Ako or AKO may refer to: Places Akō, Hyōgo, a city located in Hyōgo Prefecture, Japan Akō District, Hyōgo, a district located in Hyōgo Prefecture, Japan Ako, Cameroon, a town in Cameroon Ako, the Jap
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7502850ad1e7fc0f10cca54c965736d8411ab68d5f65f98adf7d99f0a97e3bc2. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bd9fc8f-4173-433f-ab19-b8aff2477ff9.json and https://artists.proofprofile.net/proofs/artist/2bd9fc8f-4173-433f-ab19-b8aff2477ff9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).