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 0x6a12f5a99318fe2329869650273d42c29829a9d154e281ed9534e9b6bea705c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e3cfc12-bb55-4656-bbef-a30da62a9118.json and https://artists.proofprofile.net/proofs/artist/0e3cfc12-bb55-4656-bbef-a30da62a9118.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Runaway (Original Motion Picture Soundtrack)
Infinity Chamber (Original Motion Picture Score)
Loved by All (Original Motion Picture Score)
The Valley (Original Motion Picture Score)
Soundwave (Original Motion Picture Score)
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 0xfb0eb77e7fe2783d4109bcdbfacff64e029b5bf200af5abc5eeba5694d7493e3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZAKB2005421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c703c550e814b59d936a21e7fdb9a392a128f698aadb7e87fba995b9a8abb0d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZAKB2006582.
Bowery (Original Documentary Soundtrack)
Brave The Dark (Original Motion Picture Soundtrack)
We Are Guardians (Original Motion Picture Soundtrack)
Tapawingo (Original Motion Picture Score)