Dev.to
6/16/2026

AI agents hallucinate. Here is how to cryptographically notarize their output for $0.01
Short summary
AOTrust cryptographically notarizes AI agent outputs for $0.01 per proof using blockchain anchoring. It proves artifact existence at a specific time by capturing the hash, timestamp, and on-chain payment anchor without uploading the actual work. Three-step integration: hash locally, request notarization, pay in USDC, receive cryptographic proof.
- •Solves AI output verification with cryptographic proofs anchored to blockchain
- •Costs $0.01 per proof via HTTP 402 payment protocol, cheaper than existing oracle solutions at $0.25–$1.00+
- •Three-step integration for any agentic workflow in Python, TypeScript, or Rust
Generated with AI, which can make mistakes.
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