David A. Johnston is a very active member of the Bitcoin community. Aside from speaking at about every Bitcoin conference there is, David is the Managing Director of the DApps Fund, a board member MSC Protocol Foundation, as well as Co-founder and Executive Director of the BitAngels Network. On this episode we go deep in to decentralized applications, and who better to talk to about DApps than the creator of “Johnston’s Law” which states “Everything that can be decentralized, will be decentralized”. We talked to David about the recent whitepaper he co-wrote titled “The General Theory of Decentralized Applications, DApps” which defines the different types of DApps and a number of best practices with regards to funding, token distribution, business models, etc. We also discussed the DApps Fund, BitAngels Network and the Master Protocol, and his involvement with those projects. Episode links: DApps Whitepaper "Decentralized Applications - the future of Bitcoin and virtual currencies?" - CoinSummit San Francisco 2014 Crowdsale Best Practices Paper DApps Fund BitAngels Network Mastercoin Foundation This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/051

Meni Rosenfeld is Founder of Bitcoil and Chairman of the Israeli Bitcoin Association. Having organized several meetups and conferences in Israel, he is a very active member of the Israeli Bitcoin community. Meni has been studying mining pool reward methods for several years and in 2011, wrote a paper titled “Analysis of Bitcoin Pooled Mining Reward Systems”. This research gave him a broad understanding the reward system landscape and the issues with many of the methods used by pools. He later wrote proposals for alternative non pay-per-share methods and which would render pool hopping impossible: the geometric method and double geometric method. Episode links: Mining Pools Reward Methods Talk - Bitcoin 2013 Conference [YouTube] Analysis of Bitcoin Pooled Mining Reward Systems [paper] Summary of mining pool reward systems [paper] Analysis of hashrate-based double-spending [paper] Meni Rosenfeld's vanity thread [Bitcoin Talk Forum] Geometric method [Bitcoin Talk Forum]: New cheat-proof mining pool scoring method Double geometric method [Bitcoin Talk Forum]: Hopping-proof, low-variance reward system Mine in multiple pools to reduce variance [Bitcoin Talk Forum] Multi-PPS [Bitcoin Talk Forum] ASIC will not centralize Bitcoin mining [Meni’s blog] Blocksize Economics by Gavin Andresen [Bitcoin Foundation] Proof of Activity: Extending Bitcoin’s Proof of Work via Proof of Stake [paper] Israel Bitcoin Meetup Group Israeli Bitcoin Community Facebook Page This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/049