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 0x73fbf8aa9c5087ee6fd47d72cfb39dcbf9908c75a04142fd01888b7a0624d69c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6cb371c-26d2-4a2f-8ea5-bd802ae64f54.json and https://artists.proofprofile.net/proofs/artist/c6cb371c-26d2-4a2f-8ea5-bd802ae64f54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Buenos Aires Vista Desde un Edificio Muy Alto
Nadie se salva solo (Música por la Patagonia Argentina)