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 0x40b6e652b5f50fbd447ddb17077b3fba96ee2641f7df5b041f824315eb1aa33d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96796de7-a7d9-49e5-a824-d8a765285f70.json and https://artists.proofprofile.net/proofs/artist/96796de7-a7d9-49e5-a824-d8a765285f70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x42f9c0f063379730ef824deb97b156ce1a0b4e2169b3847cabcfba43c0e08625. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZRCW6977945.
Backdrop for Springtime Stays - Trumpet and Alto Sax
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d47e101b7024ffc64634c1c190b5585c83bcbcad88538f553035de6b67a6b8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZRCW6977935.
Jazz Ballad - Background Music for Coffee with Team Members
Carefree Piano Jazz - Ambiance for Busy Work
Trumpet Smooth Jazz - Background for Work Cafeterias
Piano Purrs and Scratches: Cats' Tail Twisters
Timeless Tower Chimes: Classical Jazz Music
Peaceful Jazz Piano: Soothing Sounds for Baby Sleep
Swanky Music for Periodic Time - Piano Duo
Music for Energetic Dreams - Bossa Guitar Trio