Elsirion is a Crypto-Anarchist and aspiring Cypherpunk developing mostly on Rust and researching cryptography and distributed systems with the goal of making Bitcoin more private and accessible at the same time. He is interested in everything that enhances personal freedom.

Day 2 | DEV Track | 4:45 - 5:10

Improving Bitcoin Privacy with Federated E-Cash Mints

Lightning, while being a huge improvement, still has a scaling, privacy and accessibility problem. Channel management is expensive and tedious, leading to many users choosing custodial services, sacrificing privacy and censorship resistance. Federated E-Cash Mints on top of Bitcoin and Lightning, based on the anonymous e-cash ideas by David Chaum, solve these problems in two ways:
1 - Custodianship of the backing funds is distributed over the federation members, preventing censorship and theft by single entities
2 - User access to funds is granted through anonymous e-cash tokens issued by the federation
This allows for a set of not fully trusted parties (e.g. local community members) to run a semi-custodial, anonymous Lightning wallet service, fully interoperable with everyone else.

Dive deeper

Read - Fedimint


Watch - Fedimint with elsirion and Smuggler at HCPP21

Fedimint with Elsirion and The Smuggler at HCPP21

Read - Federated E-Cash as a Bitcoin Scaling Technology

Federated E-Cash as a Bitcoin Scaling Technology


Lightning only

Tickets for this event can be paid with bitcoin over Lightning only.

Ticket Schedule

Late Mover from November 1 $300



Adopting Bitcoin

Sheraton Presidente
Ave. La Revolucion,
San Salvador, El Salvador