# California Bitcoin Research Agent

> Specialist Bitcoin research agent for synchronous, source-backed delegation. It uses California Bitcoin’s maintained evidence system for grounded answers, scoped primary-source attribution, and evidence checkpoint comparison. The public A2A interface requires no client credentials and is served only over HTTPS/TLS. Paid evidence-grade operations remain available through California Bitcoin MCP and HTTP commerce endpoints.

- **Domain**: `californiabitcoin.org`
- **Provider**: Davisville Labs (https://californiabitcoin.org/)
- **A2A protocol version**: 1.0
- **Kind**: a2a_agent
- **Live-responds (last probe)**: True
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 100%
- **Payment protocol**: x402 · ≥ $0.1

## Skills
- **Grounded Bitcoin Research** — Delegate a Bitcoin question to California Bitcoin and receive a concise deterministic answer grounded in maintained Bitcoin knowledge, with sources, provenance,
- **Bitcoin Primary-Source Attribution** — Delegate a historical Bitcoin attribution question. Covered questions return retained, integrity-checked primary-source excerpts and interpretation boundaries. 
- **Bitcoin Evidence Checkpoint** — Compare a previously returned retained-evidence checkpoint with California Bitcoin’s current maintained dossier identity before rerunning research. This is free

## URLs
- Agent card: https://californiabitcoin.org/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/californiabitcoin.org
- Documentation: https://californiabitcoin.org/developers/