bitcoin++
← browse profiles

§01 · EVENT BADGES

5 editions attended.

🏴‍☠️ ’26
Berlin payments edition
⚡ ’25
Berlin lightning edition
⛪ ’25
Riga privacy edition
🥷 ’24
Berlin e-cash edition
💊 ’23
Berlin nix-edition

§02 · TALKS & PANELS

On stage.

Full archive →
panel · Berlin 2026

Can Bitcoin Payments Survive the AI Onslaught?

Bitcoin has suffered a series of serious vulnerability exploits in the last few weeks, thanks to increasing capabilities from the AI/LLM models. In this panel, we invite industry and payment veterans to weigh in on whether the open source payments are feasible in the face of increasingly persistent and intelligent adversaries.

45m agenda
panel · Berlin 2025

Scaling Lightning

Scaling Lightning: Running a lightning node is essentially plug and play. Self-sovereign bitcoin and lightning payments have never been easier. So why are blocks so empty? Is this evidence of the lightning network working as intended? Or is the network growth limited by technical, UX, and social challenges?

45m agenda ▶ watch
talk · Berlin 2024

Ecash: New Frontiers in Privacy

Ecash can improve privacy and connectivity. Is it worth the loss of control of custody?

1h 15m agenda ▶ watch
keynote · Berlin 2024

The second renaissance of ecash

The revival of ecash is unlocking a new frontier for digital payments, driving innovation across the Bitcoin ecosystem. In this talk, I will explore the pioneering work being done by developers building applications with this technology. We will examine the cryptosystem behind the Cashu protocol and discuss potential improvements, paving the way for more advanced Chaumian ecash systems in the future.

30m agenda
talk · Berlin 2023

Ecash in the wild

Chaumian ecash is now part of the Bitcoin ecosystem which has sparked renewed interest on this almost ancient technology and how it can be used to build the future of permissionless online payment systems. Today, ecash is often seen as a way of making custodial Bitcoin wallets that give users a tremendous level of privacy. However, as I will outline in this talk, the specific properties of ecash enable a new breed of payment systems that were previously not possible to build. These can range from web components for privacy-preserving paywalls or paid online services, to bearer ecash tokens wrapped into various messaging protocols, to new designs for Bitcoin mining pool payouts that remove the link between the miner and their earned rewards. All of these require a basic infrastructure such as Cashu mints and wallets that process ecash user transactions inside the system, as well as their payments from and to the broader Bitcoin Lightning network. As the context in which ecash is used becomes more diverse and specific to each application, Nix becomes ever more relevant for deploying Cashu in the wild.

30m agenda ▶ watch
whois/callebtc records: public · permanent