Can you prove your AI agent was authorized before it acted — not after? Authproof creates cryptographic delegation receipts before every agent action. Tamper-evident log. HIPAA, SOC2, EU AI Act compliance exports. Multi-tenant support for managed AI companies. Free tier — 1,000 receipts/month. No credit card. Audit logs are post-hoc evidence. Receipts are pre-hoc constraints.​​​​​​​​​​​​​​​​