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 0x4a89bd41edbc66d1b9f2e28735f957a511e5686f79d757dcfb090848cef3191e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/691b5e0f-f775-41d4-b003-eaafb504acdb.json and https://artists.proofprofile.net/proofs/artist/691b5e0f-f775-41d4-b003-eaafb504acdb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spa Y Piano: Lluvias Purificadoras Para El Alma Vol. 1
Salón De Jazz: Melodías Suaves Para La Cafetería
Melodías De Spa: Música De Jazz Con Melodías Para El Café
Jazz Para Dormir: Sonidos De Cafetería Para Dormir Bien
Cafetería Cafeinada: Latte Delicioso Con Jazz
Ritmos De Esquina De La Calle: Música De Jazz Ambiental
Sinfonías Urbanas: Crepúsculo De La Música Jazz
Melodías Clásicas: Música Del Jazz De La Era Dorada
Grooves Suaves De Jazz Para Momentos De Relajación Por La Noche
Melodías Serenas De Jazz Para Una Reflexión Pacífica