1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fff96df842640d265fb690611c2883e714f6fb8f99a3bcc4ac7a0f87522bdd. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/245226c2-103d-4551-b376-a2d57f77e7b6.json and https://artists.proofprofile.net/proofs/artist/245226c2-103d-4551-b376-a2d57f77e7b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Billy Rose's Diamond Horseshoe: The More I See You
Orfeu de Conceicao: Someone to Light Up My Life
Where Or When: Babes in Arms: Where or When