Stay ConnectedEpicenter 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.
Copyright: © CC BY-NC-SA
Since the rise of digital currencies and cryptocurrencies, central banks are considering the role these new forms of money may play in our evolving digital economy. One of the ideas studied is the notion of a central bank digital currency. While people and companies can hold central bank liabilities in the form of cash, only licensed banks have access to digital cash accounts with central banks.
We’re joined by David Andolfatto, VP of Research at the Federal Reserve Bank of St. Louis. David was previously on the podcast to discuss his idea for Fedcoin, a central bank issued cryptocurrency. In a recent paper, he explores the impact central bank digital currencies may have on the monopolistic banking sector.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/266
While trustless interactions on Ethereum are native to the protocol, trustless interactions between the Ethereum blockchain and other blockchains are difficult to implement. Interoperability protocols heavily rely on atomic swaps, which typically come with a free option problem.
For this episode we’re joined by James Prestwich, CEO at Summa. Summa designs and implements cross-chain financial contracts and instruments such as swaps, options, futures, and auctions. Summa recently conducted a dutch auction spanning the Bitcoin and Ethereum blockchains: Ethereum NFTs were auctioned off trustlessly to bidders on the Bitcoin network. We also discuss Riemann, a framework for deploying transaction scripts to UTXO-based chains, as well as the advantages of the predictability of transactions in UTXO-based chains and how to bring some of those advantages to Ethereum smart contracts.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Friederike Ernst and Sunny Aggarwal. Show notes and listening options: epicenter.tv/265
We enter dozens of trust relationships ever time we interact with the Web. Browsers, ISPs, DNS providers, cloud hosting companies, all the way down to the handful of people who control certificate root keys; we rely on the integrity of these intermediaries to serve reliable, and accurate information. The concentration of power by any one of these actors threatens to compromise the very foundational principles of the Web. Decentralized technologies, like Bitcoin, Ethereum, Tor, and IPFS seek to reverse this trend.
We’re joined by Nick Sullivan, Chief Cryptographer at Cloudflare. Founded less than 10 years ago, the company offers content delivery services (CND), DNS, and DDoS protection to over 12 million websites. The company contributes to open source cryptography libraries, some of which are used by Etherum. They recently launched an IPFS gateway and features which allow users to have strong guarantees as to the integrity of the content.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Sébastien Couture and Sunny Aggarwal. Show notes and listening options: epicenter.tv/264
The Ethereum vision has always been to create a world computer. But its scalability and performance limitations have meant that it has fallen far short of that vision. Yet, work on scaling Ethereum has exploded in breadth and complexity over the past years. From variants of PoS, to Plasma / Plasma Cash, sharding, EWASM, BLS signatures, everything has been on the table. While confusing on the surface, underneath a coherent vision for a new Ethereum that will scale near infinitely has emerged.
We were joined by Ethereum Researcher Justin Drake to discuss the Ethereum Serenity vision, its core components and the roadmap ahead. A particular focus was the beacon chain, the role of randomness and Verifiable Delay Functions.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain. Show notes and listening options: epicenter.tv/263
Most observers of the ecosystem will probably agree that 2015-2017 were the years of the enterprise blockchain. It was during that time that many startups catering to enterprise were founded and funded, including Monax and Stratumn (where Brian and Sebastien previously worked). For the permissioned blockchain camp, adoption would come in the form of enterprise use cases, arguing that public networks carried too much risk, and lacked needed features like privacy. While much of the hype has subsided, large companies in every sector are forming consortia and leveraging blockchain to provide better process traceability and transparency, and reduce their reliance on third parties.
We’re joined by Brian Behlendorf, Executive Director of Hyperledger. When Brian was last on the show, he had recently started his role at the Linux Foundation. Now, two years later, Hyperledger has gone from a nascent project to a mature ecosystem of technologies with hundreds of members. With dozens of networks in production, and backed by companies like IBM, Hyperleger is the most widely used blockchain technology for permissioned networks.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/262
The difficulties of compensating content creators for their work has been a driving force of the web for decades. It gave rise to advertising-driven tech giants like Google and Facebook and contributed to the decline of industries like music and publishing. Coil aims to change this and leverage blockchain and the Interledger Protocol to build a new business model for the web.
We were joined by Coil Founder and former Ripple CTO Stefan Thomas and Coil Co-Founder Ben Sharifian to discuss their ambitions to change how content is consumed and paid for.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain and Sunny Aggarwal. Show notes and listening options: epicenter.tv/261
It’s that time of year again, Devcon time! Just as the conference was wrapping up, we sat down at the Prague Congress Center for a Devcon4 recap. Join Brian, Friederike, Sebastien, and a surprise guest host as we share our thoughts on the event, and how the Ethereum ecosystem has evolved since we last met in Cancun.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain, Friederike Ernst and Sébastien Couture. Show notes and listening options: epicenter.tv/260
From one of the main Ethereum clients, to Polkadot to Substrate; Parity has become exceptional at developing successful open-source blockchain projects. Their latest effort Substrate provides a framework to easily create custom blockchains. Building on cutting-edge technologies like Web Assembly, Substrate also offers automated on-chain upgrades.
We were joined by Gavin Wood, who was previously co-founder and CTO of Ethereum and founded Parity. We talked about the early Ethereum days, how Parity got started, Substrate, Polkadot and his views on on-chain governance.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Brian Fabian Crain and Meher Roy. Show notes and listening options: epicenter.tv/259
We’re joined by Monica Quaintance, Head of Engineering and Adoption at Kadena. While most companies providing enterprise solutions focus primarily on permissioned systems, Kadena is building both a public network protocol and private blockchain infrastructure. Their Chainweb protocol will soon launch as a public network and smart contract platform. The company claims their novel approach to proof of work offers enormous gains on transaction throughput, even at scale, while benefiting from the same security as Bitcoin. Alongside Chainwebs, Kadena is building a permissioned protocol more suited for enterprise applications in insurance and finance.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Meher Roy and Sébastien Couture. Show notes and listening options: epicenter.tv/258
Building open source software is a collaborative process which relies on good faith and willingness of volunteers. While most of the software we use daily relies heavily on open-source libraries, incentive models are broken. Repo maintainers are eager to see their projects evolve, but have little leverage to encourage developers to contribue. And projects contributors create enormous value by dedicating their time and expertise while getting little in return. Both open and closed-source projects utilize bountied to source engineering talent. Combined with blockchain technologies, there is a potential to create efficient, two-sided markets which align incentives for all participants.
We’re joined by Kevin Owocki, who is the Founder of Gitcoin. The Ethereum-based platform leverages the open source community to incentivize and monetize work, remunerating developers for pull requests made to projects. Gitcoin was itself built using Gitcoin and is today facilitating bug bounty payments for dozens of blockchain projects. At the time of writing, over 200 projects have used the platform to distribute over $340,000 in bounties to developers. As Gitcoin continues to grow, the goal is to expand its reach to the broader open-source ecosystem.
Topics covered in this episode:
Episode links:
Thank you to our sponsors for their support:
This episode is hosted by Friederike Ernst and Sébastien Couture. Show notes and listening options: epicenter.tv/257
Our TOPPODCAST Picks 
