# Proof21 / English

> Pre-alpha. Documentation and a synthetic offline demonstration only. No production SDK, live MCP/API, paid service, token or catalog listing.

- [Agent setup guide](https://proof21.xyz/agents/start.md)
- [Agent permissions and boundaries](https://proof21.xyz/agents/permissions.md)
- [Machine-readable resource index](https://proof21.xyz/agents/resources.json)

- [Bitcoin-native. Agent-to-agent.](https://proof21.xyz/)
- [Resources for agents and platforms](https://proof21.xyz/agents/)
- [Explicit inputs. Inspectable outputs.](https://proof21.xyz/api-reference/)
- [See what a check can catch.](https://proof21.xyz/demo/)
- [Trace the boundaries.](https://proof21.xyz/diagrams/)
- [Welcome to Proof21](https://proof21.xyz/docs/)
- [Build and contribute](https://proof21.xyz/docs/build/)
- [HTTP API design](https://proof21.xyz/docs/build/api/)
- [Website and agent discovery](https://proof21.xyz/docs/build/discovery/)
- [Publishing and the full website](https://proof21.xyz/docs/build/publishing/)
- [Conformance and release gates](https://proof21.xyz/docs/build/tests/)
- [Capabilities](https://proof21.xyz/docs/capabilities/)
- [Financial action checks](https://proof21.xyz/docs/capabilities/check/)
- [Choice and audit sampling](https://proof21.xyz/docs/capabilities/choice/)
- [Commitments and timestamps](https://proof21.xyz/docs/capabilities/commit/)
- [Bitcoin and DMT Elements](https://proof21.xyz/docs/capabilities/elements/)
- [Proof21 foundation and build plan](https://proof21.xyz/docs/foundation/)
- [Integration map](https://proof21.xyz/docs/integrations/)
- [SDK, MCP, and agent discovery](https://proof21.xyz/docs/integrations/agents/)
- [TAP, Trac, and Ordinals](https://proof21.xyz/docs/integrations/bitcoin-stack/)
- [Agent distribution and integration targets](https://proof21.xyz/docs/integrations/catalogs/)
- [x402 and commercial evidence](https://proof21.xyz/docs/integrations/payments/)
- [For blockchain partners](https://proof21.xyz/docs/partners/)
- [Usage economics and token roadmap](https://proof21.xyz/docs/partners/economics/)
- [Integration pilot](https://proof21.xyz/docs/partners/pilot/)
- [Protocol architecture](https://proof21.xyz/docs/protocol/)
- [Evidence and report model](https://proof21.xyz/docs/protocol/evidence/)
- [Scale and Bitcoin timing](https://proof21.xyz/docs/protocol/scaling/)
- [Security and trust boundaries](https://proof21.xyz/docs/protocol/security/)
- [Verify, evaluate, accept](https://proof21.xyz/docs/protocol/verification/)
- [Reference](https://proof21.xyz/docs/reference/)
- [Proof21 — Brand Identity v1.1](https://proof21.xyz/docs/reference/brand/)
- [Glossary and FAQ](https://proof21.xyz/docs/reference/glossary/)
- [Diagrams and motion](https://proof21.xyz/docs/reference/motion/)
- [Research sources and boundaries](https://proof21.xyz/docs/reference/sources/)
- [Research sources and boundaries](https://proof21.xyz/docs/sources/)
- [Start here](https://proof21.xyz/docs/start/)
- [Offline demo](https://proof21.xyz/docs/start/offline-demo/)
- [Quickstart](https://proof21.xyz/docs/start/quickstart/)
- [Status and roadmap](https://proof21.xyz/docs/start/status/)
- [Vision and principles](https://proof21.xyz/docs/start/vision/)
- [One protocol.
Across systems.](https://proof21.xyz/integrations/)
- [Fewer claims. Better evidence.](https://proof21.xyz/journal/)
- [Audit the batch before the sample.](https://proof21.xyz/journal/audit-the-batch-before-the-sample/)
- [A fair choice starts before the random number.](https://proof21.xyz/journal/choice-without-rerolls/)
- [Digital matter is a rule, not a verdict.](https://proof21.xyz/journal/digital-matter-is-a-rule-not-a-verdict/)
- [Discovery is not authorization.](https://proof21.xyz/journal/discovery-is-not-authorization/)
- [Interoperate without erasing the evidence.](https://proof21.xyz/journal/interoperability-without-erasing-evidence/)
- [Let agents explain. Let controls decide.](https://proof21.xyz/journal/let-agents-explain-let-controls-decide/)
- [Measure the job before the token.](https://proof21.xyz/journal/measuring-demand-before-a-token/)
- [One artifact. Three different decisions.](https://proof21.xyz/journal/one-artifact-three-decisions/)
- [Settlement is not the whole workflow.](https://proof21.xyz/journal/settlement-is-not-the-workflow/)
- [What a Bitcoin timestamp can actually say.](https://proof21.xyz/journal/what-a-bitcoin-timestamp-proves/)
- [Bitcoin foundations.
Agentic coordination.](https://proof21.xyz/litepaper/)
- [Keep your stack. Make the evidence travel.](https://proof21.xyz/partners/)


[Proof21 — agent resources](https://proof21.xyz/agents/overview.md)


## Website policies

- [Privacy](https://proof21.xyz/markdown/legal/privacy.md)
- [Terms](https://proof21.xyz/markdown/legal/terms.md)
- [Cookies](https://proof21.xyz/markdown/legal/cookies.md)