1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1c258edd7177ab49bc45b141368632c1fa2a4db9fb5e65f89e4158e93879954f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6216d29e-3806-4a7a-a935-b0c726b448c4.json and https://artists.proofprofile.net/proofs/artist/6216d29e-3806-4a7a-a935-b0c726b448c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zombieland: Original Motion Picture Soundtrack
Ghost Rider: Spirit of Vengeance (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 → block OTSBitcoinBlock must exist at that height 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 0xe462a6071f89ece1adee9e280a45aa13bed710112414c2db1c5e3596d42af27d. 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/US4DG1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ddfebda1a7d5028bc9d2a276fc4ca267c68efa260440994561c5b3ccef1bd3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US4DG1200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dc7ecee36b3f9124a87894792d49ba684a296144fecf9c52c67db71e41ea5f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US4DG1200057.
Hold The Baby/You Can't Live Without Her
Premium Rush (Original Motion Picture Soundtrack)
Sabotage (Original Motion Picture Soundtrack)
Zombieland: Double Tap (Original Motion Picture Soundtrack)
Call of the Buffalo Tallahassee's Goodbye
Ida Red (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cb99b8f4142291b9257a5db1e40dc64ddcc9f408aaf422ab26a4b48534285a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAFW2143887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39635e76d9cc035b5255909cb620191fcc1c7bca64b02694cb10e342efae8157. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM72317488.