Support the show, consider donating: 1NuPtD5RvyfbFPCzCtLu9xxJJZZcnLzQE9 (http://bit.ly/2bBo7V7) From BitShares to his central role during the inception of Ethereum Charles Hoskinson has continually influenced key projects in the blockchain and cryptocurrency space. After departing the Ethereum project in 2014, he has recently stepped back into the limelight by pledging support and resources to turn the fledgling Ethereum fork ETC into a viable project. Charles joined us together with Alex Chepurnoy, a developer at his company IOHK. Besides Ethereum Classic, we talked about IOHK and Scorex, IOHK's modular blockchain framework project that Alex Chepurnoy has been leading. Topics covered included: - The vision and activities of IOHK - Scorex: A Modular Blockchain Framework - Conflicts of vision that lead to Charles' departure as original CEO of Ethereum in 2014 - Why the hard fork broken Ethereum's social contract - Why ETC should differentiate and find its own path - The role governance could play in ETC's future Links mentioned in this episode: - IOHK Scorex http://bit.ly/2bqM65q - IOHK - Input Output Hong Kong Website http://bit.ly/2aRE2sN - Charles Hoskinson: Hoskus Parvum Opus: A Brief Sojourn Back to Ethereum http://bit.ly/2aTQH44 - Ethereum Classic: keep censorship-resistant Ethereum going http://bit.ly/2brVMzc - ETC Declaration of Independence http://bit.ly/2bq8QmI - Let's Talk Bitcoin #304 Immutability vs Consensus Debate http://bit.ly/2aSjxvE 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 - Jaxx: Wallets that Unify the Blockchain Experience Across Devices http://jaxx.io Show notes: http://epicenterbitcoin.com/podcast/144 YouTube: http://youtu.be/5040I0PW7rc SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-144 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: 1FNPtiqcHnNW2Bxx27T3UTNiJNVAmRkvPv (http://bit.ly/1N6TbI9) With Proof-of-Stake (PoS) a blockchain is secured not by spending an external resource such as electricity but by using value internal to the chain itself. The promise of higher security at a lower cost is what also drives Ethereum to plan a move away from Proof-of-Work to PoS in the future. Ethereum researcher Vlad Zamfir, who leads their effort in the complex search for the optimal PoS consensus system joined us for an in-depth discussion of the challenges of PoS, the approach Casper is taking and what consensus in Ethereum land could look like in the future. Topics covered included: - How he became interested in consensus and Proof-of-Stake (PoS) - Why Ethereum plans to switch to the PoS systems Casper in the future - What the Long-Range Attack and Nothing-at-Stake problems are and how Casper addresses them - How a betting mechanism is used to get validators to reach consensus - What centralization pressures exist for validators and what operating a validator will look like - The role of security deposits in Casper - The difference between Tendermint and Casper - Whether forks create big UI/UX issues for Casper - Why Casper is very light client friendly Links mentioned in this episode: Links: - Introducing Casper - Ethereum Blog http://bit.ly/1ONermJ - Review of Casper, Ethereum’s proposed Proof of Stake Algorithm http://bit.ly/1YcWG1G - Casper Protocol Specification http://bit.ly/1Nzi8GI - Slasher, Ghost and Other Developments in Proof-of-Stake http://bit.ly/1NziInC - Epicenter Bitcoin Episode 58 with Vitalik Buterin on Proof-of-Stake http://bit.ly/1PKdHNK Sponsors: - Hide.me: Protect your privacy and personal data with a free VPN account at Hide.me/epicenter Show notes: http://epicenterbitcoin.com/podcast/105 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-105 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

Support the show, consider donating: 1MiCgB2bRo1kRgzHx2QbahX6vbmgTbxQ2H (http://bit.ly/1Yt7I2n) One of the foundational problems in payment networks is that they are mostly uninteroperable. This problem exists at all levels, from consumer payment solutions like PayPal, to national and multi-national banks. This complexity is brought on by the proprietary nature of payment networks, and moving value from one to another requires a negotiation between parties on which common payment network to use in a transaction. We saw similar problems in the early days of the Internet, assembled around protocols which allow for data to be routed and move between networks in a standardized way. We're joined by Stefan Thomas and Evan Schwartz, co-creators of Interledger. This neutral protocol would bring the same level of interoperability we know take for granted around the flow of data, to payments, thus allowing money to move freely across networks. A market maker, who holds accounts in both networks, would receive funds in escrow from a sender, and move funds to an escrow account with the receiver, getting paid by the sender when he shows the proof the funds were delivered to the receiver. Topics discussed in this episode: - What is Interledger and what problem is it trying to solve - Interledger's architecture - How connectors and routing works, and how we may compare it to the way data flows on the Internet - Cryptographic Escrow and its role in Interledger - Requirements for payment solutions to become Interledger compatible - Interledger's community group at the W3C - How Interledger applies to micropayments - Ripple's role in Interledger Links mentioned in this episode: - Interledger: https://interledger.org/ - Interledger Whitepaper: http://interledger.org/interledger.pdf - Interledger + WebTorrent - Demo by Evan Schwartz: https://www.youtube.com/watch?v=525Z7Ck0ffY - Interledger Architecture: https://stackedit.io/viewer#!provider=gist&gistId=f534bfb53dfffb980c66&filename=interledger-architecture.md - Interledger Github: http://github.com/interledger - Interledter Slideshare: http://slideshare.net/interledger - Ripple Labs: https://ripple.com/ - Episode 92 with Stefan Thomas: https://epicenterbitcoin.com/podcast/092/ Sponsors: - Hide.me: Protect your privacy and personal data with a free VPN account at Hide.me/epicenter Show notes: http://epicenterbitcoin.com/podcast/131 SoundCloud: http://soundcloud.com/epicenterbitcoin/eb-131 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: 1E4wyGGWVanUqbGxZvy3PTg2FtxSre7YqX (http://bit.ly/1PMCqNV) A pioneering feature of Bitcoin is verifiability of transactions: It is designed to enable low-power devices and high end computers alike to be able to verify occurrences on the blockchain. This observation led our guest, Adam Gibson, to wonder why webpages aren't so easily verifiable as a Bitcoin transaction? Can I prove to you that I have certain bank account balance over the internet? Why do we submit photocopies of passports rather than furnishing a cryptographically verifiable proof of citizenship by logging on to a Government site? Born out of this intellectual itch is the TLS Notary protocol. It pioneers a new kind of auditing that enables participants to prove that a certain https page was in their browser. This protocol paves the way to brilliant designs for Proof of Reserves, Smart contract oracles and Decentralised fiat-to-bitcoin exchange. Topics covered included: - Why is the current Web structured to be not easily verifiable? - What is TLS and how does it work? - How TLS differs from SSL. - The TLS Notary protocol - Capabilities and limitations of TLS Notary. - Applications of TLS Notary including provably honest smart contract oracles. Links mentioned in this episode: - The TLS Notary website: https://tlsnotary.org/ - Oraclize, the provably honest oracle service: http://www.oraclize.it/ - The TLS specification (TLS 1.0 RFC 2246): https://www.ietf.org/rfc/rfc2246.txt 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 - GTEC: Apply now to enter the GTEC Blockchain Contest and win prizes worth €50k http://epicenterbitcoin.com/gtec Show notes: http://epicenterbitcoin.com/podcast/119 SoundCloud: https://soundcloud.com/epicenterbitcoin/eb-119 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