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Epicenter Media Ltd.
Epicenter brings you in-depth conversations about the technical, economic and social implications of cryptocurrencies and blockchain technologies. Every week, we interview business leaders, engineers academics and entrepreneurs, and bring you a diverse spectrum of opinions and points of view.
Epicenter is hosted by Sebastien Couture, Brian Fabian Crain, Friederike Ernst, Meher Roy and Felix Lutsch. Since 2014, our episodes have been downloaded over 8 million times.
Epicenter is hosted by Sebastien Couture, Brian Fabian Crain, Friederike Ernst, Meher Roy and Felix Lutsch. Since 2014, our episodes have been downloaded over 8 million times.
Episodes
Mentioned books

Apr 23, 2019 • 1h 21min
Griff Green: Giveth – Creating the New Economic Model of Giving
We're joined by Griff Green, one of the founders at Giveth. The organization, which emerged out of the ashes of the DAO, aims to create a better model for charitable work. Operating as a Dapp, Giveth aims to bring new governance models in the nonprofit space. The goal is to create better incentives for donors and charity workers, in all types of social good projects.
Topics covered in this episode:
Griff's background as a gold-hodling digital nomad
His time spent at Slock.it and his involvement in the aftermath of the DAO collapse
How traditional charity organizations work
The problems these organizations face and how funds get allocated
The Giveth backstory and why the team chose to start the project
Incentive alignment in the charity space
The use of bonding curves and continuous organizations to fund charity projects
The project's roadmap and future
Episode links:
Giveth website
Rewriting the Story of Human Collaboration
Griff's talk at EthCC
Crowdfunding the Commons
The Future of Giving is Crowdfunding the Commons
Deep Dive: Augmented Bonding Curves
Episode 282 with Simon de la Rouviere
The Giveth blog
Giveth on GitHub
Join the Giveth community
Sponsors:
Azure: Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks - http://aka.ms/epicenter
This episode is hosted by Sebastien Couture & Sunny Aggarwal. Show notes and listening options: epicenter.tv/284

Apr 16, 2019 • 1h 13min
Yaniv Tal: The Graph – A Marketplace for Web3 Data Indexes Based on GraphQL
At the core of the Web 2.0 stack lies the REST API. It's the fiber which allows frontend applications to communicate with their backend counterparts, as well as the services on which they depend. But the API model is highly constrained and inflexible. The API is divorced from the data model, which creates a number of restrictions and inefficiencies. Most blockchain clients, including Geth, Parity and Bitcoin Core, use a JSON-RPC model which suffers from similar issues. Several Ethereum DApps maintain high-availability, centralized data indexes which sit between the client and the blockchain. Thought user experience is greatly improved, the practice means most of the ecosystem relies on centralized infrastructure.
We're joined by Yaniv Tal, Project Lead at The Graph. The project aims to create a scalable marketplace of robust and high-availability blockchain data indexes. Relying on the modern GraphQL data query language initially developed by Facebook, The Graph allows developers to make complex queries to a robust and high-availability data infrastructure. Launched as a hosted service earlier this year, The Graph plans to move to a decentralized model in the future.
Topics covered in this episode:
The vision of The Graph and why the team chose to work on this problem
The REST API client-server model in the Web 2.0 paradigm
The state of the Ethereum ecosystem and the challenges relating to data availability
How DApps work behind the scenes and their backend infrastructure
GraphQL as the evolution of the API model
How The Graph addresses the issue of data querying and availability
Their hosted services and plans to move to a hybrid model
How The Graph addresses privacy and scalability
The incentive mechanisms and economics related to data integrity
Early applications and the project's near-term roadmap
Episode links:
The Graph - A Query Protocol for Blockchains
The Graph on Medium
Browse and Explore Subgraphs
Graph Docs
GraphQL Will Power the Decentralized Web
The Graph’s Research and Specifications are Now Open Source
Our Investment In The Graph - Multicoin Capital
GraphQL
Yaniv Tal on Twitter
Sponsors:
Cosmos: Join the most interoperable ecosystem of connected blockchains - http://cosmos.network/epicenter
This episode is hosted by Brian Fabian Crain & Sebastien Couture. Show notes and listening options: epicenter.tv/283

Apr 10, 2019 • 1h 22min
Simon de la Rouviere: Bonding Curves, Curation Markets, Token Curated Registries… and Art
Human beings have a penchant for creating lists. We make lists for things like the top music artists at any given time, the best restaurants in the world, companies which people can trust, and the most wanted criminals. Lists take many forms. They can be maintained by a single authority, or curated by a crowd. But almost always, they remain in the custody of a central party. Token Curated Lists propose a model by which a) the content of lists are decentralized, and b) contributors are incentivized to curate their content according to social consensus.
We’re joined by Simon de la Rouviere, an independent researcher and blogger. Previously, Simon was one of the first employees at ConsenSys and founded Ujo Music. He also contributed to the ERC20 token specification and has written about blockchain and token economics since 2014. In recent months, Simon’s research has focused on Token Curated Registries (or TCRs), and the economics of curation markets.
Topics covered in this episode:
Simon’s background and interest in blockchain, music, and economics
Bonding curves as a mechanism for continuous token issuance
Curation markets and how they relate to bonding curves
Practical applications of curation markets
The connection between curation markets and cultural memes
Token Curated Registries and their applications
The role of TCRs as a crypto economic primitive
The economics and game theory of TCRs
Simon’s recent project “This Artwork is Always for Sale”
Episode links:
Simon de la Rouviere – Medium
Bancor’s Smart Tokens vs Token Bonding Curves – Medium
Introducing Curation Markets: Trade Popularity of Memes & Information (with code)! – Medium
Ujo Music
This Artwork Is Always On Sale – Medium
This Artwork Is Always On Sale
Simon de la Rouviere – Twitter
This episode is hosted by Sebastien Couture and Meher Roy . Show notes and listening options: epicenter.tv/282

Apr 3, 2019 • 1h 27min
Ethan Buchman & Sunny Aggarwal: Cosmos – Launching the Internet of Blockchains
The shipping container brought standardization to the way we move goods around the world. Similarly, TCP/IP packets normalized how information transits over computer networks. Today, blockchains remain siloed ecosystems and interoperability is practically non-existent. A new wave of third-generation blockchain protocols aims to change this. In this new paradigm, blockchains communicate natively and value moves seamlessly from one network to another. One of those projects is Cosmos.
We’re joined by Ethan Buchman and Sunny Aggarwal of Cosmos. With its recent mainnet launch, we discuss how the network is running and address potential issues relating to governance and centralization of power.
Disclaimers:
– Cosmos (All in Bits) is a sponsor of the podcast.
– Brian is a former employee of Tendermint (All in Bits) and founder of the Cosmos validator Chorus One.
– Sunny, is a regular host on Epicenter and founder of the Cosmos validator Sikka.
– All participants in this interview are Atom holders.
Topics covered in this episode:
The Cosmos vision and how it differs from Polkadot and Ethereum 2.0
Building Cosmos and the “Game of Stake”
The Cosmos governance process and current proposals
Voter participation in the Cosmos governance model
The role of validators and the importance of decentralization of power
Validator market economics, related inherent issues, and centralization risks
The Cosmos SDK and how it differs from Substrate
The Cosmos Inter-Blockchain Communication (IBC) Protocol
The role of the Interchain Foundation moving forward
Episode links:
Cosmos website
Cosmos SDK websitt
Cosmos SDK (GitHub)
Cosmos blog
Sunny Aggarwal on Twitter
Ethan Buchman on Twitter
Thank you to our sponsors for their support:
Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks. More at aka.ms/epicenter.
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/281

Mar 27, 2019 • 1h 22min
Jackson Palmer: Dogecoin – wow! so meme. such community. very charity. much story.
Dogecoin was born from the association of two browser tabs: one was an article about the popularity of the doge meme, and the other, CoinMarketCap. The idea quickly gained traction on Twitter, and before long, a new cryptocurrency was born. Dogecoin gained adoption as a tipping currency, the community took part fundraising for charities and other causes, perhaps most notably sending the Jamaican bobsled team to the Sochi Winter Olympics.
We’re joined by Jackson Palmer, co-creator of Dogecoin. Though he has left the project, Jackson shares the story of how he created the most popular meme cryptocurrency as a joke.
Topics covered in this episode:
Jackson’s background and early interest in cryptocurrency
The Dogecoin origin story
The uniquely charitable nature of the community and The Dogecoin Foundation
How the currency became widely used for tipping
The NASCAR sponsorship and Moolah exchange scam
The technological choices which went into early versions of Dogecoin
Dogecoin’s unique monetary policy and economics
Jackson’s thoughts on Doge Ethereum and the state of the project
Why Jackson stepped away from the project and his thoughts on the crypto space
Jackson’s other projects and YouTube channel
Episode links:
Jackson Palmer's website
Dogecoin Github
“Not actually capped at 100 billion?” GitHub issue
Moolah, The Divisive Startup Heavily Involved In The Dogecoin Community, Is Closing Down – TechCrunch
Excerpts from the Moolah Scam - YouTube
Complete conversation with Mintpal/Moolah's ""Alex Green"" AKA Ryan Gentle AKA Ryan Kennedy - YouTube
Epicenter episode 5
Jackson Palmer - Twitter
Jackson Palmer - YouTube
Thank you to our sponsors for their support:
Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks. More at aka.ms/epicenter.
Join the most interoperable ecosystem of connected blockchains. Learn more at cosmos.network/epicenter.
This episode is hosted by Sébastien Couture and Sunny Aggarwal. Show notes and listening options: epicenter.tv/280

Mar 19, 2019 • 1h 31min
Brian Hoffman & Washington Sanchez: OpenBazaar – Growing a Permissionless Marketplace
In the early days of Bitcoin, much of the community’s focus was around payment and getting merchants to adopt cryptocurrencies. Although the technology and narratives have evolved, some projects continue to embrace that original vision of peer-to-peer business, where merchants and their customers interact directly, and if they so wish, anonymously.
We’re joined by Brian Hoffman and Washington Sanchez of OpenBazaar. Since we last interviewed Brian in 2015, the project has grown to become a mature decentralized marketplace where people come together to buy and sell products and services anonymously with crypto. Its polished interface and reputation system gives users a similar experience to that of using eBay, but without fees or the risk of censorship.
Topics covered in this episode:
Brian and Washington’s respective backgrounds
The origins of OpenBazaar as the Dark Market project
The history and evolution of OpenBazaar since their last appearance on episode 67
How OpenBazaar managed to survive all these years and how the vision has evolved over time
Who uses the platform and to what ends
How it compares to traditional dark markets like The Silk Road
OpenBazaar’s position on deplatforming and how it responds to pressure to censor content
How OpenBazaar works under the hood as a collection of decentralized technologies
The company’s business model and future plans
Episode links:
OpenBazaar website
Dark Market project on GitHub
Episode 67 of Epicenter with Brian Hoffman
Trust is Risk
Brian Hoffman, Twitter
Washington Sanchez, Twitter
Thank you to our sponsors for their support:
Join the most interoperable ecosystem of connected blockchains. Learn more at cosmos.network/epicenter.
This episode is hosted by Sébastien Couture and Sunny Aggarwal. Show notes and listening options: epicenter.tv/279

Mar 12, 2019 • 1h 22min
Daniel Lehnberg & Michael Cordner: Grin – Cypherpunk Mimblewimble
Three years ago, a mysterious txt file signed by a pseudonymous Tom Elvis Jedusor was dropped in the Bitcoin-Wizards IRC channel outlining a proposal called Mimblewimble. It proposed a novel way of combining many ideas from Bitcoin research in order to create a new blockchain protocol that will be highly scalable and increase privacy, while still using the same cryptographic assumptions as Bitcoin. A few months later this project was picked up by another pseudonymous individual who started working on an implementation he called Grin. Grin slowly began to draw attention from the Bitcoin community and got a lot of traction.
We join Michael Cordner (Yeastplume) and Daniel Lehnberg, two of the core developers of the Grin blockchain. In this episode we discuss some topics around Grin’s cypherpunk origins, privacy and scalability features, no-premine fair start, and interesting monetary policy.
Topics covered in this episode:
Origins of the Mimblewimble proposal and the prior work it draws upon
Andrew Poelstra’s contributions to improving and fixing the original proposal
Scalability and fast sync times achieved through mimblewimble’s UTXO set compression
How UTXO compression when combined with the Dandellion p2p protocol can increase privacy
Changes in user experience from Bitcoin to Mimblewimble
Beginning of the Grin project as an implementation of the Mimblewimble protocol
Comparision to BEAM, a competing Mimblewimble implementation
Innovating on fair Proof of Work through dual Cuckoo Cycle
Grin’s Monetary Policy and the Mining Fair Start
Episode links:
MimbleWimble Origin
Andrew Poelstra's Improved Paper
Introduction to Grin
Grin for Bitcoiners
Grin Newsletter
Michael Cordner on Twitter
Daniel Lehnberg on Twitter
Thank you to our sponsors for their support:
Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks. More at aka.ms/epicenter.
This episode is hosted by Friederike Ernst and Sunny Aggarwal. Show notes and listening options: epicenter.tv/278

Mar 5, 2019 • 1h 11min
Amaury Séchet: Bitcoin Cash – Part 2
Amaury Séchet is the lead developer of Bitcoin ABC, the largest client for the Bitcoin Cash blockchain. Amaury first got started with Bitcoin in 2010 and closely followed the Bitcoin block size debate as it progressed through the early years of Bitcoin. Predicting the eventual failure of SegWit2x, Amaury was part of the original team that helped coordinate the Bitcoin Cash hard fork, timing it with the activation of SegWit on the main Bitcoin blockchain. We discuss with Amaury the roadmap for Bitcoin Cash, especially with regards to their approach to scalability. We cover many of the novel features the Bitcoin Cash development teams are innovating on such as Canonical Transaction Ordering and Avalanche Pre-Consensus, as well as cover some of the more juicy drama that plagued the Bitcoin Cash community in late 2018, leading to split off of Bitcoin SV.
Topics covered in this episode:
Block Size Debates in Bitcoin
Origins of Bitcoin Cash and the Fork
Year 1 Technical Development of Bitcoin Cash
Bitcoin ABC vs Bitcoin SV
Future Roadmap
Episode links:
Bitcoin Cash Roadmap
Graphene Whitepaper
Avalanche Post-Consensus
The Case for Canonical Transaction Ordering
Bitcoin ABC vs Bitcoin SV Hashwar
Bitcoin NG Episode
EthCC Meetup
Thank you to our sponsors for their support:
Join the most interoperable ecosystem of connected blockchains. Learn more at cosmos.network/epicenter.
Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks. More at aka.ms/epicenter.
This episode is hosted by Brian Fabian Crain and Sunny Aggarwal. Show notes and listening options: epicenter.tv/277

Feb 28, 2019 • 1h 21min
Amaury Séchet: Bitcoin Cash
Amaury Séchet is the lead developer of Bitcoin ABC, the largest client for the Bitcoin Cash blockchain. Amaury first got started with Bitcoin in 2010 and closely followed the Bitcoin block size debate as it progressed through the early years of Bitcoin. Predicting the eventual failure of SegWit2x, Amaury was part of the original team that helped coordinate the Bitcoin Cash hard fork, timing it with the activation of SegWit on the main Bitcoin blockchain. We discuss with Amaury the roadmap for Bitcoin Cash, especially with regards to their approach to scalability. We cover many of the novel features the Bitcoin Cash development teams are innovating on such as Canonical Transaction Ordering and Avalanche Pre-Consensus, as well as cover some of the more juicy drama that plagued the Bitcoin Cash community in late 2018, leading to split off of Bitcoin SV.
Topics covered in this episode:
Block Size Debates in Bitcoin
Origins of Bitcoin Cash and the Fork
Year 1 Technical Development of Bitcoin Cash
Bitcoin ABC vs Bitcoin SV
Future Roadmap
Episode links:
Bitcoin Cash Roadmap
Graphene Whitepaper
Avalanche Post-Consensus
The Case for Canonical Transaction Ordering
Bitcoin ABC vs Bitcoin SV Hashwar
Bitcoin NG Episode
EthCC Meetup
Thank you to our sponsors for their support:
Deploy enterprise-ready consortium blockchain networks that scale in just a few clicks. More at aka.ms/epicenter.
This episode is hosted by Brian Fabian Crain and Sunny Aggarwal. Show notes and listening options: epicenter.tv/276

Feb 20, 2019 • 1h 24min
Ben Goertzel: SingularityNET – The Global AI Network and Marketplace
Artificial Intelligence is often misunderstood. And much like blockchain, those who fiercely stand by the technology believe it will change the world for the better. Others fear the negative repercussions it could bring it and would rather see it disappear.
We’re joined by Ben Goertzel. Ben’s interest in AI and robotics date back to his childhood and he has made these his life-long passion and work. He is the CEO of SingularityNET, a company building a marketplace for AIs which leverages blockchain. He is also Chief Scientist at Hanson Robotics who has brought us the now famous Sophia robot. When he’s not building blockchains and robots, he leads the OpenCog open-source AI framework and is Chair of Humanity +, an organization which focuses on technology and ethics.
Topics covered in this episode:
Ben’s background as a mathematician and his lifelong passion for AI and robotics
What is AI, AGI and machine learning, and how these technologies differ
What is the killer application for AI
The problem of data and power centralization as it relates to AI
AI safety and with what we should be most concerned when it comes to AI dominance
Hanson Robotics and the Sophia robot
How blockchains and AI are relevant to each other
The role of AI in blockchain governance and the potential for AI systems to compete amongst each other
What is SingularityNET and what the company is building
Episode links:
Ben Goertzel's Website
SingularityNET website
SingularityNET whitepaper
Ben Goertzel portraied in Silicon Valley
Ben Goertzel's Website
Creating Internet Intelligence
Accelerando
Thank you to our sponsors for their support:
Simplify your hiring process & access the best blockchain talent . Get a $1,000 credit on your first hire at toptal.com/epicenter.
Join the most interoperable ecosystem of connected blockchains. Learn more at cosmos.network/epicenter.
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/275