3 tagged notarization, measured the same way as everything else here.
thetangstr/clockchain-developer-tools
Skill Claude CodeCodex
Use when an agent must act at a verified future time and prove it — or timestamp/verify any event — via Clockchain. Covers the zero-creds hosted-MCP alarm flow and the full client-side SDK alarm, plus the operational invariants that prevent early fires and false anchors.
GitSerge-crypto/aotrust-skills
Skill Claude CodeCodex
Issue a cryptographic proof (PDR) that a digital artifact existed at a specific time. Pay $0.01 USDC on Base or Solana via x402 (MCP); optional evidence bundle $0.02 and signed time attestation $0.002. Receipts are leaves in an append-only Merkle log anchored hourly to NEAR blockchain; inclusion and consistency proofs…