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June 2019


Hjalmar van der Schaaf is CEO of the Blockchain logistics startup CargoLedger, which was selected by the Port of Rotterdam’s PortXL World Port Accelerator program. He previously worked as program and project manager for Telfort, KPN, Liberty Global, Optiver and Dexia Bank.

Bitcoin Wednesday 72

The 72nd edition of Bitcoin Wednesday held in Amsterdam on 5 June, 2019 took a special close look at our — and the world’s — favorite cryptocurrency, Bitcoin.    

May 2019

Developing Bitcoin Core

Kalle Alm is a Swedish Bitcoin Core contributor who lives in Tokyo. He is a lead developer at the Tokyo-based Digital Garage, which builds blockchain solutions.

Black Market Money

Eric Voskuil leads the Libbitcoin project, an open source high-performance Bitcoin developer toolkit. He is a serial entrepreneur, angel investor, martial artist, motorcyclist, world traveler, and former fighter pilot for the U.S. Navy. He has been a Bitcoin developer since 2014.

Atomic Swaps

Kilian Rausch is Product Director of Exchange Union, a decentralized network that links digital asset exchanges. He hold a Master’s degree in Information Systems from the Technical University of Munich and was previously Product Manager of Mobi, a global and mobile wallet designed for everyday people, at the Hong Kong-based exchange BTC China.

Advanced Key Management

Munich-based CryptoAdvance co-founder Stepan Snigirev is a quantum physicist who turned his attention to the cutting edge of Bitcoin protocol developments. He will talk about the standard key management policies used in hardware wallets and how he aims to improve them.

Bitcoin Wednesday 71

The 71st edition of Bitcoin Wednesday will be held in Amsterdam on 1 May, 2019. Please RSVP as soon as possible if you want to attend. The complete program for this […]

April 2019

Ergo Platform

Cryptocurrency pioneer Alexander Chepurnoy, aka kushti, is a Core Developer for a new cryptocurrency, Ergo. He has been involved with Bitcoin since 2011 and has been developing cryptocurrency-related software since early 2013.  He was previously a NXT core developer, a smartcontract.com co-founder, and then a research fellow at IOHK.


Arthur Breitman is a Co-Founder of Tezos, a blockchain platform that offers on-chain governance. It raised $232 million in its crowd sale in 2017 making it one of the largest in the industry. He previously worked at Google X and Waymo on self-driving cars, and before that, as a quantitative analyst at both Goldman Sachs and Morgan Stanley.

Bitcoin SV

Jimmy Nguyen is Chair of the Strategic Advisory Board for nChain which holds hundreds of blockchain-related patents and patent applications. He is formerly an intellectual property and digital technology lawyer who was previously a partner at three U.S. law firms, Foley and Lardner, Wildman Harrold and Davis, Wright, Tremaine. He currently serves as Founding President of the Bitcoin Association, a new organization that pursues “massive on-chain scaling” with Bitcoin SV, which it calls “the original Bitcoin protocol”.