Support the show, consider donating: 1MjytrKGNVYkqPfmBKrm3MJzm36vH6m8ZR (http://bit.ly/2bNodUa) With academic research on Bitcoin and cryptocurrencies still in its infancy, Sarah Meiklejohn's track record of publications in the area stands out. The UCL computer science professor has explored topics ranging from anonymity in Bitcoin to how a central bank could go about issuing a cryptocurrency. Topics covered included: - What techniques can be used to deanonymize Bitcoin users - How Bitcoin's usage evolved over time - Whether privacy-enhancing overlays in Bitcoin currently work - What a cryptocurrency issued by a central bank could look like - The architecture of RSCoin Links mentioned in this episode: - Sarah Meiklejohn UCL Website: http://bit.ly/2bZ9zvh - Meiklejohn & Orlandi (2015): Privacy-Enhancing Overlays in Bitcoin http://bit.ly/2c2PVwV - Danezis & Meiklejohn (2016): Centrally Banked Cryptocurrencies http://bit.ly/2cC1FvJ - Meiklejohn et al (2016): A Fistful of Bitcoins http://bit.ly/2c2PQJH - EB70 - Michael Gronager: Chainalysis http://bit.ly/2c0BhpV - EB83 - David Andolfatto: Fedcoins and Cryptocurrencies Issued by Central Banks http://bit.ly/1W2Isib Sponsors: - Jaxx: Wallets that Unify the Blockchain Experience Across Devices http://jaxx.io - Ledger Nano: Smart card security for your Bitcoins - Get 10% off your first order when you use the code EPICENTER at http://ledgerwallet.com - Hide.me: Protect your privacy and personal data with a free VPN account at Hide.me/epicenter Show notes: http://epicenter.tv/147 YouTube: http://youtu.be/FONaFZ0yhWA SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-147 Epicenter is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy.

Support the show, consider donating: 1EaybNRvKodkF5Xu8FiGXrnLXK1DzUdT5x (http://bit.ly/2a3WsID) Exchanges are often criticized as a central point of failure of the cryptocurrency space. This isn't without justification as, in recent years, we have seen a number of exchanges get hacked, robbed, or embezzled by their founders, which is far from insignificant. One proposed alternative are decentralized exchanges that would allow people make peer-to-peer trades using sophisticated smart contracts. However, there remains the fundamental challenge of interfacing with the legacy banking system. Manfred Karrer joins us for a lengthy discussion on Bitsquare, a decentralized cryptocyrrency exchange which supports most fiat currencies and cryptocurrencies. Built to be a decentralized equivalent of LocalBitcoins, the Bitsquare client, which connects to the peer-to-peer network, uses Tor by default, which makes it almost completely anonymous. There are also a number of safeguards in place to eliminate the potential for fraud and theft, as well as an arbitration system to resolve disputes between traders. Topics discussed in this episode include: - The motivation behind Bitsquare - The Bitsquare client and user experience - A walkthrough of a typical trade - The mechanics of the order book - The fiat currency transfer mechanism - The current and future arbitration process - Manfred's thoughts on DAOs - Bitsquare's product roadmap Links mentioned in this episode: - Bitsquare Website: http://bitsquare.io - Bitsquare Whitepaper: https://bitsquare.io/bitsquare.pdf - Risk Analysis: http://bitsquare.io/risk_analysis.pdf - Arbitration System: http://bitsquare.io/arbitration_system.pdf - Github Repo: https://github.com/bitsquare/bitsquare Sponsors: - Jaxx: Wallets that Unify the Blockchain Experience Across Devices http://jaxx.io Show notes: http://epicenterbitcoin.com/podcast/140 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-140 Epicenter Bitcoin is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy. - Visit our website: http://epicenterbitcoin.com - Subscribe to our newsletter: http://epicenterbitcoin.com/newsletter - Twitter: http://twitter.com/epicenterbtc

Support the show, consider donating: 18DRrNBo9JPKEKYj13Y6xiaQw5AL4S6K4c (http://bit.ly/1SqemXh) In the midst of the heated blocksize debate one could be forgiven to think that there is very little Bitcoin developers are able to agree on. Yet, when core developer and Blockstream co-founder Pieter Wuille introduced the concept of segregated witness at the Scaling Bitcoin conference in Hong Kong most of the Bitcoin community quickly rallied behind the proposal. Eric Lombrozo, CEO of wallet company Ciphrex and responsible for running the segregated witness testnet, joined us to discuss the proposal and its implications. Segregated witness, it turns out, does not only provide an elegant way to increase the blocksize via a soft-fork, it also solves transaction malleability and greatly simplifies updating the Bitcoin's scripting language. It's a crucial topic and may well enable a new wave of accelerated innovation in Bitcoin. Topics covered included: - The various benefits of segregated witness - The mechanics of segregated witness - How segregated witness solves transaction malleability - How segregated witness could increase the blocksize to 2-3MB with a soft fork - What segregated witness means for wallet developers - How segregated witness could facilitate development of off-chain networks such as Lightning Network - The important difference between hard forks and soft forks - How segregated witness will allow updates of Bitcoin's script language via soft forks Links mentioned in this episode: - Scaling Bitcoin Talk by Pieter Wuille http://bit.ly/1RhgRKA - Let's Talk Bitcoin! #277 Separating Signatures with Segregated Witness http://bit.ly/1SaELZi - Gavin Andresen: Segregated Witness is Cool http://bit.ly/1RhgOyh - Bitcoin Magazine Series on Segregated Witness Part 1: http://bit.ly/1PgyFD8 Part 2: http://bit.ly/1SYEK9K Part 3: http://bit.ly/23Soo7H - Eric Lombrozo's company Ciphrex: http://bit.ly/1T83Bcs Sponsors: - Ledger Nano: Smart card security for your Bitcoins - Get 10% off your first order when you use the code EPICENTER at http://ledgerwallet.com Show notes: http://epicenterbitcoin.com/podcast/117 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-117 Epicenter Bitcoin is hosted by Brian Fabian Crain, Sébastien Couture & Meher Roy. - Visit our website: http://epicenterbitcoin.com - Subscribe to our newsletter: http://epicenterbitcoin.com/newsletter - Twitter: http://twitter.com/epicenterbtc

Support the show, consider donating: 165Zg9wiJh8ibr5QDL1jVJdavamYeckcRz (http://bit.ly/1TyUopg) A brilliant fact about crypto-economic blockchains is that they enable the construction of naming systems that transcend limits imposed by Zooko's triangle. Traditional naming systems such as human names, Domain Name System (DNS) and Facebook profile names are subject to Zooko's triangle and cannot be secure, human memorable and decentralised at once. For instance human names such as Meher Roy are human-memorable and decentralised but not secure (nothing prevents hundreds of people being called Meher Roy). Domain Names like https://epicenterbitcoin.com are secure and human-memorable but require a central authority to hand out names. OneName leverages Bitcoin to build a Global Identification system called blockchain ID. Blockchain IDs for users can be associated with real world identity data such as social media profiles, government issued papers etc. In this episode we converse with Ryan Shea and Muneeb Ali, co-founders and leaders of OneName, Blockstore and BlockStack. They explain the rationale and vision behind their push for a Global Decentralised Identification and Verification system. Topics covered include: - Zooko's triangle and how Bitcoin breaks the triangle - The general idea behind blockchain ID, how it works and its component transactions - Why OneName migrated their blockchain ID system from the Namecoin to the Bitcoin blockchain - Technical design of Blockstore and how it enables decentralised storage and association of large datasets to blockchain IDs - Vision and use cases for Decentralised Identity, authentication and identity verification. - The notion of Probabilistic Identity Links mentioned in this episode: - Intentional Naming System: http://bit.ly/1MxxtXP - Zooko's triangle: http://bit.ly/1khi2wg - Why Onename is Migrating to the Bitcoin Blockchain: http://bit.ly/1Lw8Zy5 - Blockchain ID: http://bit.ly/1Nj9OgC - Organization of Schemas: http://bit.ly/1y6szdQ - Blockstack: http://bit.ly/1LiRfsf - BlockStore: http://bit.ly/1Mxxx9V Sponsors: - Ledger Nano: Smart card security for your Bitcoins - Get 10% off your first order when you use the code EB09 at http://ledgerwallet.com (valid until 09/30/15) - Hide.me: Protect your privacy and personal data with a free VPN account at Hide.me/epicenter Show notes: http://epicenterbitcoin.com/podcast/101 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-101 Epicenter Bitcoin is hosted by Brian Fabian Crain & Sébastien Couture. - Visit our website: http://epicenterbitcoin.com - Subscribe to our newsletter: http://epicenterbitcoin.com/newsletter - Twitter: http://twitter.com/epicenterbtc