TFTC: A Bitcoin Podcast
Tales from the Crypt #123: Bitcoin Sign Guy on Urbit
- Urbit is a functional, deterministic virtual machine designed to make running personal servers easy and to enable peer-to-peer applications without intermediaries.
- Urbit uses its own address space (approximately 4 billion addresses) rather than a blockchain, with a three-tier hierarchy of galaxies (root nodes), stars (infrastructure), and planets (individual users) to enable efficient discovery.
- The Urbit programming language Hoon is functional and strictly typed, allowing developers to build applications with far fewer resources than traditional stacks while maintaining deterministic behavior.
- Bitcoin and Urbit are complementary projects: Urbit provides the secure personal computing layer needed to manage Bitcoin sovereignty without trusting third parties or custodians.
- Urbit's address space is currently registered on Ethereum but is not wedded to it; it could migrate to a sidechain, self-hosted model, or another consensus layer in the future.
- OS1, launching in January, includes chat, blogging, weather apps, and will eventually support Bitcoin node control, wallet functionality, Lightning integration, and atomic swaps.