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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea09ce0ba34edff569753003a4bf16b015a36673abb4bf763413ea0d3841f92e. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08c97e8d-97b2-4ad6-a650-7e6e54cbeaf4.json and https://artists.proofprofile.net/proofs/artist/08c97e8d-97b2-4ad6-a650-7e6e54cbeaf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Beautiful Day in the Neighborhood (Original Motion Picture Soundtrack)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb4f5ff1b69db79b4d49ee915a6467bc0b4e851e0bdcdcdd6f735a9e158948a. 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/US4DG1900581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7fede404f93c2cd0f856dab9ed8ec78de69292f11fa4ccb032036301caad2a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/US4DG1900584.
You Are My Friend (contains interpolations of "It's You I Like" and "Am I A Mistake?")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1926b08312fad65c56a0b6ff23030644073069ed3f734f6a33b1d10a5fd45c37. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/US4DG1900592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf9c0194ff504058825f187d00eed65c0d548eaf7e906c7f474243237fac6a. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/US4DG1900594.
Fred At The End (contains interpolations of "It's You I Like")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05c2ef9017d0155a27a24551b3274b41fa12eeb57902c2f347d6729fe8a0041. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US4DG1900596.
Ashes Into The Sea (From Sophie Jones: Original Motion Picture Soundtrack) [Extended]
Nightbitch (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d353a27449da6e348d49090563eab3783c7ec06eb21284d7322766f19cf14a. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USHR12449197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ed53736fa38d2d72a1144b20561ecf46e67c0f4d0d69bc20848fe95d45ae0a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USHR12449222.
Turn Me On (Original Motion Picture Score)