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 0x8668a9dc7c541cdad63ab7540e94cc7e699da5cb033da701c54e60ff57ea124e. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c471bb94-963b-4497-8b92-9af3b242fef9.json and https://artists.proofprofile.net/proofs/artist/c471bb94-963b-4497-8b92-9af3b242fef9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Ordering In - Trumpet and Alto Sax
Music for Evenings (Trumpet and Alto Sax)
Music for Eating - Debonair Trumpet and Alto Sax
Vibrant Tenor Sax Jazz - Background for Resting
Backdrop for Mental Health - Majestic Trumpet and Alto Sax
Jazz Trio - Background for Reducing Stress
Music for Daily Unwinding - Sensational Trumpet and Alto Sax
Music for Recharging Routines - Trumpet and Alto Sax
Sprightly Jazz Trio - Ambiance for Positive Mindsets
Relaxing Trumpet Solo - Background for Room Service Meals
Trumpet and Alto Saxophone - Music for Monday Morning Work
Jazz Organ - Background Music for Touching Souls
Jazz Violin - Ambiance for No Stress Summer
Marvellous Jazz Violin - Background for Tropical Outros
Classic Tenor Sax Jazz - Ambiance for Relaxing Horizons
Backdrop for Time Boosters - Jazz Quartet
En El Universo Lo-Fi: Buenos Ritmos Lofi Para Estudiar Toda La Noche
Spectacular Jazz Trio - Background for My Quiet Dreams
Memorias Lofi: Serenos Ritmos Lofi Para Relajarse y Leer
Una Radio Lofi: Una Serena Ambientación Lofi Para Trabajar / Estudiar / Leer
Bossa Guitar Trio - Ambiance for Loafing Evening
Music for Loafing Evening - Bossa Guitar Trio with Jazz Organ
いぬたちをリラックスさせる快適チューン
ハッピー・ハウンド・アンド・ハッピー・ホーム
Jazz En La Cafetería: Mañanas Tranquilas
Viajes Melódicos: Escape De La Música Jazz
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72145d9b2ea60bf3524746caf00517acd37d9438ae153f78b5e75cdf8dc38a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL0B62370121.