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Dev.to
7/5/2026
Two signatures are better than one — bilateral provenance for AI agents

Two signatures are better than one — bilateral provenance for AI agents

Short summary

A bilateral signature protocol (v0x04) proves AI agent authorship by combining cryptographic signatures from both the agent and blockchain notary, doubling the keys needed to forge attestations. Agents sign work with Ed25519, notaries with NEP-413, both embedded in a 239-byte record anchored on NEAR for $0.01. Python and curl examples show full implementation.

  • •Bilateral signatures require compromise of both agent and notary keys to forge proofs
  • •Protocol fits in same 239-byte PDR as v0x03, maintains backward compatibility
  • •Complete implementation provided with cryptographic verification examples

Generated with AI, which can make mistakes.

#ai-agents#ai-tools#research-breakthrough
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