Keeping Bitcoins safe from theft is probably one of the things Bitcoin holders worry the most about. Historically, there have been a number of recommended best practices like paper wallets, BIP 38 wallet cards and cold storage. Although these remain relatively safe ways to store Bitcoins, implementing these solutions can be complicated and difficult to manage for day-to-day transactions. Recently, some companies have begun introducing multi-signature HD wallet services, where 2-out-of-3 signatures are required to sign transactions. These solutions offer security and usability, with the assurance that Bitcoins will remain safe, and the ability to transact with ease. In fact, the website P2SH.info tracks the adoption of multi-sig, and it has been growing exponentially in recent months. Which brings us to our guest: Arianna Simpson, an Account Specialist at BitGo, a company that provides a simple multi-signature HD wallet solution for individuals and businesses. We talked to Arianna about BitGo and the services they offer, discuss different use cases for multi-sig HD wallets and make projections about the evolution of the wallet space from different angles. Episode links: BitGo Arianna's blog Amount of Bitcoins held in multi-sig addresses This episode is hosted by Brian Fabian Crain and Sébastien Couture. Show notes and listening options: epicenter.tv/053

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