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 0xa589960053a5f90a925edbfb2c4b2e5a4e2442070137a6b7f74104e00e263baf. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ba413d6-076f-4c4f-94bb-35123deb8aa0.json and https://artists.proofprofile.net/proofs/artist/8ba413d6-076f-4c4f-94bb-35123deb8aa0.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 → 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 0x82cb61dcd755e9a4066c2165b89c1ec95d3bc5859f3e3ad22d2c8321e1e8e003. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQX92205639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ff961793ef6db75b964135e0f092e138319fb649e6926a7393865e52276731. 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/USQX92205640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39bb203a90dbef706a5be4122ce6b5cc22180ed95be07ebc6f9e76f3653d35f. 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/USQX92205641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06240e82a030652206dcc2ae5e3cfcab92249bdbd286f1aff0a9579894eb4c3f. 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/USQX92205642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7666e194cc7f09cb1cab737ee739c0ac7ce457a377759366f6f54dc9d9a578. 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/USQX92205644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae5c8acb5f846fe522dedc2fa93b0433b1c96bc577463689287f493998efec6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USQX92205648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b1f3fa96be90e2e2b230a3b46dc8e752d238b85d014fccd3c4d4c2e03c0a65. 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/USQX92205649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e16eb83eea07c4a1e3b862c210827c3c0fc0f1b97aeb7f796758ef139352191. 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/USQX92205651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc110d343cccd31a88294d52a11acde0b231d3ed4eb7c73710029a5da737634. 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/USQX92205652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8206de980552e92088c01fbf6dc9e10a8d81ebe7973f7f6264b53b312f8a31ab. 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/USQX92205654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18461cf1694f3f56fd3c5f15d224e57c507732b6efc7f5865bfee6736123cd0. 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/USQX92205655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fdc753d4764dd7921775830c022db02e927b486feac3f598a28e8919ff8614a. 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/USQX92205659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56967b121f7b70f67aa6120403ed9e21233e494ea48f8f275089a9aad1bcd8b3. 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/USQX92205661.
Breaking Surface (Original Motion Picture Soundtrack)
An African Election (Original Soundtrack)
Tierra de Sangre (The Original Motion Picture Sountrack) (The Vineyard)