Signing Room
Coordinates Bitcoin multisig teams in real-time, merging PSBTs instantly with end-to-end encryption and ephemeral rooms.
A real-time coordination tool for Bitcoin multisig teams, replacing manual PSBT file sharing via email or Slack. It enables instant merging of partially signed transactions, with end-to-end encryption and ephemeral rooms. The product targets organizations and teams that require secure multi-signature governance, including board members and founders. It is positioned as a non-custodial, open-source solution that enforces privacy and assembly rights through cryptographic guarantees, with a free public service and enterprise licensing.
Key features
- Real-time PSBT merging
- End-to-end encryption (AES-256-GCM)
- Ephemeral rooms with no logs
- M-of-N multisig consensus
- Non-custodial key management
- Open-source (AGPL v3)
- TypeScript SDK
- Web component
- Hardware wallet compatibility
- Audit trail generation