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EthCC 3 — March 3 - 5, 2020

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ETHCC

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March 3 - 5, 2020

ETHEREUM COMMUNITY CONFERENCE 3

Maison de la Mutualité, Paris, France 🇫🇷
00 weeks 00 days 00 hr 00 min 00 sec

ABOUT ETHCC

The Ethereum Community Conference (EthCC) is the largest annual
European Ethereum event focused on technology and community. Three
intense days of conferences, networking and learning.

ALL TALKS AND WORKSHOPS ARE ORGANISED IN OUR 15 TRACKS :

Blockchain for Good
__

USING NFT'S AND RADICAL ECONOMICS TO SAVE ANIMALS - TALK

Clark Jonjon
__

Currently, contributing towards a cause that is close to your heart,
like endangered animal conservation, is detached and unrewarding.
Donations are simply once off and forgettable. This talk will explore
how we can create a meaningful social impact economy using ethereum
and some radical economics. In 2018, Wyl and Posner released a book
called radical markets, that discussed interesting ideas such as
having assets that are Always For Sale (AFS). This can be applied in a
very interesting manner to a non-fungible token market, where the
proceeds of generated from this AFS mechanic can create a meaningful
social impact economy. As a POC, https://wildcards.world __
was developed which is currently generating
hundreds of dollars a month to protect endangered animals.

IS THE US DOLLAR OR VOLATILE CRYPTO REALLY THE BEST STORE OF VALUE FOR
INTERNATIONAL SOCIAL ENTERPRISE PROJECTS? - TALK

Dave Appleton
__

HelloGold have been working since 2016 to help those underserved by
the banking system to protect their wealth by enabling micro
investments in vaulted gold. We would like to propose using tokenised
gold (GOLDX) as a store / transfer of value medium to isolate projects
from currency volatility.

WEB3.0: TRANSFORMING THE HUMAN WEB FROM 0 TO A 1 SUM GAME - TALK

Nikola Madjarevic
__

We'll discuss how the old (current) web has developed on top of a
master-slave architecture, giving rise to centralised powers enslaving
our information, value and rights, and how the web3.0 revolution
stands to evolve a new human network for the people, BY the people.
We'll discuss the Why and "What for" of the Blockchain and
Decentralisation revolution, and then review How these 2 forces can
help emerge a new era for mankind.

TRUSTLESS TRANSLATION FREELANCING - TALK

Ferit Tunçer
__

Translation is a special subtype of freelancing where the customer
receives a service of which they can't verify it's quality. Since the
customer lacks knowledge of the language, how can he verify that the
translation was done properly?
Up to now, the hard-to-verify nature of translation work was solved by
working with trusted translators only.
If he knows a good translator, the customer can use his services. If
he doesn't, he will have to resort to authorities that will provide a
certified translator (albeit expensive).
But again, the customer will still have to trust certifying
authorities (a government or a company) and assume the certified
translator will do an excellent job to protect their reputation.
Is there a better and trustless way to handle translations?

LEVERAGING AFRICAN POPULATION TO GROWING ETHEREUM DEVELOPER ECOSYSTEM
- TALK

Ayodeji Awosika
__

The talk will be sharing the review of the on-going 500 Nigeria
Developer for Ethereum program and be explaining how efforts can be
put in place to use the population and intellect of Africans to
increase the number of Developers in the Ethereum Ecosystem

IBISA ENABLING THE NEW GENERATION OF INSURANCE FOR AGRICULTURE
HARNESSING EARTH OBSERVATION DATA AND BLOCKCHAIN - WORKSHOP

Jean-Baptiste Pleynet
__

How blockchain can enable services that before was not possible and
have a real impact in peoples lives

BREAKING DOWN DATA SILO'S WITH SELF-SOVEREIGN IDENTITY - TALK

Marnix Van Den Bent
__

Give users full control over their data! After this talk you know
where to start if you want to build an identity app and how to make
identity protocols interoperable by using the open-source Universal
Ledger Agent components. You'll get an update on our SSI activities
and pilots.

GENERALIZED TOKEN CURATED REGISTRIES: FIGHTING CORRUPTION, FAKE NEWS
AND BEYOND. - TALK

Matheus Alencar
__

Token curated registries can empower communities to organize their
information in a fair and neutral way. We start by presenting how
token curated registries are being used for self regulation and fraud
detection in exchanges and how this logic can be extended to fight
corruption, fake news and censorship. Finally, we introduce the
Generalized TCR, a tool that anyone can use to cheaply build and
deploy new token registries in their community.

IMPACT DELIVERY AGREEMENTS: A NEW PROTOCOL FOR INVESTABLE BOUNTIES -
TALK

Raphaël Mazet
__

Impact Delivery Agreements (IDAs) are a new primitive that turn the
delivery of impact into transparent financial instruments. Think of
them as bounty contracts with investable future cash flows.
IDAs are at the core of version 2 of the Alice "social DeFi" protocol
which is currently on testnet. IDAs work by allowing anyone to make
promises about impact they aim to achieve, and to sell the future
payments related to the fulfilment of those promises to investors.
They are integrated with Gnosis (Alice is an ECO fund grantee) for the
creation of prediction markets, and Kleros for arbitration.

ELECTRASEED FUND - DECENTRALIZED FINANCE TO ACCELERATE ACCESS TO CLEAN
ENERGY IN GLOBAL SOUTH & NORTH - TALK

Sebnem Rusitschka
__

Tokenization is the process of connecting disparate sources of value
through their digital representation (data) in a value network that
can scale globally. The enabling technologies are digital signatures,
programmable contracts, and distributed public ledgers.
When the value of access to clean electricity is tokenized, one
(anyone) can create and use new incentive mechanisms for the
appropriate allocation of resources that is not solely informed by
profit maximization.
Electraseed Fund is a demonstration of this potential: Decentralized
funding of solar smart microgrids in the Global South & North,
enabling global participation and balancing of financial goals with
positive social, environmental, and economic impact of the actions of
all stakeholders.

BLOCKCHAIN PROTOCOLS FOR REPATRIATION OF STOLEN ASSETS - TALK

Shimon Newman
__

My father (https://www.ft.com/c…6-9d4d-c11776a5124d __
) and
I are developing a blockchain protocol to facilitate the monitoring,
security, and verified impact of repatriated assets.
The talk would be on the opportunities and challenges around this
domain. It would cover the journey of my father and me to get to this
stage, including speaking at the French Senate last year, how I was
inspired by last year's EthCC, and our partnerships with blockchain
protocols like Disberse, ixo, and with organizations like the Africa
Network for Environmental and Economic Justice.
It would also outline our vision, as well as some of the other
opportunities out there in terms of blockchain for good.

DECENTRALIZED INSURANCE - REACHING ADOPTION BY THOUSANDS OF
SMALLHOLDER FARMERS IN SRI LANKA - TALK

Christoph Mussenbrock
__

Crypto Economics
__

FUNDING ECOSYSTEM PUBLIC GOODS - TALK

Vitalik Buterin
__

Public goods of different forms, including research, client
development, documentation, outreach, wallets, user experience and
more are the lifeblood of blockchain ecosystems. And yet, with the
sole exception of network security, there has yet been little
attention to how to direct funds to them - both where funds come from,
and how to decide who gets paid. I review existing approaches, inside
and outside ethereum, including quadratic funding in Gitcoin Grants as
well as other mechanisms, and compare the benefits and drawbacks of
each one.

BUY THE DIP - TALK

Rick Dudley
__

A discussion on the current state of The Ethereum Community and the
challenges it faces from without and within.

VC FUNDING FOR BLOCKCHAIN STARTUPS - WORKSHOP

Ambre Soubiran
__

I'm happy to help guide fundraising startups through the stormy sea of
VC fundraising, review their decks, hear their pitch and provide 1 to
1 feedback.

ETH MARKET DEPTH AND STRUCTURE - TALK

Ambre Soubiran
__

Taking a look at the current state of the largest liquid ETH markets,
analysing exchange prices, volumes and order book structures over time
and see how markets are becoming more efficient and liquid

INCUBED - A CRYPTO-ECONOMIC MINIMAL VERIFICATION CLIENT - TALK

Christoph Jentzsch
__

The concept, as well as the functionalities of the Incubed client,
will be presented.
Incubed is an ultra-light client with quantifiable economic security.
The smallest version only needs around 250kb of storage. The full
Incubed client (including EVM implementation) needs about 450kb.
The typescript version, as well as the c and wasm version of the
client, will be shown. Furthermore, the command line functionality of
Incubed will be presented.
An outlook of future developments, especially how to access the
Bitcoin network, with secured access through the Ethereum network will
be shown.

INCENTIVIZING FUNDING FOR PUBLIC GOODS - TALK

Griff Green
__

We are building "Commons" - basically Token Bonding Curves attached to
DAOs that can be used to support sustainable funding for a public
good... We are starting with advancing token engineering research :-D
we use a lot of Token Engineering to make all this work

TOKEN MAXIMALISM - TALK

Lasse Clausen
__

A comprehensive thesis of why public good networks are best structured
open source with economic incentives instead of for profit
corporations.

ALGORITHMIC STABLECOINS - TALK

Markus Franke
__

Algorithmic, or more specific seigniorage-style stablecoins
algorithmically expand or contract the supply of the stable token in
order to match demand. These systems typically introduce one or more
non-stable, or seigniorage, assets that may fluctuate in value in
response to changes in demand for the stablecoin. These types of
systems are arguably the most decentralized, as they don’t rely on
any other crypto or fiat currency in order to maintain their
stability. However they can be complex to build and analyze, and may
be particularly vulnerable to a decline in market confidence around
the seigniorage token or the cryptocurrency space as a whole.

OPENVINO: TOKENIZATION, TRANSPARENCY, AND TRACEABILITY - AN
OPEN-SOURCE WINERY IN ARGENTINA - TALK

Mike Barrow
__

Open-source winery - sensors that write directly to blockchain -
wine-backed crypto assets - linking wines to the blockchain using
non-invasive spectroscopy - viniswap.costaflores.com, forking unisocks
and the uniswap bonding curve for wine tokens

COMBINATORICS AND CRYPTOECONOMICS - TALK

Oliver Beige
__

Combinatorial optimization is a common tool in operations research,
but it is all but unknown in economics. To define the new field of
cryptoeconomics, it is important to understand how combinatorics
shapes human interaction, how eliminating combinatorics has limited
the scope of traditional economics, and how cryptoeconomics can fill
this gap.

CRYPTO POWERED SOCIOECONOMIC SYSTEMS - TALK

Petar Jursic
__

Building a social infrastructure for the builders ecosystem, then
expanding it as a socioeconomic system layer above the nation states.
MetaCartel > Ethereum > wider crypto > general freelancer > anyone.
Real life RPG, something like that.
https://twitter.com/…1199447733901418496 __


DEMYSTIFYING STABLECOINS: CRYPTOGRAPHY MEETS MONETARY POLICY - TALK

Seyedehmahsa Moosavi
__

In this talk, I will represent our most recent research on Stablecoins
(SoK: demystifying stablecoins). So far, the majority of the research
works on this topic focus on enumerating the intricate details of how
a particular ‘brand’ of stablecoins works today—details that
could change tomorrow.
I will provide a thorough understanding of stablecoins and fundamental
stability mechanisms. As opposed to the other research works on this
topic, we are very selective in the concepts from finance we bring
into the survey and explain each from first principles, while
attempting to minimize or eliminate jargon. I will also present the
taxonomy we use to classify stablecoins in the way it hasn’t been
done before.

ENABLING OPPORTUNITY AND CHOICE WHERE THERE ARE NONE - TALK

Simona Pop
__

Exploring the impact of blockchain based models in empowering
individuals and communities to access resources (information,
education, work).

POTENTIAL LEGAL IMPLICATIONS OF PROOF-OF -STAKE BASED NETWORKS - TALK

Sonja Prstec
__

The increasing use and implementation of PoS in various distributed
ledger networks has added an additional layer of complexity to the
legal and regulatory issues involved in the regulation of distributed
ledger networks and cryptocurrencies including complex legal issues
relating to regulatory status and treatment under existing laws,
compliance (including valuation, custody and reporting), application
of security laws, taxation, and anti-money laundering.

SCHELLING GAMES AND THE THEORY OF VOTING SYSTEMS - TALK

William George
__

In traditional social choice theory one finds that there are
difficulties in designing election systems with desirable properties
to decide between more than two candidates, see for example Arrow’s
Impossibility Theorem. Meanwhile Schelling point based voting is being
used in blockchain applications such as the Kleros dispute resolution
system and a number of oracles. Here participants are incentivized to
be coherent, rather than to vote their personal preferences as in
traditional elections. In this talk we will briefly outline some ways
in which the tactical voting considerations of traditional elections
can nonetheless manifest themselves in Schelling point based systems.

INTRO TO CRYPTOECONOMIC SIMULATION: CADCAD BEGINNERS WORKSHOP -
WORKSHOP

Griff Green
__

This workshop is friendly to any coding level. The only requirement is
that you are Code Curious! Bring your Laptop, we will be coding! We
will start with a quick overview of why it is so important to create
simulations, specifically as it applies to the Commons Stack, and then
we will put our heads down and start working on a cadCAD tutorial with
technical support. If you are familiar python or agent based modeling
you will be ahead of the curve and there will be challenging exercises
for you to work on. This will truly be enjoyable for all levels.

DECENTRALIZING THE GENERATION OF MARKET ALPHA USING BLOCKCHAIN DATA -
TALK

Maksim Balashevich
__

A primer on developing market strategies by leveraging on-chain and
social media information, and the roadmap to decentralizing market
know-how and alpha creation.

dApps / UX /UI
__

HOW I TOKENIZED MYSELF, TWICE - TALK

Alex Masmejean
__

- I got sent 1500 DAI to Berlin from California on 5 days notice
- debt is cash, so my debt was tokenized
- 10% interest + principal
- Pay it forward (Ethereum culture and great community)
- Burnt by AAVE
- Following this debt token, TryRoll.com tokenized me $ALEX
- Onwards with ISAs & crypto and its future implications

BETTER UX THROUGH META TRANSACTIONS – LESSONS FROM OUR EXPERIENCE
BUILDING UNIVERSAL LOGIN - TALK

Alex Van De Sande
__

In 2019 we decided to improve the Ethereum onboarding experience by
using meta-transactions, relayers, ENS and a multisig contract
account. In this talk we share our progress and what we learned on UX
doing that.

EVOLVING DESIGN IN WEB3 THROUGH OPEN SOURCE PRINCIPLES - TALK

Amy Jung
__

In Web3, open source is a default setting. Then Design too, is
expected to function with the same ability to look inside the process
at any time and facilitate permission-less collaboration. How can we
evolve traditional design with these open source principles?
This talk brings together a mini-history of Web3 Design and its
driving forces, as well as lessons from UX Audits, Burner Wallet
collaborations, Design Systems, and more.

BIZ DEV 101: STRATEGIES FOR SCALING - WORKSHOP

Ashleigh Schap
__

"An in-depth strategy workshop for crypto projects that are seeking to
improve messaging around their products, develop business development
strategies and scale their growth."

#LOCONOCO: HOW NO-CODE AND LO-CODE TOOLS WILL TAKE ETHEREUM MAINSTREAM
- TALK

Dennison Bertram
__

No-Code tools are quickly rising in the Web2 world, but what about
Web3? No-code services like Squarespace, WebFlow, Wix, Shopify and
others now power tens of millions of websites on the internet yet in
blockchain we are still focused on builders who know how to code.
Following the proof-of-concept demo of DappHero in November 2019 where
typical no-code website was converted to a dApp in seconds, a vibrant
discussion has emerged around getting not just 1 million developers in
Ethereum in 2020, but 1 million designers, creators, builders,
innovators and more. Thus the Lo-code No-code movement was born!

CASSANDRA CROSSING THE DIAMOND: TIPS & TRICKS FOR ALIGNING ON YOUR
PRODUCT - TALK

Chriss Sugg
__

This talk will center around one of the most important stages in the
product design process, namely the point of alignment on the problem.
With the British Design Council’s Double Diamond design process as
our model, we will explore how to cross the diamond from problem
discovery to problem alignment. It is at this point in the process
where cross-functional communication and alignment on user needs is
essential. We will touch on the value user research and techniques
that have worked at Coinbase for gaining team-wide buy-in. Open to
designers and non-designers alike!

IMPROVING WALLET UX AND SECURITY THROUGH A DECENTRALIZED METADATA AND
SOURCE CODE REPOSITORY - TALK

Christian Reitwiessner
__

Transaction confirmation dialogs are still the same as in the dark
days of Frontier. A popup asks you to confirm sending zero Ether and a
bunch of hex characters to a contract. Clicking the "confirm" button
now could mean that you finally get access to that rental hoverboard,
but it could also mean that you lose your beloved super rare
cryptokitty. The interesting fact is that the solution has been there
for a long time: The Ethereum Natural Language Specification (natspec)
combined with on-chain metadata hashes. We present a system that makes
metadata, ABI, natspec and contract source available in a verifiable
and decentralized manner such that it can all be easily used in
wallets and other tools.

THE ESSENTIALITY OF PRODUCT DESIGN CONCEPTS WITH DAPPS - TALK

Clement Hugbo
__

This would be typically focus on the importance of UI/UX designs and
graphics with the development of Decentralized applications. How the
flexibility designs and prototypes of dApp makes the entire work flow
and integration of Blockchain much more easier to grasp, develop,
implement and used for real-time daily activities both by developers
and the general Blockchain community.

BLOCKCHAIN AS A SERVICE PRODUCT MARKET FIT - WORKSHOP

Enrico Mariotti
__

SMART CONTRACT WALLETS AND MAINSTREAM ADOPTION - TALK

Itamar Lesuisse & Julien Niset
__

2019 saw the smashing of some of Ethereum's biggest usability pain
points. What can smart contract wallets achieve in 2020 and what does
this mean for the mainstream adoption of Ethereum?

DESIGNING ETHEREUM USER EXPERIENCES FOR HUMANS + SPECIAL ANNOUNCEMENT
AND DEMO OF A NEW MAINSTREAM PRODUCT LAUNCH - TALK

Jason Goldberg
__

In this talk we'll present how user-centric design principles can be
applied to build crypto apps that people use and find valuable,
discuss the Pepo tech stack, and introduce and demo a well-known
crypto company launching its own embedded app token using the same
Ethereum technology that powers Pepo.

A NEW ART MARKET - TALK

John Crain
__

This talk will dive into the evolving world of NFT art. I'll review
the history of were it's been, how VR fits into the story, and were we
are heading.

ADVENTURES IN LAYER 2 - TALK

Juuso Takalainen
__

I’ve spent the last year building a custom layer 2 solution for
Streamr Community Products. Experiences with building a custom layer 2
solution for distributing the revenues accumulated into the Product on
the Streamr Marketplace between thousands or potentially millions of
data producers.
The problems along the route included things like liveness
requirements, robustness in the face of Ethereum re-orgs and network
failures, figuring out threats and worst-case scenarios, and possible
mitigations.
The talk is aimed at buidlers of any experience level, who are
interested in scalable micropayments, or just what it is to build
side-chains or scaling solutions to Ethereum.

THE STATE OF ETHEREUM USABILITY: UX DESIGN PRINCIPLES TO SHAPE CRYPTO
SECURITY PRACTICES FOR THE BETTER. - TALK

Kosala Hemachandra
__

The current state of Ethereum usability shows there is no real
customer service when it comes to crypto.

This makes wallet interfaces an integral touchpoint between users and
the blockchain that will shape not only their experiences from an
aesthetic point of view but also educate them about how to best
navigate this complex technology.

MEW can speak about the security practices users have become
accustomed to and how we need to move forward. They can also share
about advancements in privacy, MEW’s approach to UX and what’s at
risk if we don’t address this crucial hurdle as an ecosystem today.

THE NEXT FRONTIER FOR DEFI: HOW MULTISIGS WILL BRING THE NEXT $1B TO
DECENTRALIZED FINANCE - TALK

Lukas Schor
__

THAT NEVER EVEN CROSSED MY MIND! HOW TO SPOT & FIX YOUR COGNITIVE
BIASES - TALK

Sasha Tanase
__

As UX Researchers our worlds are constantly populated by our user’s
cognitive biases. We may be aware of them when it comes to our users.
But are we aware of them when it comes to ourselves?
Because Blockchain is relatively new and us, researches, may have been
focused on more hands-on issues we may have forgotten to check our own
cognitive biases.
I have hardly accepted that giving our nature as human beings we are
constantly having biases which may drive us off the path and make us
turn a blind eye to feedback.
As a Product Designer in a blockchain company, I have been wrong many
times in my assumptions and I have spotted many biases in my team
members and in the users, too.

So how can we change this?

OMEN - SOLVING THE PREDICTION MARKET LIQUIDITY PROBLEM - BY DXDAO -
TALK

Stefan George
__

Omen is a new decentralized prediction market offering operated by the
dxDAO based on Gnosis's Conditional Tokens Framework. Currently, most
prediction markets like Augur are using an order book model, which
requires liquidity providers (market makers) to implement trading
strategies. This requirement and the gas costly operation of an order
book are major blockers to the adoption of prediction markets. Omen is
solving the liquidity problem by using crowd-sourced automated market
makers to provide liquidity using a simple predefined trading
strategy. Based on the Uniswap model, liquidity is provided and
incentivized by adding a spread to the outcomes, which is given to
liquidity providers. Markets are resolved by utilizing the realit.io
escalation process with the dxDAO as possible final arbitrator.
This combination of building blocks allows users to setup a prediction
market on Omen within 60 seconds incentivizing participation from the
start.
The presentation will cover all parts of Omen in detail and explain
how you can start your first prediction market.

CONNECTING GASLESS MULTISIGS TO PROTOCOLS - TALK

Theophile Villard
__

1. introduction to multisig wallet contracts (personal or business)
2. connecting them to decentralized protocols (like ENS)
3. making them gasless with the Gas Station Network and their relayers

HOW POPULAR ARE SMART CONTRACT WALLETS, REALLY? - TALK

Tobias Schubotz
__

Smart contract accounts and wallets are becoming increasingly popular.
Gnosis is known for building multi-signature wallets such as the
Gnosis MultiSig and the Gnosis Safe. Other popular smart contract
wallets are Argent, Dapper, Monolith, and proxy accounts used by
Instadapp and Maker.
In this talk, we will dive into the actual usage analytics of smart
contract accounts. After briefly touching base on the advantages of
smart contract accounts over externally owned accounts (EOAs), we will
share insights and what we found to be useful metrics, including the
number of deployed instances, the number of funds stored, activity,
transfer volumes, and user retention. The presentation will close with
a summary of learnings, challenges, and how we intend to overcome
these with the Gnosis Safe.

Ξ2DΦ - TALK

Tomasz Stanczak
__

I will be talking about the integrated DeFi, data marketplace, Eth1
and Eth2 clients in Nethermind.

PROGRAMMABLE BANK ACCOUNT FOR DEFI - TALK

Alex Bash
__

In this talk, I will discuss how to create a Coinbase-like experience
while staying non-custodial by leveraging the power of
smart-contracts. I will discuss the critical role composability plays
in the DeFi ecosystem, as well as the importance of the UX for mass
adoption. I will show how the combination of a DeFi interoperability
layer and a secure Gnosis Safe smart-contract based wallet allows us
to create a unified and secure cross-device experience for our users.
During the talk, I will compare a standard EOA (externally owned
accounts) with a programmable smart contract-based account, and
outline the possibilities the latter approach creates.

DAPP DEVELOPMENT ON SWARM - WORKSHOP

Gregor Žavcer
__

Swarm is a distributed storage platform and content distribution
service, a native base layer service of the ethereum web3 stack that
aims to provide a decentralized and redundant store for dapp code,
user data, blockchain and state data. Since the last EthCC there has
been big advances and Swarm is now ready for developers to start
buidling dapps that push the decentralised vision further, towards the
world computer. The talk will give an overview of new features and
outline future plans and developments of Swarm and the ecosystem.
Welcome.

NATIVE DAPP SUPPORT IN WALLETS - THE STARKEX CASE STUDY WITH LEDGER
AND WALLETCONNECT - WORKSHOP

Louis Guthmann & Nicolas Bacca
__

For most dApp today, integration with wallets is limited to signing
some data without the ability to verify what is being signed. This
requires a lot of trust in the UI for users. To minimize this required
trust, we need wallets to be able to understand and parse the data the
user sign.
With the launch of StarkWare's first product and its requirements for
specific cryptography, a collective effort has been set in motion to
improve both the security and the dApp UI on wallets. Ledger,
WalletConnect and StarkWare will present how they managed to define
and work together to create what could become the blueprint for native
dApp integration.

HACKING TORNADO.CASH TO SUPPORT GASLESS TOKEN MIXING WITH GSN2 - TALK

Liraz Siri
__

How we hacked Tornado.cash to support gasless token mixing with the
new GSN2, and how the GSN2's support for gasless interaction with
unmodified smart contracts creates a new 'Gas as a Service' business
model for wallets and network infrastructure providers.

Decentralised Finance
__

BUILDING A COMPLIANT AND ACCOUNTING-READY BOOKKEEPING SYSTEM FOR
DECENTRALIZED FINANCE - WORKSHOP

Antoine Scalia
__

I would highlight the accounting and tax challenges that decentralized
finance is raising, based on a few examples of staking and lending
activities. Based on these challenges, I would share a few best
practices that companies and investors should follow if they want to
be compliant.

NEW FRENCH REGULATORY FRAMEWORK FOR DIGITAL ASSETS SERVICES PROVIDERS
- TALK

Arnaud Grunthaler
__

French government recently published application regulation applying
to Digital Assets Services Providers (now regulated in France
according to Loi Pacte). France is the first nation setting up a
complete regulatory framework for services providers offering services
around crypto and tokens (not qualifying as financial instruments).
This is a great opportunity to explain to the Ethereum community the
scope and content of this new regulation (sale and purchase of
crypto/custody/investment advice/reception and transmission of
orders/management of portfolio/undertaking of
cryptos/placement/running an exchange, etc.)

SEVEN DEADLY SINS: MANAGING LEGAL & REGULATORY RISK IN DEFI - TALK

Badri Natarajan
__

This will be a talk about dealing with regulators and managing legal
risk, particularly as a startup in the DeFi space. Attendees will
learn practical strategies and approaches to deal with regulatory
pressures, legal uncertainties and potential litigation, as well as 7
key mistakes to avoid. In other words, this talk will set out a
framework through which DeFi/crypto ventures can better understand the
legal risks and uncertainties they face and how to mitigate them. An
earlier version of this talk was delivered at D1Conf 2019 in Malta
(the decentralized insurance conference organized by Etherisc).

DEXS FOR A MULTI-TOKEN FUTURE - TALK

Christiane Ernst
__

With the DutchX, we learnt a lot: from mechanism design, user
experience, governance, iterative processes, liquidity and launch that
we gladly applied to the next exchange design, the Dfusion (working
title), featuring batch auction design. The Dfusion is about to move
from research stage to testing stage: theory predicts that it will be
a very powerful exchange, providing liquidity through ring trades and
“fairer” prices through batch auctions. It is yet to be determined
if reality will follow suit! With the rise of many ERC20 tokens,
particularly stablecoins, it’s the right time to try out this
completely new mechanisms to match the decentralized and fragmented
world we’re embarking on.

THE YIELD PROTOCOL: ON-CHAIN LENDING WITH INTEREST RATE DISCOVERY -
TALK

Daniel Robinson
__

This talk will present a sketch of a new building block for
decentralized finance: yTokens. yTokens are like zero-coupon bonds:
on-chain obligations that settle on a specific future date based on
the price of some target asset, and are secured by collateral in
another asset. By buying or selling yTokens, users can synthetically
lend or borrow the target asset for a fixed term. yTokens are fungible
and trade at a floating price, which means their “interest rates”
are determined by the market. The prices of yTokens of varying
maturities can be used to infer interest rates, and even to construct
a yield curve. yTokens can be built using an on-chain price oracle,
or, when the target asset is an on-chain asset, using “physical
settlement”.

THE GROWTH OF DEFI AS SEEN THROUGH ON-CHAIN DATA - TALK

Deniz Omer
__

Kyber is integrated into 70 different dapps and wallets. With all this
on-chain data generated through these integrations we can get great
insight into how different parts of the Ethereum ecosystem are
growing. This talk highlights the data that shows the explosion in
DeFi data. We share data on volumes, new users, average trade sizes,
and other interesting metrics from the last year.

FAIR PRICE FINDING IN A DECENTRALIZED EXCHANGE ECONOMY - TALK

Felix Leupold
__

With dƒusion, we are launching a decentralized exchange that makes
use of a novel auction mechanism. dƒusion creates batched multi-token
order books which are settled with uniform (thus intra-arbitrage free)
clearing prices. Full decentralization is achieved by making the
settlement process permissionless and allowing anyone to submit a
“better” solution within a given time.
In this presentation we focus on how to quantify “better” prices.
We examine some classic auction design approaches such as maximizing
trader’s welfare/utility and demonstrate their limitations when
applied to the EVM.
From there we will derive the metric used in dƒusion to find the
“fairest” settlement.
Finally, we motivate why this mechanism is superior in highly
fragmented markets (e.g. USD stablecoins).

DEFI ADOPTION? LET'S LOOK AT THE NUMBERS. - TALK

Fredrik Haga
__

Deep dive in what DEX traction actually looks like. What does the
volume growth look like? How many users? What share of usage is from
whales?

A PREDICTION MARKET IS NOT A PREDICTION MARKET IS NOT A PREDICTION
MARKET: A SHORT TAXONOMY OF PREDICTION MARKETS BASED ON TECHNOLOGICAL
UNDERPINNINGS - TALK

Friederike Ernst
__

While the idea behind prediction markets is universal, the way in
which prediction markets are implemented varies significantly
depending on the degree of decentralization and exact architecture of
their core three components:
Market setup, trading mechanism, and oracle resolution.
I will present a survey of blockchain prediction markets that are
currently live, comparing and contrasting their design architectures.
You should come away from this talk feeling you understand the current
prediction market landscape and why teams made the product decisions
they did.

UNISWAP V2 - TALK

Hayden Adams
__

Give an overview of Uniswap V2, which includes arbitrary erc20/erc20
pairs, oracles, and other improvements

MANAGING RISK IN DEFI - TALK

Hugh Karp
__

Interacting with DeFi smart contracts has a great opportunity for
returns but also comes with risks. We have developed a simple
framework that can be used to assess risk and understand what actions
you should take.

LEGAL TROUBLESHOOTING FOR DEFI PROJECTS: DATA & RESULTS - TALK

Jacek Czarnecki
__

At Devcon 5 I led a first of its kind workshop on Legal
Troubleshooting for DeFi Projects. Workshop participants answered
questions in multiple polls related to most important legal problems
of DeFi, forming an unique data set. It is now time to show data and
results, and present the conclusions to the DeFi and Ethereum
communities.

BECOME A CRYPTO FUND MANAGER ON MELON - TALK

Jenna Zenk
__

Melon ecosystem and roadmap overview & a special announcement

TOKENIZING THE WORLD OF SPORTS BY LEAVING BLOCKCHAIN BEHIND - TALK

Jonas Rubel
__

Why Sports is a case that could be important for achieving mass
adoption and why we had to come up with an unconventional go-to-market
approach (by the standards of blockchain companies).

SHIFTING FROM "EQUITY" TO "SHARED VALUE AGREEMENTS" - TALK

Justin Ahn
__

A review of Quidli's pivot from applying security tokens for equity to
tokens as synthetic compensation in order to address issues of
control, taxation, and securities compliance; and what opportunities
this creates for introducing more DeFi elements to businesses,
business use cases.

PEOPLE POWERED MONEY ON THE TRUSTLINES NETWORK - TALK

Kristoffer Naerland
__

"People-Powered Money" is an under-collateralized form of
blockchain-based credit. This credit can be created without a
pre-funded crypto wallet, access to a bank, or an exchange account. At
EthCC, People-powered money will be shown, for the first time, live on
the Trustlines Blockchain.
In 2019, the Trustlines Blockchain, a minimal Proof-of-Stake sidechain
to Ethereum, was announced at EthCC. It launched roughly six months
later. Blockchain-based mutual credit named "People-Powered Money" is
planned to go live in Q1 of 2020.
People-powered money is stored on-chain but can be created and used
without a prefunded crypto-wallet. We’ll explain how the protocol
and incentives work, and have a mobile app available that the audience
can download and use.

ROTKI, THE FINANCIAL TOOL THAT RESPECTS YOUR PRIVACY - TALK

Lefteris Karapetsas
__

Rotki is the portfolio tracker and accounting tool that respects your
privacy. In this talk we will see what it is, what problem it solves
and what's new in the latest version. More specifically how it
integrates with DeFi and general accounting for the ethereum
blockchain.

THREE WAY ATOMIC CROSS CHAIN SWAP - TALK

Léonard Lys
__

My talk will be a demo of a three way atomic cross chain swap between
btc, an ERC721 token and tezos.

USING CONDITIONAL TOKENS - WORKSHOP

Lu Hua
__

We will setup, inspect and apply conditional tokens.
We will
* prepare conditions with various oracles
* collateralize them with different ERC 20 tokens
* send and receive the ERC 1155 conditional tokens
* see how conditions combine
* resolve conditions and redeem conditional tokens
* touch on concepts like
- simple escrow
- prediction markets
- futarchy

THE NETWORK GLUE: THE ROLE OF THE APPLICATION-LAYER IN FOSTERING
DECENTRALIZATION AND PARTICIPATION - TALK

Mara Schmiedt & Collin Myers
__

Friction, fragmentation and regulatory uncertainty - the road to
launching and participating in token-powered networks is hard. How has
the ecosystem evolved and what role does the application-layer play in
it's success? Find out how Activate is enabling the decentralized
networks of tomorrow.

THE NEW ECONOMIC PARADIGM - TALK

Mel Gelderman
__

The future of the global economy won't rest on those repurposing the
same systems we already have in place, the future of economies will
rest squarely in a new-decentralised paradigm, one built on the
backbone of blockchain.

HOW AGGREGATION WILL IMPROVE LIQUIDITY ON DEXS - TALK

Mounir Benchemled
__

2019 is without a doubt a historical year for decentralized exchanges
and DeFi overall.
DEX volume has skyrocketed this year while DeFi locked value is almost
at a billion dollar. This significant growth made our community to
raise the bar by establishing more and more ambitious milestones. To
get there, we need to solve one of the biggest challenges of DeFI -
low liquidity. This is one big thing that holds back retail and big
investors in switching to DEXs. One way to tackle this issue is
aggregation.

FLASH LOANS: THE GOOD, THE BAD, AND THE UGLY - TALK

Stani Kulechov
__

Rehypothecation is an substantial practice in traditional finance to
re-use assets that are used as collateral. Reusing assets will
increase the utilisation of collateral and channels higher yields to
depositors and lower rates to borrowers. Stani from Aave showcases how
rehypothecation is achieved in DeFi by unlocking value with
tokenisation and flash lending.

BUILDING THE FUTURE OF BUSINESS BANKING WITH CRYPTO - TALK

Thibaut Sahaghian
__

I'll give insights on Multis' backstory and why we want to reinvent
business banking, what we've built so far, and how we're through
software composability to bring together DeFi and fiat.

PTOKENS: EMPOWERING DEFI WITH CROSS-CHAIN COMPOSABILITY - TALK

Thomas Bertani
__

Today, the most successful DeFi tools are on Ethereum. Yet, the
biggest cryptocurrencies live on multiple blockchains.
The pTokens technology enables cross-chain DeFi composability. The
Ethereum blockchain has acted as a catalyst for the growth of a whole
new decentralized financial system. Based on the tech stack built in
the last 5 years by Provable, the longest-running oracle service,
pTokens level up the game by connecting any asset to any blockchain. A
decentralized system making the movement of assets unchained thanks to
a multi-party computation (MPC) approach where each validating node is
secured by Trusted Computing for additional security.
By complementing cutting-edge technologies one with the other, pTokens
make pBTC on ETH as well as pDAI on EOS and pETH on Liquid possible.

NETHERMIND DATA MARKETPLACE FOR DEFI - TALK

Tomasz Kajetan Stanczak
__

Presentation of the Nethermind Data Marketplace working on Ethereum
Mainnet, presenting DeFi space data providers like Token Analyst,
Blocklytics, Kaiko, CryptoCompare data delivered via Nethermind Data
Marketplace. Also a note on the planned Nethermind modular DeFi
gateway integrated with the Nethermind Ethereum client.

RETURNS OF HODLING VERSUS DEFI-ING - TALK

Alex Bash
__

In this talk, we will take a brief tour of different financial
instruments of DeFi and compare them to the centralized alternatives.
We will cover the process of calculating ROI for instruments like
Compound, Uniswap, Token Sets, and others, and then compare past
performance of different financial instruments in DeFi. We will end
with exploring online tools to monitor the returns of different DeFi
based assets.
This talk will be largely based on this article:
https://blog.zerion.…fi-ing-c6f050e89c8e __


SCALING A DEX WITH ZERO-KNOWLEDGE PROOFS - TALK

Will Harborne
__

Last year at EthCC Will Harborne addressed important topics on
“Crossing the Chasm” - the necessary steps needed to promote and
pave the way for institutional and retail adoption of decentralised
exchange platforms. Since then, a lot has developed, and the
permissionless DeversiFi exchange has incorporated many of these
steps, gleaned insights along the way, and most importantly is
integrating StarkWare technology in a first-of-its-kind STARK-powered
exchange. This is significant as it will take decentralised trading to
the next level, encouraging institutional adoption by providing a
scalable, high-speed, private and compromise-free trading solution
that competes with centralised offerings. DeversiFi has been created
and Ethereum 2.0 is in the picture, therefore, Will can speak on this.

THE NEXT $10B IN DEFI: OPENING UP OUR WORLD TO USERS IN THE REAL WORLD
- TALK

Lucas Vogelsang & Gustav Arentoft
__

This talk is in collaboration with Gustav Arentoft from MakerDAO. For
DeFi to grow beyond Ethereum early adopters, we need to build lending
products and other financial products that compete with traditional
finance product. That involves "real world assets". We'd like to go
through advantages & disadvantages and present what different people
in this space are doing.

PUTTING THE 'DE' BACK IN 'DEFI' - TALK

Cassidy Daly
__

A deep look into how DAOs can help us put the 'De' back in 'DeFi'.
Starting with a hard analysis of the largest 'Decentralized' Finance
projects in the Ethereum ecosystem, and then getting down into the
details of how DAOs can be used to actually start to open up different
layers of the system.

DEFI PRICE FEED: A SIMPLE, SECURE AND AFFORDABLE ALTERNATIVE -
WORKSHOP

Robert Edström & Victor Bonhomme
__

Discover how to leverage an innovative combination of technologies
including Trusted Execution Environments (TEE) to feed high quality
price data into your Ethereum smart contract, while keeping it as
simple, secure and affordable as possible.

HOW TO CAPITALIZE ON THE ULTRA-LOW INTEREST RATES IN EU AND VALUE
SETTLEMENT OVER THE ETH NETWORK. OPENING THE BOX OF NEW STABLECOIN USE
CASES - TALK

Gregory Klumov
__

STASIS develops the first euro-focused DeFi lending project that will
deliver Europe’s ultra-low interest rates to the crypto-community.
STASIS DeFi is based on a legacy P2P crowdlending model with
proprietary mobile UI, and white-label/API solution for enterprise
customers. Our blockchain history includes the biggest euro-backed
stablecoin – EURS, which is ranked 1st among non-USD peers by
reserves and by DTV, and 6th - overall. We developed a comprehensive
infrastructure for EURS with 10 fiat on/off-ramp channels, over 20
exchanges, and 4 service providers that we plan on utilizing in our
lending endeavor.

SECURITY TOKENS, AT LAST! - TALK

Alexis Collomb
__

In this brief talk, we will discuss the pros and cons of security
tokens (ST) in terms of quality of service, efficiency and economics,
for issuers and investors alike, and what they bring to the table of
traditional finance.

NEOBANKING: DEFI'S SECRET WEAPON - TALK

Ben Jones
__

DeFi has a distribution problem and solving it requires more than a
sexy UI. Bitwala believes in a CeFi/DeFi model where users can have
the best of both worlds. Neobanks have become unicorns by improving
the interface of finance while DeFi is the first chance to improve the
actual infrastructure. Can we have both?

NAPOLEONX, 2 YEARS AN ICO - TALK

Stephane Ifrah
__

After having successfully launched our ICO in February 2018, we have
managed to deliver on most of our promises: launching our platform
displaying our trading signals, acquiring an asset manager regulation
in France and launching our first BTC regulated fund. We are now
adding a new feature to our token with the launch of napbots.com, a
retail oriented platform that rents trading bots based on our existing
strategies.

Developer Tools
__

RADON: A DOMAIN-SPECIFIC LANGUAGE FOR ORACLES - TALK

Adán Sánchez De Pedro Crespo
__

Oracles are set to bridge the abyss between the realm of smart
contracts and data outside the blockchain. This ambitious goal
requires us to remove the inherent indeterminism of real world events
by aggregating, filtering and boiling down multiple data points into a
single, predictable datum. This is no easy task, especially for a
decentralized network.
In this presentation, we will introduce RADON: a domain-specific
language that provides a new ontology and semantic infrastructure to
enable smart contract developers to define how external data will be
retrieved, aggregated, filtered, reduced and reported to their
contracts. We will reflect on the challenges that we faced and the
quirky, wicked and hidden incentives that can be accidentally
introduced by poorly constructed queries.

ETH.BUILD - WORKSHOP

Austin Griffith
__

web3 prototyping and education

WHY YOU DON'T WANT TO DEVELOP ON ROPSTEN - TALK

Afri Schoedon
__

The Ropsten testnet stalled and forked multiple times this year. This
talk explains why this is a good thing for core developers and why
application developers don't want to rely on the Ropsten testnet but
rather deploy their contracts to the Görli testnet.

FANTASTIC METRICS AND WHERE TO FIND THEM - TALK

Bogdan Habic
__

Monitoring and alerting are the pillars of making any successful
production application. Now, with the rise of more and more
production-ready DApps and protocols, we need to reflect on the
current monitoring ways and how to apply them to the Blockchain
ecosystem.

BUILDING YOUR OWN BLOCKCHAIN IN UNDER AN HOUR - WORKSHOP

Bruno Škvorc
__

We'll use Substrate to build a custom blockchain from scratch, plug in
some custom modules, and launch the nodes that power it in that very
room.

SECRETS, LIES, & SPIES: A HISTORY OF CIPHERS - TALK

Daniela Osorio
__

From the beginning of recorded history, codes and ciphers have been
used to carry secret messages. We’ll explore some of the most
significant early encryption methods such as the Caesar Shift Cipher,
Scytale, the Vigenère Cipher, Playfair, and the Enigma Code.
The race to create even more complex codes (and the parallel race to
break them) continues today, as computers create “unbreakable”
encryptions of sensitive data.

WHERE WE GO FROM HERE- A YEAR IN DEVELOPER ADVOCACY - TALK

Dennison Bertram
__

SIMPLE FORMALLY VERIFIED DAPPS—AND NOT JUST SMART CONTRACTS - TALK

François-René Rideau
__

Building a DApp is are extremely expensive, slow and risky using
today's tool—because a single bug can cause your users to lose all
their assets. MuKn is making it orders of magnitude cheaper, faster
and safer to build DApps and formally verify them. To achieve this
result, we have to step back and recognize that a DApp is much more
than a "smart contract", but an interaction between multiple
distrusting parties, that runs mostly on their respective computer
systems, not just on the blockchain.

WHY META-TRANSACTIONS IN ETH 1.0 SUCK AND WHAT WE CAN DO ABOUT IT -
TALK

Patrick Mccorry
__

Meta-transactions are useful when someone else (a relayer) can pay the
gas fee on a user's behalf. It is promoted as a great mechanism for
on-boarding new users, helping others transfer ERC20 tokens or just to
play around with Tornado cash. We have spent the past few months
building, any.sender & any.watcher, a financially accountable
meta-transaction relayer. Its USP is a smart-contract enforced quality
of service or your money back. Along the way, we have faced hurdle
after hurdle after hurdle to get it up and running, thanks to a dash
of wizardry, unicorns and star-alignment. However 99% of the problems
faced are fundamental due to the limitations in ETH 1.0 that can
easily be addressed in ETH 2.0. We'll take this opportunity to talk
about why meta-transactions are useful, the any.sender design, and
what really needs to be fixed in ETH 2.0 to ensure meta-transactions
become a native-primitive of the eco-system.

THE SECRETS YOUR KEYS HOLD - TALK

Frankie Pangilinan & Kyra GauthierDickey
__

KEYCARD: AN OPEN FRAMEWORK FOR SMART CARDS IN CRYPTO - TALK

Guy-Louis Grau
__

We want to explain why smartcards have an important role to play in
the crypto sphere 1- to bring security and ownership of their private
keys to users 2- to foster adoption of crypto 3- to bring crypto
payments in the physical world. And how Keycard as an open source
framework can be used by any project to create such smartcards. We
will illustrate how Status and other projects have integrated it.

ARBITRARY MESSAGE BRIDGE - TALK

Igor Barinov
__

The Arbitrary Message Bridge (AMB) is designed to relay any data
between two EVM-based chains. The originating contract encodes data in
the form of an arbitrary method call, which can also include or
exclude parameters.

GWASM - CHALLENGES IN SECURING DISTRIBUTED MARKETPLACE IN TRUSTLESS
ENVIRONMENTS - TALK

Jakub Konka
__

Thanks to gWasm, Golem users can now execute Wasm apps on external
machines paying their owners for the computational power consumed.
However, such a solution entails many security issues.
We will present how we integrated the sandbox and what our future
plans for Wasm sandboxing are. In any distributed setup with bounded
trust, it is difficult to guarantee that the results computed by a
random node on the network are in fact correct. In this talk, we will
discuss how this was achieved in gWasm, discussing the pros and cons
of the method used.
We will comment on the latest addition to the Wasm world, the
WebAssembly System Interface (WASI). We are currently actively helping
develop WASI as contributors to the Bytecode Alliance’s Wasmtime
runtime

SETTING UP ETHEREUM WORKFLOWS WITH THE STREAMR CANVAS - TALK

Jonathan Wolff
__

The Streamr Canvas is an open-source, web-based GUI tool for creating
workflows around stream processing, with modules that process, source
and sink data from diverse sources such as IoT sensors, SQL databases,
HTTP, and Ethereum blockchains. In this talk, we showcase Streamr’s
Ethereum modules, which allow users to graphically setup Ethereum
transactions and listen for Ethereum events. We’ll use Streamr’s
GUI to create a simple oracle service that publishes stock price data
to an Ethereum contract, and a listener that processes price data to
take automated action. The talk will be of interest to anyone who
needs to automate and monitor Ethereum jobs, and accessible to
Ethereum newbies

ENS BEYOND ETHEREUM - TALK

Makoto Inoue
__

ENS is mostly seen as a way to store Ethereum Address. I will cover
other use cases.

SMART CONTRACTS AS INDUCTIVE SYSTEMS - TALK

Martin Lundfall
__

Without a proper understanding of what smart contract are, it is
difficult to say anything about what they do. This talk introduces
Act, a language for specifying the semantics of smart contract and the
strategies that can be employed to make claims about their behavior.
Such specifications serve as a target against which implementations
can be formally verified, and provide the basis for more higher-level
reasoning regarding the nature of the smart contract system.

WHAT'S NEW IN SOLIDITY - TALK

Mathias Baumann & Erik Kundt
__

Presentation & Demonstration of new features in Solidity

GRID V2 - ETHEREUM INFRASTRUCTURE AS CODE - WORKSHOP

Philipp Langhans
__

This workshop will start with an update on the development of Ethereum
Grid v2.0 and what has happened since Devcon 5.
The new concept of workflows and the new docker integration will be
covered. We will go over some existing examples of workflows such as
- how Grid could be used to get started with Ewasm clients
- to get an interactive EthersJS shell with Geth
- how to setup your personal infrastructure and private network in the
cloud
And continue by writing and publishing our own first workflow that
make use of Ethereum binaries - potentital candidates: Zokrates, Solc,
Geth, Clef, Puppeth, Prysm

DAPP PROXY CONTRACTS - AN OVERVIEW - TALK

Richard Meissner
__

Smart contracts are at the core of most of the dapps in the Ethereum
world. Often, these contracts require users to go through multiple
interactions to generate the expected end result. To put it lightly,
this could cause some inconveniences. If something goes wrong in the
process, you end up in an inconsistent state that users can’t
resolve.
Different teams have started developing “dApp Proxy Contracts”,
smart contracts that batch multiple transactions together so that
complex interactions can be performed by the user with one click.
In this talk, we will take a look at some of the dapps developing this
feature including InstaDapp, DSProxy, and the Gnosis Safe, outlining
how they work, and comparing similarities and differences.

INFURA VERSUS: TOOL FOR BENCHMARKING WEB3 PROVIDERS (REMOTE AND LOCAL)
- TALK

Sean Brennan
__

Revealing an open-source tool for comparing and benchmarking the
performance (latency, tx's per second, block header reorganization
logic, etc) of different web3 providers, including testing Infura
against a locally running Geth node, and comparing Infura vs. Alchemy
vs. other endpoints.

HOW TO DEPLOY AND CUSTOMIZE BLOCKSCOUT BLOCKCHAIN EXPLORER - WORKSHOP

Victor Baranov
__

BlockScout is an open-source full-featured blockchains explorer
supporting any chain based on Ethereum protocol. It supplies the basic
features like searching of transactions, viewing of accounts and
balances, and verification of smart contracts on Ethereum including
forks and sidechains This workshop is for those who want to dive into
the learning of the features, that BlockScout provides, and the ways
of deployment and customisation for your needs. During the workshop,
you will deploy your own instance of explorer.

META-TRANSACTION, PANDORA'S BOX OR WEAPON OF MASS ADOPTION? - TALK

Vincent Le Gallic
__

This talk presents a selection of technical challenges we face when
creating an onboarding solution based on transactions relayer and
smart-wallets. What are the most interesting (and not obvious) issues?
How technical infrastructure impact business model and vice versa?
With the proliferation of wallet solutions, communication standards
are emerging such as WalletConnect. The dilemma between
decentralization and seamless UX is about to be resolved. The talk
gives an overview of this exciting challenge.

ETHEREUM PROTOCOL DEVELOPMENT WITH WHITEBLOCK GENESIS - WORKSHOP

Zachary Cole
__

An overview for Ethereum protocol development using the Whiteblock
Genesis platform. During this workshop, we will demonstrate the basics
of such technologies as Distributed Hash Tables and gossip protocols
which comprise the low-level Ethereum stack.

DECENTRALIZED USER ACCOUNT MANAGEMENT - WORKSHOP

Daniel Nagy
__

User account management is an important part of any web application
and today users came to expect signle-sign-on solutions where they can
use the same identity and login procedure for a number of
applications, so that they do not need to safeguard an unreasonable
amount of user credentials. We present an Ethereum/Swarm-based
single-sign on solution for Web 3 and Web 2 applications that can be
easily integrated into existing or new applications and can leverage
the security of Ethereum accounts protected by hardware keys, if
required. It solves the problems of zero-ether onboarding and
potentially addresses the issue of decentralized KYC. The code is open
source and available on github.

PRESENTATION OF UNIVERSAL CHAIN REGISTRY / INTERCHAIN INITIATIVE -
WORKSHOP

Antoine Herzog
__

Universal Chain Registry: EVM + Cosmos ChainIds presentation: We will
present a new initiative to list all the ids of EVM and Cosmos-based
chains. We will also speak about the ongoing work to provide a
standardization of the chainId format and data structures to represent
multi-interface blockchains information. Github:
https://github.com/UCRegistry __
Telegram: https://t.me/UCRegistry This initiative has been founded by
several parties, including Pedro Gomes founder of Wallet Connect, IOV,
etc.

ETHEREUM MAGICIANS: INTRODUCING OPERATIONS RING - TALK

Anett Rolikova & James Pitts
__

Anett and Jamie will introduce the Ethereum Magicians and Operations
Ring of Ethereum Magicians. What does Ethereum Magicians, their role
in the community. This will be a short Intro session at the beginning
of the rest of Ethereum Magicians sessions.

ETHEREUM MAGICIANS: RUN ETHEREUM NODE - TALK

Felipe Faraggi & Greg Jeanmart
__

Felipe and Greg will show you how to set up and run the Etherum Node
so you all can run Ethereum node, what advantages, disadvantages are
with running Ethereum node

ETHEREUM MAGICIANS: ETH1.X STATELESS ETHEREUM - TALK

Piper Merriam & Alexey Akhunov
__

Abstract: ETH1.x Stateless Ethereum Working Group lead by Piper
Merriam is going to talk about progress made on Stateless Ethereum.
How the current Ethereum is going to be stateless and move into ETH1.x
Stateless Ethereum including Q&A session with Devs and Researchers
from Stateless Ethereum Working Group.

ETHEREUM FROM PRODUCT PERSPECTIVE. - WORKSHOP

Josef Jelacic
__

Let's step back and let's look at Ethereum as a software product in
the grand scheme of solutions out there.
What purpose does the platform fulfill, which market does it serve and
who are or will be the users?
This session should help us abstract from what we as individuals want
Ethereum to become to better understand where is a natural market fit
which makes sense to keep in focus.
The workshop will be moderated brainstorming where we'll try to figure
where Ethereum stands in the overall blockchain landscape.

PLUGINS & WORKFLOWS IN REMIX - WORKSHOP

Iuri Matias & Rob Stupay
__

Going through various usecases including importing contracts from the
local filesystem and EthPM, debugging contract transactions, static
analysis, solidity unit testing, verifying source code and publishing
contracts to IPFS & SWARM.

Enterprise
__

THE CHALLENGE OF DIGITAL ASSETS CUSTODY - TALK

Charles Guillemet
__

Technical insights on Ledger Vault, the enterprise digital assets
custody technology

INTEROPERABILITY AND MULTI-FACETED ENTERPRISE SOLUTIONS - TALK

Elizabeth Kukka
__

The need for multiple blockchains, at this point, ETC for incentives,
ETH for tech, hyperledger for off-chain (for example). And, why
enterprise adoption is important > because the mainstream doesn't
adopt until enterprise adopts.

LAYER 2 FOR DAPPS: WHEN DECENTRALIZED PROTOCOLS MEET THE REAL WORLD -
TALK

Frederico Ast
__

As blockchain projects struggle for mass adoption, the concept of
layer 2 gains importance for enabling real world use cases. This talk
will review Kleros approach for building an ecosystem of companies
which will bring decentralized justice to mainstream uses in finance,
insurance and e-commerce. This experience will provide a number of
insights for any protocol team to plan their own layer 2 strategy.

ONCHAIN AND OFFCHAIN PERMISSIONINING WITH BESU - TALK

Felipe Faraggi
__

This cartoon presentation will explain the differences between the
different types of permissioning in Besu
(onchain/offchain/node/account) and understand what use cases would
need permissioning in a blockchain environment.

SELF-CUSTODIAL ENTERPRISES: SECURE DIGITAL ASSET MANAGEMENT FOR
CORPORATIONS - TALK

Anna George
__

With regulations paving the way for institutional and corporate
players to enter the digital asset landscape, 2020 will see a need for
enterprises to securely store and manage crypto assets. These assets
are fundamentally different from traditional assets and come with
particular challenges in respect to security and usability. They are
bearer instruments; that means, whoever has the private key is able to
authorize transfers. Hence, securing this key against both internal
and external threats is essential to the assets’ integrity. This
talk will discuss how corporations can reduce counterparty risk and
build trusted solutions that fit into existing internal processes,
accounting practices, and security schemes.

CLOSING THE ENTERPRISE FEEDBACK LOOP - TALK

Nicolas Massart
__

How Ethereum enterprise products can benefit from developer,
documentation and support teams working together in a still very new
environment for our customers.

ETHEREUM, PRIVACY AND ENTERPRISE BLOCKCHAIN SOLUTIONS - TALK

Pedro Lopez-Belmonte
__

Enterprises have increased the number of blockchain PoC projects, but
still the adoption of distributed registry technologies has yet to
take off in the enterprise world. We will discuss how to deliver an
enterprise blockchain application with topics such as privacy, data
ownership or standards, and we will see how luxury industry is
leveraging ths technology to bring more value

USING QUORUM FOR ENTERPRISE ENVIRONMENTS - TALK

Tyrone Lobban
__

Quorum is a a fork of Go Ethereum client (geth), the official GoLang
implementation of the Ethereum protocol, designed to process private
transactions with a permissioned group of known participants. It's
enterprise-ready, open-source blockchain platform, based on Ethereum
that addresses specific challenges to blockchain adoption within an
enterprise environment such as privacy, speed, throughput.

HOW TO EMBED CRYPTO INCENTIVE IN YOUR ENTREPRISE PROCESS ? EXAMPLE
WITH CRUISE BOOKING - TALK

Vidal Chriqui
__

This talk is a return on operating experience gained with enterpises
introducing a crypto incentive in their business process.
We will explain the benefits of such an approach, and the pratical BTU
Protocol plugins needed for abstracting the blockchain complexity to
enterprise developers.

CRYPTOCURRENCY CRIME AND COMPLIANCE IN 2020 - TALK

Willem Van Den Brandeler
__

Cryptocurrencies have the reputation for being cross-border and
anonymous, and therefore attractive to bad actors across the world.
However, blockchain analysis offers unprecedented transparency into
financial transactions, providing insights into the 1.1% of
cryptocurrency transactions that were illicit in 2019.
In this talk, Willem van den Brandeler discusses our latest original
research and case studies on the crypto crime trends shaping law
enforcement and compliance in 2020.

HOW TO TALK WITH A REGULATOR? - TALK

William O'Rorke
__

Presentation of the main regulated cryptosystems (investment, gaming,
KYC/AML, etc.) and the right way to talk with the regulator, i.e. :
- how to design a regulatory strategy?
- what not to say?
- be in the head of the regulator
- strike the right balance between regulation and operation.
These tips are relevant all over the world ;)

CREATING THE FIRST MASTER'S OF BLOCKCHAIN PROJECT DESIGN IN FRANCE -
TALK

Won Kim
__

Challenges of creating an accredited Blockchain Master's program in
France including:
-accreditation requirements
-constructing a pedagogy (what are the standards for a blockchain
agnostic program?)
-dynamic nature of the blockchain ecosystem
-promoting on a shoe-string budget
-Profiles of the first class of students and their satisfaction so
far.

ARCHITECTURAL DESIGN OF INSTITUTIONAL DIGITAL CURRENCIES - TALK

Xavier Lavayssière
__

The digitalisation of financial assets is a relatively old process to
which new technologies and architectural designs offer new
perspectives. The purpose of this work is to highlight the economic
and legal consequences of various technical architectures to represent
digital currencies.

THE REFERENCE ENTERPRISE BLOCKCHAIN ARCHITECTURE, INTEGRATING WITH
PEGASYS ORCHESTRATE - TALK

Nicolas Maurice
__

I am a Tech Lead and blockchain Architect at ConsenSys, where I first
led the implementation of blockchain platforms for the account of
major actors in the finance industry before co-founding PegaSys
Orchestrate an infrastructure platform for managing Ethereum
transactions recently launched by PegaSys. I will share my experience
architecting and building blockchain platforms and detailing how we
designed PegaSys Orchestrate to make it a blockchain infrastructure
compatible with every business case and every Ethereum network.

Ethereum 2.0
__

DESIGN CHOICES IN ETH2.0 - TALK

Aditya Asgaonkar
__

The ""holy grail" of scalability (a.k.a. sharding) has presented
protocol designers with a number of tradeoffs in the design of Eth2.0.
This talk will take a look at the important tradeoffs to be made, and
how the Eth2.0 choice takes a balanced approach in the spectrum of
choices available, including those for:
- Separation of validation & consensus
- Validator set sampling
- Cross-shard transactions

CROSS-SHARD TRANSACTIONS - TALK

Aditya Asgaonkar
__

The design of cross-shard transactions have a profound impact on the
end users of a sharded system. In this talk, we will discuss the
requirements of the ideal solution. Then, we will explore the design
space of cross-shard transactions: synchronous vs. asynchronous,
protocol-delivered vs. user-delivered. We will also discuss
cross-shard contract calls and how the execution layer can interface
with cross-shard transactions.

TO BE ANNOUNCED - TALK

Alex Beregszaszi
__

ETH1 MEETS ETH2: FORECASTING THE FUTURE - TALK

Alex Stokes
__

Lots of exciting work is happening with eth2 and eth1.x. While the R&D
pushes forward, it raises an important question: how will we merge the
two systems? The ultimate goal is to migrate the economic activity
from today's chain to the new sharded system but the exact plan is
still unknown and depends on which relative pieces of each effort are
production-ready sooner.
This talk will discuss the relative timing and challenges behind the
possible options by sharing the latest research on the finality
gadget, L1 data layers, EEs and stateless clients. I aim to gather
community feedback during the Q&A section which will help me direct my
own efforts under the finality gadget working group (you can see the
latest update here at Devcon 5:
https://slideslive.c…tting-eth20-to-work __
).

INTERBLOCKCHAIN COMMUNICATION FOR ETH 2.0 - TALK

Christopher Goes
__

The interblockchain community protocol will faciliate permissionless
interoperation between smart contracts on Ethereum 1.0/1.x & Ethereum
2.0, Cosmos zones, Polkadot parachains, Bitcoin & more. The first half
of this talk presents the protocol construction, notes security
properties & consensus requirements, explains the message channel
interface exposed to smart contracts & modules, and discusses special
techniques for bridging Nakamoto proof-of-work consensus blockchains
such as Ethereum 1.0/1.x to chains with finality. The second half
embarks on a speculative exploration of how IBC can be used to
instantiate various sharding topologies, including proxy clients & a
hub-spoke model, with particular attention to integration into the
Ethereum 2 phase 2 specification process.

ETH2REAL WORKSHOP - TALK

Hsiao-Wei Wang, Carl Beekhuizen, Dankrad Feist, Diederik
“Protolambda” Loerakker
__

Ethereum Foundation research team is focusing on Eth2 research and
development. In this workshop, we will discuss some of the most
important topics on Eth2 in-depth, including the latest aspects of
protocol design, the exciting validator staking plan, and the
intriguing research and implementation problems.

LIGHTHOUSE: ROAD TO ETH2 MAINNET - TALK

Mehdi Zerouali
__

Present insights on the development of Eth2, and the road to mainnet,
with a specific focus on the Lighthouse client.
Lighthouse aims to be a leading client for Eth2, and we believe that
its development as a secure and performant piece of Ethereum
infrastructure
constitutes a public good. We would like to share our progress,
particularly with
community members intending to become validators when the network goes
live.
Some of the topics I would be covering include:
* Security-focussed features:
* Testing and correctness:
* Performance and storage optimizations
* BLS standardization/optimization/testing
* Networking improvements:
* Insights from testnets, metrics, how to get involved

VALIDATOR PRIVACY IN ETH2.0 - TALK

Mikerah Quintyne-Collins
__

An overview of the state of validator privacy in Eth2.0. The goal is
to introduce the audience to the problem of keeping validators private
and anonymous and the potential solutions as it relates to Eth2.0

LIVENESS IN CBC CASPER - TALK

Vlad Zamfir
__

PHASE2 UPDATE FROM QUILT - TALK

Will Villanueva
__

All the latest on execution environments

NAVIGATING ETH2 WITH SIMPLE SERIALIZE - TALK

Cayman Nava
__

We dive deeply into Eth2's consensus serialization and merkleization
standard, Simple Serialize (SSZ), from a theoretical and
implementation perspective. We first discuss the motivation and use of
the standard in Eth2 by example. We then analyze tradeoffs between
state-of-the-art implementations.
Audience: Eth2 implementers, blockchain developers

CRYPTOGRAPHIC PRECOMPILE EIPS WORKSHOP - WORKSHOP

Louis Guthmann & Tim Beiko
__

Abstract: In this session, we will discuss potential crypto
precompiles to be included in future Ethereum upgrades. Specifically,
we will discuss EIP-1962, a proposal to add the Eth2 deposit contract
curve, and other related EIPs.

Gaming
__

BUILDING A FREE TO PLAY TO EARN GAME - THE STORY OF AXIE INFINITY -
TALK

Aleksander Leonard Larsen
__

The story of Axie Infinity and how we leveraged NFTs to get one of the
most passionate communities in all of blockchain gaming. We are now
moving from only NFTs to other tokens and enabling a truly
player-owned economy.

METAFACTORY - DECENTRALIZING THE OWNERSHIP OF BRAND ECONOMIES AND SALE
OF CUSTOM, DIGI-PHYSICAL APPAREL - TALK

Drew Harding
__

A background on the platform conception and the goals around the
creation of brand economies, profit sharing among participants and
sale gamification of custom apparel

COLLECTIBLES, CRYPTO-GAMING, NON-FUNGIBLE TOKENS: STATE OF THE
ECONOMICS - TALK

Gauthier Zuppinger
__

Focus on the market, trends, economics and predictions for the non
fungible tokens and collectibles markets. Comparison between crypto
markets and NFT markets.

THE LIMITATION AND POTENTIAL OF BLOCKCHAIN/ETHEREUM GAME - TALK

Jay Lee
__

BLOCKCHAIN GAMING: DEAD OR ALIVE? - TALK

Matías Nisenson
__

Blockchain gaming had its peak several months ago, will it ever come
back or was it just smoke? Let's talk tech and business!

HOW ETHEREUM WILL DISTRUPT THE GAMING INDUSTRY - TALK

Morten Rongaard
__

Giving the power back to users

BUILDING A GAME FULLY ON CHAIN - TALK

Ronan Sandford
__

We'll talk about the benefit and challenges of building a game fully
on chain, using Ethernal, A Procedurally generated dungeon game, as an
example

TRUST AND TRANSPARENCY IN ONLINE GAMING - TALK

Ryan Gittleson
__

I'd like to present how p2p technology and blockchain technology can
create greater trust and transparency in online gaming. Then I'd like
to walk through a short demo of how Virtue Poker works.

EMPOWERING CREATORS WITH BLOCKCHAIN AND NON-FUNGIBLE TOKENS - TALK

Sebastien Borget
__

This talk will be about how we are leveraging Non-Fungible Tokens
(NFTs) and ERC-1155 (a new standard from which we are one of the 3
main contributors) to enable user-generated contents, with true
digital ownership and scarcity, making accessible to anyone (using
simple voxel format for the expression of creativity) and enabling
anyone to take part in the Metaverse.
The Sandbox is a decentralized, community driven platform, where
creators can make voxel assets and gaming experiences and monetize
them on the blockchain. The interests are aligned between all the
users who are contributing to it, players, creators, land owners,
curators, etc. -- enabling trading relationship, social relationship,
governance and social rules, rewards in-game and many other potential
uses.

GAME ASSETS TOKENISATION DONE RIGHT - TALK

Shaban Shaame
__

WHICH TYPE OF SMART CONTRACT SHOULD I CHOOSE FOR MY COLLECTIBLES? -
TALK

Alex Atallah
__

I've been seeing a lot of confusion over the different options for NFT
contracts. Will go over semifungible, fungible, whitelisted, and
presale ones too.

Governance / DAO
__

MARKETING ETHEREUM WITH A NEW DAO - WORKSHOP

Alex Masmejean & Manu Alzuru
__

Introducing Marketing DAO, membership & grants proposal. Getting
feedback & discussing with the community.

UNDER-COLLATERALISED LOAN ISSUANCE USING A DAO FRAMEWORK - TALK

Anastasia Andrianova
__

As the DeFi ecosystem evolves, we observe a clear bifurcation into
crypto-native models and improvements based on legacy approaches. A
reduction of the current over-collateralization margins is an
important priority in the DeFi ecosystem and has been one of the focal
points of our approach. Right now, several teams in the space,
including us, are working in this direction — with different
approaches and solutions. During this talk, we will explain how we
combine DAOs and uncollateralized loans.

A CALL FOR AN END TO TRIBALISM IN ETHEREUM - 2 YEARS LATER - TALK

Bob Summerwill
__

At the opening of ETHCC in 2018 I made an impassioned call for an end
to tribalistic behaviour within the Ethereum ecosystem. This was
intended as a first step to "clean our own house" and then for the
Ethereum community to lead the same charge across the whole of
blockchain.
Since then I have walked the walk on that call by "jumping the fence"
and becoming a leading figure in Ethereum Classic, while also
remaining part of the Ethereum ecosystem and continuing my work on
Enterprise in both EEA and HL.
I have been a strong critic of the Ethereum Foundation and Ethereum
Core Developers recently, but never of the Ethereum Project.
In this talk I will review the call to action I made in 2018, track
progress and renew my plea for broader collaboration. This is more
important than ever!

PROOF OF HUMANITY, A SYBIL-RESISTANT LIST OF HUMANS - TALK

Clément Lesaege
__

On the blockchain no one knows you're a bot.
A common problem for decentralized applications is the lack of
Sybil-resistant identity systems. Users can create multiple addresses
to create spam, bias votes or receive rewards multiple times.
We'll start by exploring applications requiring a Sybil-resistant
identity system (Universal Basic Income, quadratic funding, product
reviews). Then we'll present Proof of Humanity, a system combining
social verification with video submission in order to create a
Sybil-resistant list of humans. Finally we'll address privacy concerns
by showing how to create Sybil-resistant anonymous identities out of
Sybil-resistant public ones.

GROWING THE HERD: HOW YOU CAN CONTRIBUTE TO ETHEREUM AS A CAT HERDER -
WORKSHOP

Ethereum Cat Herders
__

In this workshop, we will give a brief overview of what the Ethereum
Cat Herders are and spend the bulk of the session gathering feedback
from the community about how the group can best serve the Ethereum
community.
We will have an open discussion about what Cat Herders initiatives
people value most, what things are missing from the Ethereum community
and how people can help address these shortcomings, either as a Cat
Herder or independently.

MAGICIANS AND BUREAUCRATS IN THE ETHEREUM GALAXY - TALK

James Pitts
__

Building on my talk from last year, I will begin with the history of
the key people and projects in the Ethereum community, and how the
institutions developed. Next, I will examine various governance and
organizational experiments, from the EF to core devs to ConsenSys,
comparing these to traditional institutions. For the last part of the
talk, I will discuss lessons learned and the principles for building
lasting institutions which can serve the community.
A lengthily dialogue with the audience will follow.

SUBJECTIVE AGREEMENTS FOR DAOS - TALK

Jorge Izquierdo
__

DAOs currently operate on completely objective rules: number of
tokens, favorable votes casted, etc. This talk will explore how we can
bring subjective agreements to DAOs and what they can unlock.
It will be a second part to my DappCon talk, updating it with our
latest research and progress made in the last 6 months:
https://www.youtube.com/watch?v=j3gK48E4h1Q __


THE FUTURE OF STAKING POOLS WITH STAKE DAO BY STAKE CAPITAL - TALK

Julien Bouteloup
__

About Stake DAO, the new for-profit DAO to aggregate delegates, giving
them governance rights and allowing them to put their staking tokens
on external #DeFi projects. Staking, the decentralized way.

TO BE ANNOUNCED - TALK

Matan Field
__

DAO ECONOMICS - BALANCE SHEET CONSIDERATIONS - TALK

Megan Knab
__

Let’s talk about constructing DAO finance. I’ll share a framework
for building DAOs from an accounting perspective. I’ve distilled
this from working with moloch forks, DAOstack and Aragon DAOs so is
translatable across platforms.

OPENETHEREUM: TRANSITIONING PARITY ETHEREUM TO THE COMMUNITY - TALK

Phil Lucsok
__

OpenEthereum is the decentralized community-driven ethereum client,
formerly known as Parity Ethereum. Run as the first major DAO for a
software project, the major client will be developed by major teams in
the Ethereum ecosystem.

MOVING TO AN EIP-CENTRIC PROCESS: A RETROSPECTIVE - TALK

Tim Beiko
__

After Istanbul, the Ethereum Core Developers agreed to move from our
previous network upgrade process to an EIP-Centric one. With Berlin
approaching, we can now reflect on the benefits and challenges brought
by this new process.
This talk will give an overview of how AllCoreDevs used to coordinate
network upgrades, what changes were implemented post-Istanbul and what
ideas have emerged to keep improving things going forward.

PERMISSIONLESS DECENTRALIZATION AND THE LAW - TALK

Vlad Zamfir
__

DAOS WITHOUT ESTABLISHED LEGAL ENTITIES ARE TOO EARLY TO BE PRACTICAL
- TALK

Yalda Mousavinia
__

Every year seems to be the “Year of the DAO”, but we may be a long
way away from creating the original vision. The term "DAO" has now
evolved to include organizations that are wrapped with a
pre-established legal entity. But the most interesting DAOs won’t
simply have a single legal entity that is driving all operations. The
most interesting ones will include multiple entities that coexist
alongside individual contributors. In my this talk, I'll present a new
model for a DAO that connects four entities on a blockchain — an
association, a Delaware C corp, a worker-owned cooperative, & a
501(c)(3) to create a multi-stakeholder ecosystem that pays it
forward: both internally, and externally.

REVENUE GENERATING DECENTRALIZED ORGANIZATIONS THROUGH BONDING CURVES,
- TALK

Zhivko Todorov
__

Deep dive into continuous organizations, incl. example of a real-world
implementation that we've developed.

BLOCKCHAIN VOTING - THE GOOD, THE BAD AND THE UGLY - TALK

Kasimir Blaser
__

In this talk we will cover theoretical concepts of traditional voting,
technical challenges on blockchain voting and analyse a customers
project and requirements.
- Various kind of voting.
- The discussions and security of e-voting
- Voting on the Blockchain
- Compare various Blockchain/smart contract voting approaches
- Voting with ERC-20 tokens. The challenges
- Voting and Interoperability with HSM and crypto banks
Audience Level: Beginner to Intermediate.

BUILDING NEW DIGITAL COMMUNITIES, COORDINATION & TOOLING - TALK

James Waugh & James Duncan
__

MetaCartel has grown from a single MolochDAO fork into a huge, open
community focused on pushing forward Ethereum Dapps.

Other Blockchains
__

LESSONS LEARNT FROM BUILDING BLOCKCHAINS - TALK

Aidan Hyman
__

In this talk, I will go over a few of the different projects we have
been working on and some of the lessons learnt.

THE GATEWAY FOR REAL-WORLD ASSETS INTO THE BLOCKCHAIN MULTIVERSE -
TALK

Cassidy Daly
__

A case study of Centrifuge Chain on the efficiencies of building a
single-purpose chain with a bridge to Ethereum. Though we are built on
and loving Ethereum, we have needs that just can’t be met with this
architecture as it exists today. Centrifuge Chain is optimized
specifically for the transactions required by the Centrifuge protocol.
We envision a larger ecosystem of many, connected blockchains- where
dApps on Ethereum could use data from other chains, value could move
freely, and Centrifuge Chain can enable off-chain assets to access
financing through DeFi projects on Ethereum.

BRIDGING NON POW/POS SIDECHAINS WITH ETHEREUM - TALK

Claudia Bartoli Duncan
__

More and more crypto projects are being designed as Ethereum
sidechains, tasked to offload heavy computational operations. However,
the interaction these sidechains have with Ethereum must hold security
guarantees which match those built from within the smart contract
platform. In this talk, we will describe our model for a bridge which
enables a trustless interaction between a reputation based sidechain
and the Ethereum mainnet.

LUKSO - THE BLOCKCHAIN FOR NEW CREATIVE ECONOMIES - TALK

Fabian Vogelsteller
__

Today most Blockchain use cases are less interesting for ordinary
users, as they are either very technical, financial focus, or too
complicated to use. With the LUKSO Blockchain we focus on creating an
ecosystem for applications that are interesting for the 1Bn people on
social media, the fashion landscape and the creative industries.

EXTENDING ATOMIC SWAPS FOR INTEROPERABILITY - TALK

Jean Yves Zie
__

This talk will about my academic paper "Extending Atomic Cross-Chain
Swaps".
Cryptocurrencies enable users to send and receive value in a
trust-less manner. Unfortunately trading the associated assets usually
happens on centralized exchange which becomes a trusted third party.
This defeats the purpose of a trust-less system. Atomic cross-chain
swaps solve this problem for exchanges of value without
intermediaries. But they require both blockchains to support Hash
locked and Time locked transactions. We propose an extension to atomic
swap for blockchains that only support multi-signatures (multisig)
transactions. This provides greater capabilities for cross-chain
communications without adding any extra trust hypothesis.

RUST SMART CONTRACTS IN COSMOS - WORKSHOP

Marko Baricevic
__

The Cosmos-SDK was purpose built for custom application built
blockchains and now there have been strides to extend this to allow
developers to run a warm VM within their Cosmos-SDK based blockchain.
Come learn about Cosmwasm a wasm VM that can be used with the
Cosmos-SDK

OVERVIEW OF MORE THAN 15 ETHEREUM-BASED BLOCKCHAINS - TALK

Peter Eulberg
__

Learn about more than 15 Ethereum-based networks, their particular
characteristics, advantages and disadvantages. There is more variety
out there than you'd imagine! To tap into the multitude of chains,
they are clustered by distinct attributes (PoW/PoS/PoA, live/test,
public/private, history/stability, native Gas token...). Some
especially noteworthy examples are covered in greater detail.
Challenge your assumptions on how things are done and possibly find
additional options for your project. Learn from others to make your
life easier as a developer and continue to advance the Ethereum
ecosystem as a whole.

TEZOS, THE BLOCKCHAIN THAT EVOLVES - WORKSHOP

Benjamin Canou
__

In the set of rules that make the Tezos blockchain protocol, the most
defining rule is the one to change this very set of rules.
In this talk, we explain by example how this works in practice and how
far this goes: what could change in Tezos in the future, and what is
set in stone (spoiler: not much).

Privacy
__

ZINC: DEVELOPER-FRIENDLY PROGRAMMING FRAMEWORK FOR ZERO-KNOWLEDGE
PROOFS - TALK

Alex Gluchowski
__

We present Zinc: a framework for constructing R1CS-based SNARK
circuits. It includes a simple, safe and efficient high-level
programming language for defining zero-knowledge circuits, and a
ZKP-friendly runtime execution environment. Zinc is designed to make
developing scalable and privacy-preserving smart contracts easy.

NYM: HOW TO DECENTRALIZE NETWORK-LEVEL PRIVACY USING CRYPTOECONOMICS -
TALK

Harry Halpin
__

Network-level anonymity is necessary for Ethereum if zero-knowledge
proof onchain constructions are to have any privacy. Mix-nets are the
obvious solution to this problem. This talk will summarize Nym's
Rust-based mix-net and how it interoperates with different chains,
including Ethereum. Mix-nets provide superior network-level protection
than Tor due to cover traffic and delays. Competing "forks" of our
original, abandoned codebase like Meson do not include parameters and
have However, there is the hard question of how to set these
parameters and how to decentralize the PKI of the mix-net, which
determines which nodes are part of the network at a given time. Using
an approach based on blockchain consensus and VRFs, will be show how
we solved the hard problem of decentralizing a mixnet.

BIG ZKSNARKS CIRCUITS FOR ZK-ROLLUPS WITH CIRCOM - TALK

Jordi Baylina
__

We are going to present the new version of circom:
- How it can be used to generate big circuits appliable in the
rollup-like structures.
- The security warranties that the language supplies.
- Discuss about some low level highly optimized finite field libraries
in Intel assembly and web assembly.
- We will also provide an update of the current development of the
iden3-zkRollup

C.R.E.A.M, ZK-SNARK BASED PROTOCOL FOR PUBLIC ELECTIONS SYSTEM” -
TALK

Kazuaki Ishiguro
__

Proposal of interface for voting using zk-SNARKs. This standard
provides a means of token transfer to effect basic anonymous voting
using zk-SNARKs. A protocol that meets this minimum requirement is
named CREAM protocol because of its anonymity and the characteristics
of the contract method.

ZK-DEX - TALK

Kevin Jeong
__

We introduce zk-DEX, which allows privacy to be guaranteed in the
process of trading Ether and tokens. zk-DEX is a private decentralized
exchange that uses zk-SNARKs during the transaction process to ensure
that the identity and volume of the traders are not revealed, and it
has been inspired by zcash and zk-Dai.
In zk-DEX, all assets are encrypted and stored in blockchain in the
form of a note, so only owner of that note can know details of note
such as the owner or amount. Also, because only the encrypted note is
used in the exchange, the third party cannot know the identity of
traders and amount in the process of order. It allows users to make
trading safely without revealing their identity even in the blockchain
where all data is public.

OVERVIEW OF ZERO KNOWLEDGE PROOFS - TALK

Laurence Kirk
__

An introduction to zero knowledge proofs, and an overview of the
latest research

SEMAPHORE : ZERO-KNOWLEDGE SIGNALING - WORKSHOP

Philippe Métais
__

Six months ago, Barry Whitehat introduced Semaphore, a general
solution for zero-knowledge signaling.
This solution manages on-chain sets of users who are allowed to
broadcast signals anonymously. For the first time, such a user may
prove on-chain that he is part of an anonymity set without revealing
his identity.
This 60-minute workshop would introduce core concepts of Semaphore
before presenting a development flow on this framework. A practical
example around voting systems would be presented. Attendees would
deploy Semaphore contracts, interact with them anonymously and even
develop their own zero-knowledge logical circuits. Binary,
multiple-choice, ranked voting : at the end of the workshop, they
should be able to implement all of these anonymous voting systems on
the Blockchain.

HOPR AS A METADATA PRIVACY FOUNDATION OF THE WEB3 - TALK

Robert Kiel
__

Short introduction why metadata and especially network-level privacy
matters in the context of web2 and web3. Followed by an overview of
the HOPR ecosystem and a brief explanation of the mechanisms on
message and payment layer. This will cover HOPRs Proof-Of-Relay scheme
as well as its payment system which is influenced by payment channels
and aggregatable probabilistic payment tickets. First demo of the
public HOPR testnet.

CRAZY DAPPS YOU CAN BUILD WITH IEXEC AND CONFIDENTIAL COMPUTING! -
TALK

Gilles Fedak
__

Confidential computing is a new paradigm that allows encrypted data to
be processed securely without being revealed at any time. Confidential
computing brings privacy to Dapps: application developers can now
provision their Dapps with users' secret information opening a wide
range of new usages and applications for their Dapps. In this talk,
we'll introduce a new example of Ethereum applications that can
leverage confidential computing.
iExec is the first decentralized marketplace for cloud computing
resources. The iExec network is made up of providers of computing
power, applications, and datasets - allowing for on-demand access to
cloud computing resources. The project has a particular focus on
trusted and confidential computing to strengthen security within
distributed networks.
We’ll introduce how the iExec SDK allows developers to easily set up
their application to be powered by a decentralized and distributed
computing network. We'll give an overview of the iExec solution for
off-chain end-to-end privacy-preserving computing.
Come along and find out how powering your application by a
decentralized and distributed network of computing nodes can be as
simple as setting up a docker image!

HOW TO BEAT SURVEILLANCE CAPITALISM AND RECLAIM YOUR PRIVACY. - TALK

Seven Waterhouse
__

Navigating blockchain’s choppy waters: Orchid recognized early on
how important it was to focus on correctly building its product,
regardless of how much time it took. Seven’s decades of experience
in building (and performing due diligence on) startups allowed him to
navigate the busts and booms of the industry, holding a steady course,
rather than continuously introducing new strategies. Seven points to
several key moments of foresight in those years that helped drive the
company to success. Key moments for the company included selecting
business partners that share the same long term vision, and a
commitment to the Ethereum network and building vertically on Layer 2
rather than creating competing infrastructure.

INTRODUCING GNARK, A FAST ZERO KNOWLEDGE PROOF LIBRARY - TALK

Thomas Piellard
__

Presentation of an efficient implementation of the Groth16 protocol in
pure Go.

INTEGRATION OF THE SAPLING PROTOCOL IN TEZOS - TALK

Marc Beunardeau
__

The Sapling protocol developed by the Electronic coin company (creator
of the Z-cash blockchain) realizes privacy preserving transactions for
fungible tokens.
In this talk, after a brief introduction of Sapling, we will discuss
the integration of such a protocol in a different blockchain (Tezos),
its challenges, design choices, and usage of Tezos's on chain
governing mechanism.

NON-CUSTODIAL PRIVACY SOLUTION FOR ETHEREUM - WORKSHOP

Roman Semenov & Alexey Pertsev
__

A brief overview of existing privacy solutions on Ethereum and other
blockchains. A deeper explanation of how Tornado.cash works under the
hood with Live Demo and privacy tips. Our plans and future of privacy
on Ethereum.

ZEROPOOL - PRIVACY POOL ON ETHEREUM WITH ZK - TALK

Kozlov Nikita
__

A brief description of new solution for Ethereum that allows to make
private UTXO transactions with optimized gas fees and atomic swaps.

SNARK-LED PRIVACY ON ETHEREUM - TALK

Zac Williamson
__

We explore how SNARKs are being used to bring fast privacy to
Ethereum, and explain the huge advances made in 2019.

Scalability
__

ZK SYNC: USER-CENTRIC APPROACH TO SCALABILITY WITH ZERO-KNOWLEDGE
PROOFS - TALK

Alex Gluchowski
__

ZKP-based approach to blockchain scalability not only offers highest
security, but can also significantly improve usability compared to
other scaling methods. In this talk we will dive into ZK Sync design
that was tailored to take maximum advantage of both aspects.

TURBO-GETH AND STATELESS ETHEREUM - TALK

Alexey Akhunov
__

Main differences between Turbo-Geth and Geth, some recent data from
Stateless Ethereum prototype (based on Turbo-Geth)

STATE OF ROLLUPS - TALK

Chellani Vaibhav
__

- Different rollup designs
- Different tradeoffs for both
- Which one to use for your application
- pros and cons of rollups
- Comparison with other scalability techniques

THE STATE OF STARK TOOLING - TALK

Eli Ben Sasson
__

TBD - TALK

Franziska Heintel
__

TBD

DECENTRALIZED WORKLOAD DISTRIBUTION WITH VRFS AND ALGORITHMIC
REPUTATION SYSTEMS - TALK

Gorka Irazoqui & Mario Cao
__

Scalability lies at the core of every new sidechain design. However,
effective work distribution among a decentralized subset of peers can
be challenging without proper selection mechanisms that avoid
oligarchy generation and, targeted attacks.We will explain how these
could be achieved through a combination of cryptographic sortition,
Verifiable Random Functions (VRFs) and an algorithmic reputation
system. When VRFs are combined with a proper reputation system, the
eligibility of each peer can be defined by its previous actions; the
better it behaves, the more likely it will be to become eligible (and
thus, rewarded). We discuss the properties that such a system can
achieve and the reasons why it can be ideal for Decentralized Oracle
Networks.

SCALING ETHEREUM 1.X WITH WASM PRECOMPILES - TALK

Guillaume Ballet
__

In this talk, I will present how WASM precompiles can be leveraged to
solve a lot of the scalability issues afflicting Ethereum 1.x. It will
expand on my Devcon talk https://www.youtube.com/watch?v=ez4W9-byCnM
__ by detailing a Dapp
development paradigm that alleviates the burden of eth 1 clients, and
paves the way for Eth2.

HANDS ON WITH RAIDEN AND THE RAIDEN LIGHT CLIENT - WORKSHOP

Jacob Czepluch & Kelsos Paparas
__

In this workshop, we’ll provide you with our latest tools to make
Raiden’s usage an easy and fun experience for users/developers:
- We will give you a brief overview of how Raiden works and provide
you with everything needed to get started quickly.
-We’ll guide you through the resources of the new developer portal.
- Open channels and send payments with Raiden using mobile phone or
browser only
- Receive payments by getting your own full Raiden node with just a
few clicks.
The workshop will not only be relevant for projects planning on
integrating their Dapps with Raiden, but also to any Ethereum
developer looking to learn and experience more about Ethereum scaling
possibilities via payment channel networks.

OPTIMISTIC VIRTUAL MACHINE: FULL ETHEREUM SMART CONTRACTS WITH
OPTIMISTIC ROLLUP - TALK

Karl Floersch
__

RUNNING EVM ON SIDECHAINS: FIVE INNOVATIONS - TALK

Konstantin Kladko
__

EVM Sidechains are decentralized ETH-compatible blockchains that can
be used by DApps to speed up computation and transactions. Since
sidechains are faster and cheaper than the ETH mainnet, sidechains can
serve as a foundation for decentralized cloud. I am going to review
five sidechain innovations that SKALE sidechains implement: storage,
asynchronous Proof-of-Stake consensus, ETH-compatibility, interchain
messaging/money transfer, virtual chains and decentralized linearly
scaleable network

FUEL - A TRUSTLESS SCALABLE SIDECHAIN - TALK

John Adler
__

Fuel is a groundbreaking blockchain based technology focused on
Visa-level high-throughput, low-latency, low-cost, trustless,
non-custodial, no-chargeback digital currency transactions. By using a
new transaction compression technique we (Fuel Labs) discovered
“optimistic rollups”. In our talk we will present the technical
specifics of Fuel, optimistic rollups and what the future of layer-2
holds for Ethereum and beyond.

STATELESS ETHEREUM - TALK

Piper Merriam
__

I'll be sharing the latest research, current progress, and general
roadmap from the Ethereum 1.x research into stateless clients. This is
a cross team/organization effort to address scalability issues with
the mainnet Ethereum network while fostering greater client diversity
and paving the way for the migration of Eth1.x into Eth2.0.

SCALING STORAGE WITH FOUNTAIN CODES - TALK

Silur
__

We review SeF, and see how fountain codes can achieve major storage
savings even with byzantine nodes in mind

EVM BYTECODE MERKLIZATION - TALK

Sina Mahmoodi
__

To reduce block witness sizes for a stateless Eth1.x, we analyze a
change in which contract code is broken into chunks and a Merkle tree
is generated from it. With every stateless block, instead of sending
the whole code, we will only send the touched code chunks along with
validity proofs. Early data suggests this could reduce the total
amount of code sent in a block by 40-60%.

OPTIMISTIC VS ZK ROLLUP - TALK

Vaibhav Chellani
__

Having worked on both
optimistic(https://github.com/vaibhavchellani/BOPR-contracts __
) and
zkRollups(https://github.com/v…i/RollupNC_tutorial __
) I want to
bring to attention to the community the various pros and cons of these
approaches and help them innovate on these constructions, I will talk
about different things like withdrawing times, censorship resistance,
etc.

CRASH COURSE IN POLYNOMIAL COMMITMENTS - TALK

Justin Drake
__

Polynomial commitments are the key cryptographic building block for
universal SNARKs. We will give an overview of the different types of
polynomial commitments, how they are built, and how polynomial
commitments can be used to build SNARKs.

TO BE ANNOUNCED - TALK

Adrian Brink
__

REMOVING STATE FROM ETHEREUM LAYER 1 TO ENABLE RICH DAPPS LIKE PEPO -
TALK

Benjamin Bollen
__

Rich content dApps require more statefulness than Ethereum1 can
provide, prunable and at lower price points. Such state benefits both
content and smart contract wallets for user experience. 'Mosaic'
introduces (on Ethereum1) a second layer proof-of-stake consensus to
asynchronously update injected state tries which can finalise state
transitions in parallel to the main chain. We discuss the
architecture, data availability, validator token incentives and the
upcoming testnet generations.

OFF-THE-CHAIN TRANSACTIONS: UNDERSTANDING THE LAYER 2 LANDSCAPE - TALK

Guillaume Felley
__

This presentation tackles the summarization of knowledge paper:
Off-the-chain transactions (https://eprint.iacr.org/2019/360.pdf __
), a joint work among several
leading university researchers that aims at laying the foundation to
better study and compare off-chain scalability solutions.
Most of us might have heard of Payment Channels, Plasma, State
Channel, NOCUST, Side-chain, Commit-chain, Rollup, and others. The
many constructions, names, and notations about off-chain constructions
have unfortunately brought a lot of confusion to the community. It is
difficult to capture the different trade-offs taken by each solution.
Therefore, there is a need to better explain and define the high-level
properties of each of these solutions.

BUILDING EFFECTIVE TRUSTLESS NETWORKS ON ETHEREUM - TALK

Chadwick Strange
__

This talk will provide an overview of methods used to orchestrate PoS
trustless networks by leveraging security models provided by Ethereum.
In particular, the talk will demonstrate SKALE Manager, a set of
Ethereum smart contracts that facilitate SKALE network operations and
security, including SKALE chain creation, delegation and validator
registration, and distributed key generation for BLS threshold
signatures.

Security
__

THE NUTS, BOLTS AND IMPOSSIBILITY OF TRUSTLESS CROSS-CHAIN
COMMUNICATION - TALK

Alexei Zamyatin
__

With the increasing number of blockchains, differing in design and
purpose, it is unlikely that there shall emerge "one chain to rule
them all". As such, cross-chain communication has become as a major
challenge in blockchain research - fundamental as it is to
cryptocurrency exchanges, sharding, bootstrapping and extension of
blockchains.
We overview and show why cross-chain communication requires a trusted
third party (same as the Fair Exchange problem!), and present ways
around this theoretic problem: leverage incentives, the principles
which made Bitcoin work in practice. Collateralized intermediaries
combined with state verification (SPV) or validation (NIZKP and fraud
proofs) allow to prevent financial damage to users. See our paper for
more: https://eprint.iacr.org/2019/1128.pdf __


FUZZING THE SOLIDITY COMPILER - TALK

Bhargava Shastry
__

"Since the Solidity programming language does not have a formal
specification, testing the compiler implementation is an important way
to obtain assurance about the correctness of code generated by the
compiler.
The approach adopted by us is to define a grammar for the Solidity
programming language and automatically generate inputs based on this
grammar. Grammar based fuzzing ensures that generated programs are
successfully parsed by the front-end parser. We make use of
libProtobuf and libProtobufMutator for defining the grammar and
performing grammar-based mutations, and libFuzzer as the underlying
fuzzing engine."

PREVENTING DISASTER: ADVANCES IN SMART CONTRACT VULNERABILITY
DETECTION - TALK

Bernhard Mueller
__

What do the DAO, Parity MultiSig wallet and Beautychain have in
common? 1. All three were hacked with disastrous consequences, 2. In
each case, the bugs could have easily been spotted in advance using
automated analysis techniques. In this talk, we'll investigate the
above exploits in depth and show how to use a combination of
multi-transactional symbolic execution, taint analysis and greybox
fuzzing to detect similar bugs with high accuracy and a low false
positive rate. We'll also introduce optimization tricks that enable
fast detection of "deep" vulnerabilities - exploit conditions that are
triggered over a longer sequence of highly specific transactions.
Finally, we'll show how developers can apply these security analysis
methods to their own contracts using MythX and Mythril.

HOW WE THINK ABOUT STORING CRYPTO IS BROKEN - TALK

Cameron Robertson
__

The original sin of cryptocurrency is not transaction speed, poor
anonymity, volatility or a high Gini coefficient -- it's a digital
format which is confusing to use, easily delegated to centralized
exchanges and, most importantly, reliant on multiple layers of
software and hardware trust. What if instead Bitcoin and Ethereum were
like cash, a physical format that billions of people are intimately
familiar with? To achieve a viable physical cryptocurrency, however,
we need radically different hardware with cryptographically-secured
guarantees of their face value and uniqueness anchored in silicon.

WEB APPS VS SMART CONTRACTS: TOOLS, VULNS AND STANDARDS. INSTRODUCTION
OF SCSVS. - TALK

Damian Rusinek
__

I want to focus on the whole process of security testing and present
it by analogies to the web applications which are quite well-known. I
am going to cover the whole SDLC and show the similarities and
differences in the arsenal of vulnerabilities, security tools and
standards between the smart contracts and web applications on each
step.
I think that, even though there exist a lot of great security projects
for smart contracts, we do not have single, widely accepted security
standard (such as ASVS in web apps world). That is why I am going to
introduce SCSVS (Smart Contract Security Verification Standard), a
open-source 13-part checklist created to standardize the security of
smart contracts for developers, architects, security reviewers and
vendors.

SECURING SMART CONTRACTS WITH CRYTIC - TALK

Dan Guido
__

This talk will present Crytic (crytic.io), a GitHub App that
continuously assures Ethereum smart contracts are safe and functional.
It reports build status on every commit and runs a suite of security
analyses so you get immediate security feedback.
Crytic is built on the code analyzers from Trail of Bits. It runs the
Slither static analyzer to detect the most common smart contract
vulnerabilities, checks custom security properties with the Echidna
fuzzer, and reviews the safety of upgradeable contracts. Crytic also
includes visualization tools that make it easy for developers and
users alike to understand smart contracts.
Attendees will learn how the underlying tools in Crytic work, how to
use Crytic to secure their contracts, and how to integrate its safety
checks into development.

ETHER WARS EXPLOITS COUNTER EXPLOITS AND HONEYPOTS - TALK

Daniel Luca
__

In this talk I will introduce Karl, an Ethereum blockchain monitor and
Theo an exploit framework for Ethereum; both open source.
The game-theoretic consequences of having these kinds of tools and
honeypots on the network is examined. What if multiple bots compete
for exploiting the same contracts? What about honeypots that
counter-exploit bots? Is it possible to cheat honeypots? Can you build
un-cheatable honeypots?

BLOCKCHAIN SECURITY 101 FOR THE VC TRACK - TALK

Gonçalo Sá & Brianna Montgomery
__

20 min talk on blockchain security 101, the importance of looking for
companies (and or providing funding to companies) to go through full
security audits and work with notable security firms, before it's too
late (DAO Hack, Parity Hack, etc). & how to avoid these pitfalls and
red flags in development lifecycle

THE CASE AGAINST USING TEES IN YOUR CRYPTO PROJECT - TALK

Gorka Irazoqui
__

TEEs are isolated units of hardware that ensure code is executed as
expected, without the risk of a malicious OS tampering with - or
snooping on - the data. As such, some argue they are vital when
dealing with confidential data and/or generating hardware-based random
numbers.
In this talk we will explain how the aforementioned assumption is only
true when we ignore a wide range of hardware attacks. We will present
how side channel and transient execution attacks nullify this
assumption, by extracting information operated by enclaves. We will
also discuss specific vulnerabilities faced by various TEEs, and note
that some of them remain unpatched today. We will conclude by
explaining the implications that these attacks might have on current
well-known crypto projects in the community.

SHARDED SECURITY MODEL OF POLKADOT - TALK

Joe Petrowski
__

How Polkadot provides security, validity, and availability with as low
as 10 validators per shard.

SECURELY CONNECTING SMART CONTRACTS TO OFF-CHAIN DATA AND EVENTS -
TALK

Johann Eid
__

For smart contracts to achieve mass adoption, they need the ability to
securely connect to external off-chain data and existing
non-blockchain systems. The reliability with which smart contracts
connect to key external systems determines their overall security.
This critical security factor determines whether smart contracts will
be used to secure the many forms of value beyond tokenization, such as
prediction market outcomes, insurance payouts, trade finance, and
more.
In this talk, we’ll examine what makes a secure oracle mechanism
reliable enough to be trusted by smart contracts for external data
delivery, access web APIs, and off-chain payments.

MUTATION TESTING FOR SMART CONTRACTS - TALK

Joran Honig
__

In september I published some research on mutation testing for smart
contracts. With this paper I also released an open source mutation
testing tool:
https://github.com/JoranHonig/vertigo __

Which has seen a few improvements since it's initial release (and
probably will see a few more before EthCC)

In this talk I would like to discuss some of the theory of mutation
testing.
As well as some of the more technical and practical challenges and
aspects of mutation testing when applied to smart contracts.
https://medium.com/s…esting-d6512dc702b0 __

^ this is an article I wrote on medium about mutation testing.
After the talk my aim is that people will be able to apply mutation
testing in their development workflow to keep their smart contracts
safe.

REVERSING EWASM CONTRACT 101 - WORKSHOP

Patrick Ventuzelo
__

In this workshop, I will first introduce WebAssembly concepts and
eWasm opcodes/instructions. Secondly, I will show how to create eWasm
smart contract and expose different techniques/tools to perform
WebAssembly module closed-source analysis. Finally, we will hands-on
with basic examples and challenges (crackmes) to apply reverse
engineering of those contracts and understand the logic.

ETHEREUM FLAVORED PACKAGES - TALK

Philipp Langhans
__

Package signing works and is a great tool every developer should know!
However, when package/code signing is not mandatory there is no
incentive to go this "extra mile" which opens large attack surfaces
and creates vulnerable software systems.
In this talk we will present "Ethpkg" - a package manager with
built-in ECDSA capabilities. We will demonstrate how the same
signature schemes that power the Ethereum network can be used to sign
arbitrary packages and containers for large amounts of heterogeneous
data such as blockchain state, software code and metadata.
We will discuss how cryptoeconomic principles are used to incentivize
this extra layer of security and how signed packages create
zero-config donation systems and help enable continuous software
funding for open source.

ERC20 MISBEHAVIORS - TALK

Sergii Kravchenko
__

ERC20 are the most popular tokens designed and used solely on the
Ethereum platform but they do not come without limitations or
misbehaviors. During this talk, a security auditor will discuss the
ends and outs of ERC20 tokens and what to look out for when using
them.

TRANSPARENT DISHONESTY: FRONT-RUNNING ATTACKS ON BLOCKCHAIN - TALK

Shayan Eskandari
__

This talk will be based on a published paper on the subject, here's
the abstract of the paper:
We consider front-running to be a course of action where an entity
benefits from prior access to privileged market information about
upcoming transactions and trades. Front-running has been an issue in
financial instrument markets since the 1970s. With the advent of the
blockchain technology, front-running has resurfaced in new forms we
explore here, instigated by blockchains decentralized and transparent
nature. In this paper, we draw from a scattered body of knowledge and
instances of front-running across the top 25 most active decentral
applications (DApps) deployed on Ethereum blockchain. Finally, we map
the proposed solutions to front-running into useful categories.

PERPETUAL POWERS OF TAU ON SGX: A COMMUNITY ZK-SNARKS TRUSTED SETUP IN
TEE - TALK

Eduardo Antuña Diez
__

The Ethereum community has recently launched a multi-party trusted
setup called Perpetual Powers of Tau Ceremony, based on zk-SNARKs.
zk-Snark trusted setups generate “toxic waste” - data that could
allow an attacker to fake proofs - and the Perpetual Powers of Tau
Ceremony attempts to mitigate this by allowing participants to perform
a trusted MPC setup. If just one of the participants has been honest
and destroyed the toxic waste, the setup can be considered secure.
But… what if the trusted setup could be generated inside a Trusted
Enclave where not even the agent generating the proof could have
access to? That would enhance the security of the ceremony by orders
of magnitude

BROKEN METRE: ATTACKING RESOURCE METERING IN EVM - TALK

Daniel Perez
__

We present a new type of DoS attack we call Resource Exhaustion
Attack, which uses imperfections of the EVM gas pricing to generate
low-throughput contracts. Using this method, we show that we are able
to generate contracts with a throughput on average 50 times slower
than typical contracts. We show that all major Ethereum clients are
currently vulnerable. Such malicious contracts can be used to prevent
nodes with lower hardware capacity from participating in the network,
thereby artificially reducing the level of decentralization the
network can deliver.

IS IT STILL IMMUTABLE IN THE CONTEXT ON CREATE2 - TALK

Jaye Harrill, Martinet Lee
__

This talk speaks about the nature of immutability in the context of
the new EVM opcode CREATE2, introduced in the constantinople update.
This opcode opens up a number of options affecting the lifecycle of a
smart contract. It also open new techniques for ensuring their
security. However it changes the scope of immutability as we currently
understand it, especially at the user app layer.

Web3
__

TOWARDS PEER-TO-PEER ALTERNATIVES FOR CODE COLLABORATION - TALK

Abbey Titcomb
__

Radicle is a peer-to-peer network for code collaboration. It's a
decentralized collaboration environment that’s designed to be
offline-first, peer-to-peer, cryptographically secure, programmable,
and interoperable & open.
This talk will walk the audience through the Radicle protocol and
touch on the design approach of the Radicle stack. It will outline the
project's next steps and explore our blockchain components &
integrations. Radicle (http://radicle.xyz/ __ )
is a free and open source project supported by Monadic
(https://monadic.xyz/ __ ).

MAKING WEB3 REAL WITH BRAVE - TALK

Ben Livshits
__

I will talk about some major strides we have been making to bring Web3
to the masses. Brave browser has over 8M regular users now, with
various crypto functionality within it being used increasingly more. I
will talk about some use cases which provide a deep connection between
the existing Web2 infrastructure and Web3.

BLOCKCHAIN NAME SERVICE - TALK

Christopher Shen
__

How Blockchain Name Service is improving the user experience of
blockchain technology.

FROM WHISPER TO WAKU - TALK

Dean Eigenman & Oskar Thoren
__

THE ETHEREUM COMMUNITY IN 2020 - TALK

Evan Van Ness
__

ADD CONFIDENTIAL USER TO USER COMMUNICATION IN YOUR DAPP - WORKSHOP

Joel Oed
__

Most dapps are way to focused on only smart contract interaction. In
this workshop you will learn how to use 3box tools to make your dapp
more engaging and interactive by allowing your users to communicate
confidentially.

MONETIZING THROUGH MEMBERSHIP, RATHER THAN ATTENTION - TALK

Julien Genestoux
__

It's 2020 and we're still using attention as the core metric for
monetization online. This is now obviously a mistake. In this
presentation I'll be showing that we're moving toward membership for
monetization, why this is good and how ethereum can make this better!

DEVELOP FASTER AND ACQUIRE MORE USERS USING UNIVERSAL LOGINS -
WORKSHOP

Marek Kirejczyk
__

How to quickly use the Universal Login SDK to build apps with better
retention rate, so you don't need to worry about onboarding and can
focus on building the killer app you want to build

DECENTRALIZED APPLICATION AND DEVICES WITH ALEPH.IM AND ETHEREUM -
TALK

Moshe Malawach
__

Our modern web is made of silos, be it for social network, cloud
services, IoT devices provider.
We will explain how we are building a decentralized web infrastructure
that can withstand huge loads with the aleph.im project and how it can
be used to break those silos.
You can play with a decentralized cloud storage dApp yourself there:
https://my-beta.aleph.im __ (do it! it
takes a few minutes only)
Our network is currently compatible and connected to NULS, Ethereum
and Binance Chain. Other chains are being implemented.

TYPE-SAFE SMART CONTRACT INTERACTIONS FROM RUST - WORKSHOP

Nicholas Rodrigues Lordello
__

The How and Why of using Rust metaprogramming features to generate
type-safe bindings to smart contracts and facilitate development of
dApps.

ETHERS.JS - A COMPACT, SIMPLE AND COMPLETE ETHEREUM LIBRARY - TALK

Richard Moore
__

An overview of ethers.js.

MONETIZING BROWSING DATA WITH SWASH - TALK

Shiv Malik
__

Swash is the world's first data union. Built by developers based out
of Turkey, the Swash browser extension makes it possible for
individuals to aggregate their search, Facebook Twitter and Amazon
data in a way that respects privacy, and then enables users to have
their data sold on a decentralized data marketplace. Several other
types of data unions (including mobile apps) are being built on the
Streamr, a platform which provides the raw infrastructure needed for
individuals to collectively monetize their data. So what does this
innovation mean for the future of data and privacy?
The interests of data dignity, an open society, and financial equity,
are best balanced through individuals claiming property rights over
their data as part of a professionally run collective.

COMMUNITY BUILDING AND CRYPTO INCENTIVES - WORKSHOP

Simona Pop
__

Practical examples of how education and coordinated community
engagement can turbo charge adoption

AMPLIFYING THE WEB3 MOVEMENT - TALK

Julien Béranger
__

Web3 as a movement is about building a better Internet. We want it to
be open source, verifiable, (truly) decentralized and respectful of
users' privacy. The Ethereum community is playing a key role at
solving these issues, but a vast majority of people don't seem
interested in the crazy apps, services and infrastructure projects
we're building. How can we get sexy in the eyes of people outside of
the crypto space? In this talk, I will share some thoughts about 'Web3
marketing' best practices, give a few tips on how to set a relevant
comms strategy (https://strat.cc __ ), and make a
special announcement about a DAO we're implementing for a major
institutional partner.

ON-CHAIN UPGRADES FOR INCREMENTAL EVOLUTION OF PUBLIC DECENTRALISED
BLOCKCHAINS - TALK

Adrian Brink
__

The talk focuses on the future evolution of public blockchains.
Currently most blockchains are launched and then their
design/economics/... are set in stone. However it is highly unlikely
that the early versions of blockchains already have hit product/market
fit. Newer blockchains such as Tezos, Polkadot and to some extent
Cosmos have build-in mechanism to decide upon and implement upgrades.
However a large remaining question is whether governance systems are
willing to move fast enough and if they are willing to pay for the
development to happen. This talk will explore everything around
incremental evolution of public blockchains in order to get to the
point where they solve real world issues.

THE ETHEREUM FOUNDATION'S ECOSYSTEM SUPPORT PROGRAM: A LOOK AT HOW IT
WORKS TO SERVE THE ETHEREUM COMMUNITY - TALK

Ken Ng
__

The Ethereum Foundation's grants program was re-christened 'Ecosystem
Support' exactly one year ago. Ken will be digging into the who, what,
and how of Ecosystem Support, discussing the types of support we've
given in the past year since our launch, and pulling some example
cases from our past grantees. We'll end with a quick Q&A session.

PAN EUROPEAN AND GLOBAL PROBLEM OF INTIMIDATION AND OPPRESSION - TALK

John Shipton
__

Pan European and Global problem of intimidation and oppression of
journalists, publication and publishers by judicial abduction through
extradition processes
And collapse of human rights treaty obligations

French Track
__

INTRODUCTION :LA BLOCKCHAIN AUJOURD'HUI ET SES PERSPECTIVES POUR
DEMAIN - TALK

Simon Polrot
__

La blockchain et les actifs numériques ne sont plus des sujets
entièrement vierges, mais ils ont encore leur part de mystère.
L’évolution rapide des technologies et des usages rend une vision
d’ensemble difficile. Nous avons souhaité, dans le cadre de cette
conférence réunissant les cas d’usages les plus innovants de
l’écosystème, apporter un éclairage global sur cette industrie et
son avenir, à destination du public francophone.
Dans cette série d’interventions exclusivement en français, nous
explorerons les futurs développements de l’industrie des
crypto-actifs au travers de ses trois thèmes les plus porteurs
aujourd’hui : la finance décentralisée, les objets numériques
individualisés (non-fongibles) et les organisations collectives sur
blockchain (DAOs).
Au travers, d’une part, une exploration synthétique de ces cas
d’usage et, d’autre part, d’une introduction et mise en
perspective, nous explorerons l’avenir de cette industrie naissante
et notamment de sa place et de son rôle en France et en Europe.
Cette série d’interventions s’adresse à un large public
(utilisateur, investisseur, politique, développeur ou simple curieux)
et elle pourra utilement servir d'introduction aux nombreuses
interventions de la conférence EthCC.

LA FINANCE DÉCENTRALISÉE : VERS UNE NOUVELLE FINANCE PLUS
TRANSPARENTE - TALK

Brice Berdah, Mounir Benchelmed, Arthur Micoulet
__

La finance décentralisée (DeFi – Decentralised Finance) a émergé
au cours des deux dernières années grâce aux nombreux
développements réalisés sur la blockchain Ethereum. Des
entrepreneurs du monde entier créent un nouveau système financier,
en s’appuyant sur les possibilités offertes par les blockchains.
Transparence, ouverture, traçabilité et fiabilité sont les
principes de base de cette nouvelle finance. Aujourd’hui, des
individus du monde entier s’échangent des tokens, se prêtent de
l’argent sans avoir besoin d’intermédiaires ou encore
s’échangent des actifs représentant des biens tangibles (monnaie
fiduciaire, or, propriétés, parts dans une société, etc.).

ORGANISATION COLLECTIVE SUR BLOCKCHAIN : QUE FAIRE AVEC UNE DAO EN
2020 ? - TALK

Philippe Honigman, Jenna Zenk, Alex Masmejean, Louis Giraux, Kris
Decoodt
__

Tour d’horizon des actifs uniques ou tokens non-fongibles (NFT). A
la différence d’un bitcoin où d’un ether, qui sont
interchangeables, les NFT sont des actifs uniques. Seront exposés les
tenants et les aboutissants de ce type de tokens dont les qualités
permettent de créer une forme d’unicité digitale et par
conséquent, une forme de rareté. Au programme: un état des lieux
des cas d’usages potentiels et concrets à travers des secteurs tels
que le Gaming, le Luxe, la Mode et la Supply Chain et enfin des
potentielles limitations et développements futurs.

LE POTENTIEL DES ACTIFS UNIQUES OU TOKENS NON-FONGIBLES (NFT) - TALK

Nathan Sexer, Nicolas Julia, Pierre-Nicolas Hurstel, Nicolas Pouard
__

La blockchain et les actifs numériques ne sont plus des sujets
entièrement vierges, mais ils ont encore leur part de mystère.
L’évolution rapide des technologies et des usages rend une vision
d’ensemble difficile. Nous avons souhaité, dans le cadre de cette
conférence réunissant les cas d’usages les plus innovants de
l’écosystème, apporter un éclairage global sur cette industrie et
son avenir, à destination du public francophone.
Dans cette série d’interventions exclusivement en français, nous
explorerons les futurs développements de l’industrie des
crypto-actifs au travers de ses trois thèmes les plus porteurs
aujourd’hui : la finance décentralisée, les objets numériques
individualisés (non-fongibles) et les organisations collectives sur
blockchain (DAOs).
Au travers, d’une part, une exploration synthétique de ces cas
d’usage et, d’autre part, d’une introduction et mise en
perspective, nous explorerons l’avenir de cette industrie naissante
et notamment de sa place et de son rôle en France et en Europe.
Cette série d’interventions s’adresse à un large public
(utilisateur, investisseur, politique, développeur ou simple curieux)
et elle pourra utilement servir d'introduction aux nombreuses
interventions de la conférence EthCC.

CONCLUSION : CONCLUSION : LA FRANCE ET LA BLOCKCHAIN - TALK

Simon Polrot, Alexandre Statchenko, William O’Rorke
__

Sharing and transmitting knowledge
At Ethereum France, we believe that sharing and transmitting knowledge
is the most efficient way to develop a positive and fertile ecosystem.
For this reason, EthCC covers many different subjects and addresses
different levels of comprehension of the blockchain technology,
through conferences and workshops.



by the community, for the community
EthCC is first and foremost an event by the community, for the
community. Being non-profit, we keep the prices as low as possible. We
are transparent on our budget

and any extra profit will be redistributed in the ecosystem.
Volunteering and Students
We wish to welcome for free as many students as possible! If you are a
student in France, you can have a free access to EthCC by becoming
a volunteer!.Sorry guys! We have already all volunteers registered and
can't accept anymore. If you are an international student, you can
apply to get free tickets through this form!


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ABOUT US

Ethereum France (formerly ASSETH), is a French non-profit organization
mainstreaming blockchain and Ethereum in all French-speaking countries
so that everyone can assume ownership of this technology.

LINKS

* Ethereum France

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