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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00c57bf1c6190d0ccdaae49d77e1eb97fd519f2449a0b96a323f84dc900c43b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27b946c3-3e9c-4e17-89ca-a6996a89a795.json and https://artists.proofprofile.net/proofs/artist/27b946c3-3e9c-4e17-89ca-a6996a89a795.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Boom Bap Type Beat - I Don't Care About The Boss
Boom Bap Type Beat - Le Son de L'indépendance
Boom Bap Type Beat - Mystère et Suspense