AT1C is an open protocol for cryptographically verifiable human authorisation

The AT1C Protocol, an open standard for cryptographically verifiable human authorisation, has released version 1.4 of its whitepaper and technical specification, including EU AI Act compliance mapping and an Algorand x402 payment architecture. The protocol aims to establish sovereign identity and human-first AI through open standards, with a live registry at registry.at1c.com and an npm SDK available.

Start here. Most important documents listed first. AT1C Protocol Whitepaper v1.4.docx — Word document, full whitepaper including EU AI Act compliance mapping, sector analysis, cost comparison, and Algorand x402 payment architecture. whitepaper.md — Markdown version of the same whitepaper, readable directly on GitHub. manifesto.md — AT1C's founding principles: sovereign identity, human-first AI, open standards. protocol.md — Full technical specification v1.4: entities, receipt structure, verification rules, cryptographic guarantees, EU AI Act mapping, SDK reference, roadmap. | Document | Description | |---|---| | receipts.md /at1c-protocol/at1c-protocol-official/blob/main/docs/receipts.md signatures.md /at1c-protocol/at1c-protocol-official/blob/main/docs/signatures.md verification.md /at1c-protocol/at1c-protocol-official/blob/main/docs/verification.md scopes.md /at1c-protocol/at1c-protocol-official/blob/main/docs/scopes.md agent-execution.md /at1c-protocol/at1c-protocol-official/blob/main/docs/agent-execution.md policy-engine.md /at1c-protocol/at1c-protocol-official/blob/main/docs/policy-engine.md Live registry: registry.at1c.com https://registry.at1c.com/health Register an agent: at1c.com/users/register-agent.php https://at1c.com/users/register-agent.php npm SDK: @at1c/sdk https://www.npmjs.com/package/@at1c/sdk SME compliance guide: at1c.com/compliance.html https://at1c.com/compliance.html © 2026 AT1C Protocol Contributors · MIT Licence