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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

Aug 4, 2017 • 1h 13min
Eyal Hertzog: Bancor and the Rise of User-Generated Currencies
Bancor is a simple, but hard-to-understand protocol that enables price discovery and liquidity even for assets that aren’t actively traded. Co-Founder Eyal Hertzog joined us to explain how the Bancor protocol works and why they think it will play a key role in enabling a massive wave of small, but interconnected user-generated currencies. We dissected the workings of the protocol, its radical implications as well as the takeaways from their record-shattering, but controversial crowdsale.
Topics covered in this episode:
Eyal’s background in early internet startups
The origin story of Bancor
Why asset markets suffer from the double coincidence of wants problem
The benefits of Bancor-based Smart Tokens
How Bancor and BNT can create a liquidity network
Why BNT benefits from network effects
What went well and what didn’t go well about the Bancor Crowdsale
Why Eyal thinks the price floor was a good idea
Episode links:
Bancor protocol
Bancor Whitepaper
Response to “Bancor is Flawed” – The Bancor Protocol
Bancor at Coinfest 2017 in Amsterdam - YouTube
Bernard Lietear, EURO architect discusses Bancor
This episode is hosted by Brian Fabian Crain and Meher Roy. Show notes and listening options: epicenter.tv/194

Jul 26, 2017 • 1h 9min
Dave Collins & Jake Yocom-Piatt:: Decred – A Hybrid Approach to Blockchain Governance
Dave Collins and Jake Yocom-Piatt join us to talk about Decred, a cryptocurrency which introduces an innovative system of community-based governance into its blockchain. Decred implements a hybrid Proof of Work and Proof of Stake system in which miners validate transactions, while users can vote on new features and upgrades to the protocol. This clever approach enables efficient blockchain governance, which has demonstrated to be successful in a recent protocol upgrade on the live network.
Topics covered in this episode:
Dave and Jake’s respective backgrounds in the blockchain space
The challenges addressed by Decred, specifically regarding blockchain governance
Decred’s hybrid Proof of Work/Proof of Stake approach to governance
How users of the network vote on protocol upgrade with “”tickets””
Possible downfalls and attack vectors to this approach
How Decred’s governance model successfully implemented a hard fork on the production network
Decred’s approach to development funding
Episode links:
Decred Website
Decred Documentation
This episode is hosted by Meher Roy and Sébastien Couture. Show notes and listening options: epicenter.tv/193

Jul 19, 2017 • 1h 10min
Aviv Zohar & Yonatan Sompolinsky: Of Spectre & Ghosts – Radical Ideas to Scale Blockchain Tech
Hebrew University academics Aviv Zohar and Yonatan Sompolinski joined us to discuss their research at the forefront of blockchain technology. We talked about their early proposals for scaling Bitcoin using the GHOST protocol, which later inspired Ethereum. And then we discussed SPECTRE and a new type of network based on directed acrylic graphs (DAG). DAGs abandon the blockchain data structure to allow constant generation of blocks that later get merged achieving block times of seconds and throughput many orders of magnitudes above current blockchain network.
Topics covered in this episode:
How Aviv Zohar wrote one of the first academic papers on Bitcoin in 2011
The GHOST protocol and how it could allow much faster block times
The difference between what Ethereum built and the GHOST protocol
Why DAG (Directed Acrylic Graphs) have massive advantages over blockchains
Towards massive on-chain scaling and speed with the SPECTRE Protocol
Their view on existing DAG-based networks like IOTA and Byteball
Episode links:
SPECTRE Medium Post
SPECTRE (full paper)
Accelerating Bitcoin's Transactions
Inclusive Blockchain Protocols
On Bitcoin and Red Balloons
Aviv's Website
Yonatan's Website
This episode is hosted by Brian Fabian Crain and Meher Roy. Show notes and listening options: epicenter.tv/192

Jul 11, 2017 • 1h 11min
Richard Craib: Numerai – A Revolutionary Hedge Fund Built on Blockchain and AI
Numerai Founder Richard Craib joined us to discuss his radical project to build a hedge fund with network effects. Numerai manages its portfolio by giving its data in encrypted form to data scientists who compete to create the best predictions and get paid with cryptocurrencies. Numerai expects to radically alter the structure of the hedge fund and asset management industry.
Topics covered in this episode:
How hedge funds work and what trends effect them
Quantitative trading and the role of AI in investing
How Numerai uses crowdsourcing and AI to manage its portfolio
How Numerai lets data scientists build models without knowing the underlying data
The Function of Numerai’s own token Numeraire
Why Numerai is switching from paying data scientists in Bitcoin to Ethereum
Numerai’s crazy goal of managing all the money in the world
Episode links:
Numerai
Numerai Whitepaper
An AI Hedge Fund Goes Live On Ethereum – Numerai – Medium
A New Cryptocurrency For Coordinating Artificial Intelligence on Numerai
Encrypted Data For Efficient Markets
Building the Numerai Meta Model
Introducing Numeraire
This episode is hosted by Brian Fabian Crain and Meher Roy. Show notes and listening options: epicenter.tv/191

Jul 4, 2017 • 1h 2min
Erik Voorhees: Prism – The World’s First Portfolio Market Platform
Shapeshift CEO Erik Voorhees joined us to discuss his journey in the industry, the evolution of the decentralized exchange Shapeshift and their latest project Prism. We spent most time diving into the mechanics and enormous potential of Prism. Prism allows users to create a portfolio of digital assets that is purely managed on the Ethereum blockchain and illustrates how blockchain-based financial products can be built.
Topics covered in this episode:
Erik’s journey in the blockchain space from SatoshiDice to Shapeshift
Shapeshift’s evolution and long-term vision
Erik’s view on ICOs and why they will disrupt the stock markets
Prism – The world’s first trustless portfolio market platform
The mechaniscs of Prism
Why Erik supports SegWit2x
Episode links:
Shapeshift Website
Erik Vorhees' Blog: Money and State
Erik Vorhees Twitter Page
Prism Exchange
Introducing Prism - Blog Post
Epicenter 130 with Erik Vorhees
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/190

Jun 27, 2017 • 1h 6min
Jimmy Song: A Fork in the Road for Bitcoin?
After years of what has seemed like an endless debate, bitcoin may be at a crucial turning point in its relatively short lifetime. The question network scalability has divided the community into several factions which are seemingly irreconcilable. However, in just a few weeks, the future of bitcoin may be decided as miners and users throw their support behind one of many proposals to propel the bitcoin network into a new era.
Bitcoin Developer and Principal Architect at Paxos, Jimmy Song, joins us to discuss the different scalability proposals for which miners are currently signaling their support. Among others, Segregated Witness (BIP 141), Emergent Consensus (Bitcoin Unlimited) and SegWit2x (The New York Agreement), are gaining significant traction among miners. Will one of these proposals gain majority support, allowing for the network to upgrade with relative ease, or will we enter a situation where one proposal is backed by a strong minority of users, potentially forking the network into two?
Topics covered in this episode:
Jimmy’s background as a Bitcoin Developer and former VP of Engineering at Armory
A broad overview of bitcoin network’s current situation
An overview of the different scaling proposals for which miners are signaling their support
Important dates coming up in July and August of 2017
The difference between Segregated Witness and SegWit2x
The UASF and how it may affect SegWit2x implementation
Episode links:
BIP91: The SegWit Activation "Kludge" That Should Keep Bitcoin Whole
Examining Bitmain’s Press Release
BIP 148 UASF Q&A
Greg Maxwell: "a hasty snapshot of a few of my views"
UAHF: A contingency plan against UASF (BIP148)
How to Give Everyone More Control
"Bitcoin Scaling Agreement at Consensus 2017
Bitcoin, UASF and Skin in the Game
UASF BIP148 Scenarios and Game Theory
Why the UASF Segwit Scenario is Hopelessly Naive
[bitcoin-discuss] [Bitcoin-segwit2x] Alpha Milestone
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/189

Jun 20, 2017 • 1h 13min
William Mougayar: Unpacking Initial Coin Offerings (ICO) and Token Sales
Token sales, often called Initial Coin Offerings (ICO), are exploding in popularity. Seemingly each week a new record is hit with huge sums being raised by alpha-stage projects in almost no time. William Mougayar, an investor, author and blogger, who has been at the forefront of the token sale movement joined us to unpack the most dynamic trend in the blockchain ecosystem. We cover the great promise of token sales in disrupting venture capital and changing how startups are build and grown. We also address the apparent irrationality of valuations and what distinguishes a responsible from a reckless token sale.
Topics covered in this episode:
The current state of the ICO market
Issues with recent ICOs such as BAT, Bancor and Gnosis
Why more attention needs to be paid to the relationship between token and application usage
How one should think about token valuations
Whether we are in a bubble or not
How VCs are responding to disruption through ICOs
Episode links:
Startup Management Blog
"The Ultimate Reading List for Blockchain, Token and Cryptocurrency Sources"
"Tokenomics – A Business Guide to Token Usage, Utility and Value"
Raising Tokens to Build a Company or an Ecosystem?
Business Blockchain on Amazon
Vitalik Buterin on Token Sale Mechanisms
Buyer Beware – AVC
Token Summit YouTube Channel
Token Summit Website
Thoughts on the Bancor Token Sale
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/188

Jun 14, 2017 • 1h 5min
Alex Leverington & Julian Zawistowski: Golem – The Worldwide Decentralized Supercomputer
With most of the world’s computing power concentrated in Internet companies’ data centers, the Internet has become a very centralized place. The Golem project aims to build the sharing economy of computing power. This “global, open sourced, decentralized supercomputer” will function thanks to the combined power of a massive network of machines, from personal laptops to whole data centers.
We’re joined by Julian Zawistowski and Alex Leverington, CEO and P2P engineer at Golem. We discuss how Golem hopes to create a more balanced distribution of computing power for the Internet.
Topics covered in this episode:
What is Golem and the problem it is addressing
What may people and companies use Golem for
How Golem compares to other projects like iExec or TrueBit
Who are the different participants in the Golem network
How Golem executes computations
The role Ethereum has to play in Golem
How payments work in Golem
The economic model for Golem’s decentralized marketplace
The project’s current status and roadmap
Episode links:
Golem Website
Golem Blog
Pre-Brass Golem 0.6.0 Released!
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/187

Jun 7, 2017 • 1h 13min
Siân Jones: An Enlightened Approach to Blockchain Regulation in Gibraltar
Our regulatory expert Siân Jones joined us to discuss her work on a regulatory framework for distributed ledger technology (DLT) for Gibraltar. We discuss how the framework differs from other efforts and aims to attract rather than curtail blockchain businesses. We also covered why the rapid changes require the flexibility of a principle-based approach to regulation. Finally, we discussed current trends around ICOs and how they could be impacted by regulation.
Topics covered in this episode:
How the Gibraltar DLT Regulatory Framework came about
How Gibraltar’s approach differs from others like BitLicense
Why a principle-based approach is preferable for technology regulation
Why the framework focuses on custodial services, not decentralized protocols
The path from proposal to regulation
Recent trends in how ICOs are conducted
Why principle-based regulation could improve the ICO market
Episode links:
Proposals for a DLT Regulatory Framework
Want To Hold An ICO? CoinList Makes It Easy -- And Legal
Thoughts on Tokens by Balaji S. Srinivasan
Tezos
COINsult
This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/186

May 30, 2017 • 1h 2min
Brendan Eich: Brave – Reinventing the Monetization of Content and Attention
The saying goes: if you’re not paying for it, it’s likely that you’re the product. And with the rise of targeted ads, user behavior tracking, and alike, more and more users are turning to ad blocking software to protect their privacy and improve their browsing experience. In the last 25 years, the content monetization and Internet advertising industries have evolved to become complex ecosystems with multiple intermediating layers between users, publishers, and advertisers. This has created a situation where user’s rights are constantly violated and where little accountability exists.
We’re joined by Brendan Eich, Founder, and CEO of Brave. As an early Internet pioneer, Brendan created Javascript while working at Netscape in the mid 90’s, and helped found the Mozilla Foundation and Mozilla Corporation, where he served as CEO for several years. Brave is a new desktop and mobile browser which blocks ads and tracking by default. This has the advantage of drastically improves page load times while protecting users’ privacy. But Brave is much more than just a browser. Their team will launch the Basic Attention Token, which will serve as the currency of attention marketplaces between publishers, advertisers, and users. With the ambition to turn the Internet advertising industry on its head, this new attention economy marketplace will eliminate the need for unneeded intermediaries, provide publishers with new content monetization models and remunerate users when they chose to share their data with advertisers.
Topics covered in this episode:
Brendan’s background as an early Internet pioneer
How monetization of content and attention on the Internet are broken
How the Internet advertising industry works and the players involved
A high-level overview of the Brave browser
Brave’s features and product roadmap
The Basic Attention Token and its role as a currency for attention
How BAT will serve to create attention marketplaces between publishers, advertisers, and users
Episode links:
Brave Website
Basic Attention Token
This episode is hosted by Meher Roy and Sébastien Couture. Show notes and listening options: epicenter.tv/185