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 0xe667cdd64c81c4bb6bcd3610967d19a1cb7a7c73a97a1273ded8329c9ebae658. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e41894b3-3b0d-4a25-958e-b89c778ea551.json and https://artists.proofprofile.net/proofs/artist/e41894b3-3b0d-4a25-958e-b89c778ea551.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pequeñas Melodías Para La Relajación Del Bebé
Colección De Melodías Para La Siesta De Los Bebés
Primer Concierto De Bebé: Alegres Melodías
Canciones Suaves De Noche: Música Para Dormir Al Bebé