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 0x38e2b54d8234f1716ebf8908cc509f9b7503bbb6fe6ad32d3cfba2ae2b065016. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f752fbb-3ba8-4623-bb7e-1844f74edea2.json and https://artists.proofprofile.net/proofs/artist/1f752fbb-3ba8-4623-bb7e-1844f74edea2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tú Vives, Yo sé que Él vive (Saxophone Version)
I Believe, Creo en Dios (Saxophone Version)
Urban Sax Collection, Vol. 1 (Saxophone Version)
DeBÍ TiRAR MáS FOToSax (Saxophone Version)