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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7316325434f3cce16a3df8a23c0ea550075fd28d208d46a8b4a8fdfd922d7b90. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13465caf-4fff-47fc-affc-5b2bd50c31a7.json and https://artists.proofprofile.net/proofs/artist/13465caf-4fff-47fc-affc-5b2bd50c31a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cuna De Jazz: Serenatas De Piano Para Bebes
Piano De Medianoche: Música De Jazz Lenta Para La Relajación
Ritmos De Jazz: Canciones De Cuna Para Las Mascotas
Serenidad En Jazz: Relajación En El Café Lounge
Luces De Música Jazz: Clave De Baile De Medianoche
Oasis Sonoro: Jazz Relajante para Descansar
Clásicos De Salón Jazz: Sonidos Elegantes Para La Noche