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It's all about Bitcoin! Longest running Bitcoin meetup in the world. Have fun socializing and learning more about Bitcoin.

Upcoming events (4+)

Berliner Bitcoin-Stammtisch @ Friedel Richter

Location visible to members

Bitcoin-Stammtisch Berlin - Friedel Richter edition

The "Berliner Bitcoin-Stammtisch" is a gathering of business beings, developers and activists who work with the digital currency called "Bitcoin", the official legal tender in the country of El Salvador. If you are new to Bitcoin you should start here. We are always happy to teach, talk and help!

Our meetup location currently is the restaurant Friedel Richter at Torstraße, as ROOM77 is closed until the last block is mined. Payment in Bitcoin ₿ and Lightning ⚡accepted!

If you can't attend in person, try your luck online: https://meet.fulmo.org/BitcoinStammtischBerlin


This is the place to be for people who believe that Bitcoin will rock the world and will be part of the next big revolution in the financial world.

Bitcoin Socratic Seminar Berlin

CODE University of Applied Sciences

This is the Bitcoin Socratic Seminar by BitDevs.Berlin.
We're glad to be hosted by Code University.
Last entry will be at 19:05, please be there on time.
The monthly Socratic Seminar events are formatted to foster debate, information sharing and lively discussion. In the weeks preceding the event, discussion topics are collated by meetup members from a variety of sources: pull requests in popular git repositories (e.g. Bitcoin Core, lnd, c-lightning, Joinmarket, Elements Alpha and Electrum), research papers, technical blog posts, IRC logs, network monitors and more. To complete the meeting, members present open source projects, companies, research and other relevant materials. A feedback and Q&A section follow.
More information can be found here: https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar
This event is co-hosted by

To create a safe space for the open exchange of knowledge and ideas, this event will not recorded.
--- remote participation
We'll try to simultaneously stream on Jitsi for people who can't be with us in Berlin.

  • The event is at https://meet.fulmo.org/SocraticSeminarBerlin#config.startWithAudioMuted=true&config.startWithVideoMuted=true
  • We ask you to not record the event (audio, video or even screenshots).
  • We will not record anything ourselves either, but you will be able to find all the links we are discussing on https://bitdevs.berlin within 24 hours of the event.
  • You can speak about what you heard at the event but you can not attribute it to a specific person (see Chatham House rules)
  • To save bandwidth for everyone please keep your video off.
  • Feel free to use the chat as much as you like but keep in mind the moderator cannot monitor it all the time.
  • Use the 'raise hand' feature if you want to participate in the discussion.
  • If you don't have a microphone please address the second moderator, who is idle at the time, with your question in the chat.

Bitcoin am Holzmarkt

Café Holzmarktperle

English, see below.

Willkommen beim Bitcoin Meet-up im Café Holzmarktperle (Holzmarktstraße 25).

Die Berliner Community kann einfach nicht genug davon bekommen über Bitcoin zu reden. :) Deshalb bieten wir dieses Meet-up als weitere Option neben dem etablierten “Berliner Bitcoin-Stammtisch @ Friedel Richter” an. Langfristig soll das Café Holzmarktperle auch ein Ort für spezielle Bitcoin Veranstaltungen und Workshops werden.

Jeder ist willkommen - Bitcoin-Anfänger, Enthusiasten, etc. Wir freuen uns auf den gemeinsamen Austausch mit anderen Plebs in lockerer Runde und gemütlicher Atmosphäre und beantworten auch gerne eure Fragen.

Natürlich könnt ihr im Café mit Bitcoin ₿ und Lightning ⚡bezahlen.

Dies ist der richtige Ort für Menschen, die glauben, dass Bitcoin die Welt verändern kann und Teil der nächsten großen Revolution in der Finanzwelt sein wird.

Welcome to the Bitcoin meet-up at Café Holzmarktperle (Holzmarktstraße 25, Berlin).

Since we can’t get enough of talking Bitcoin we are offering this meet-up as a another option in addition to the established Berliner Bitcoin-Stammtisch @ Friedel Richter. In the long term we also envision Café Holzmarktperle to become the place for special events and workshops.

Everyone is welcome - Bitcoin beginners, enthusiasts, … you name it. We are always happy to meet with other plebs, teach, talk and help!

Payment in Bitcoin ₿ and Lightning ⚡accepted!

This is the place to be for people who believe that Bitcoin will rock the world and will be part of the next big revolution in the financial world.

Profits Over Justice: The Disturbing Bitcoin Prosecution of Roman Sterlingov

Café Holzmarktperle

Diese Veranstaltung wird auf Englisch durchgeführt. Deutsche Beschreibung am Ende.


"The United States government wrongfully accuses Swedish citizen Roman Sterlingov of administering the crypto-mixer "Bitcoin Fog" and laundering $330 million of criminal proceeds through it over the course of a decade. However, there isn’t a single piece of evidence that Roman ever operated Bitcoin Fog. He was merely an innocent user of the service securing his privacy interests. Nothing about this case adds up except the profit motives of the investigators and companies involved. Roman faces 50 years to life in prison based on speculative, uncorroborated blockchain forensics conducted at desks thousands of miles away from Sweden. Denied bail, he has languished in jail for over two years awaiting his September 9, 2023, trial."

Hear Roman’s lawyers dissect this Kafkaesque nightmare and explain why everyone in the Bitcoin community should be concerned about this American prosecution gone awry.

More background on this WIRED article: https://www.wired.com/story/bitcoin-fog-roman-sterlingov-blockchain-analysis/

About the speakers:

Tor Ekeland is the managing partner of Tor Ekeland Law, PLLC, where he leads the firm's Computer Law, Trial, and Appellate practices. He is well-known for representing hackers and white-collar defendants in federal criminal court and on appeal. Tor also advises businesses and individuals under investigation by the US Department of Justice and those seeking advice on compliance with US computer laws. Prior to starting his own firm, Tor worked at Sidley Austin, LLP in New York City, where he gained experience in US securities laws and complex commercial litigation. He has extensive experience representing clients in federal courts across the United States, dealing with the Computer Fraud and Abuse Act (CFAA), national security issues, and government surveillance. Tor is admitted to practice in various federal district courts and federal appeals courts, as well as the United States Supreme Court. He is frequently sought out by national and international media outlets for commentary on computer law issues.

Michael Hassard is an associate attorney at Tor Ekeland Law, PLLC. He is a member of the Computer Law and Federal Trials practice group and specializes in advising clients on federal litigation, federal agency investigations and enforcement actions, and federal criminal trials related to computer law. He has experience in managing matters at the intersection of computer and financial law, including the Computer Fraud and Abuse Act (CFAA), the Money Laundering Control Act (MLCA), the Bank Secrecy Act (BSA), the Digital Millennium Copyright Act (DMCA), and Blockchain guidelines. Before joining Tor Ekeland Law, Michael completed his Canadian articles at a boutique firm in Toronto and worked as a law clerk at a federal discrimination practice in Midtown Manhattan. He holds a law degree from Hofstra Law School and is admitted to practice in the State of New York and several United States District Courts.

Deutsche Beschreibung:

Die US-Regierung beschuldigt den schwedischen Staatsbürger Roman Sterlingov zu Unrecht, den Krypto-Mixer "Bitcoin Fog" zu verwalten und über einen Zeitraum von einem Jahrzehnt 330 Millionen US-Dollar an kriminellen Erlösen durch diesen gewaschen zu haben. Es gibt jedoch kein einziges Beweisstück dafür, dass Roman jemals Bitcoin Fog betrieben hat. Er war lediglich ein unschuldiger Benutzer des Dienstes, der seine Datenschutzinteressen sicherte. Nichts an diesem Fall ergibt Sinn außer den Gewinnmotiven der beteiligten Ermittler und Unternehmen. Roman steht aufgrund spekulativer, unbestätigter Blockchain-Forensik, die Tausende von Kilometern von Schweden entfernt durchgeführt wurde, 50 Jahre bis lebenslange Haft bevor. Er wurde ohne Kaution festgehalten und wartet seit über zwei Jahren auf seinen Prozess am 9. September 2023.

Hören Sie, wie Roman's Anwälte diesen kafkaesken Albtraum auseinandernehmen und erklären, warum jeder in der Bitcoin-Community besorgt sein sollte über diese fehlgeleitete amerikanische Strafverfolgung.

Weitere Hintergründe in diesem Artikel von WIRED: https://www.wired.com/story/bitcoin-fog-roman-sterlingov-blockchain-analysis/

Past events (185)

Bitcoin am Holzmarkt

Café Holzmarktperle