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 0x5ca234acbd397c4f5c36bcaf3865ed20b530985e543091e13453a6e4807d78f2. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1590f4fd-ef74-40f6-bb24-f40f06154070.json and https://artists.proofprofile.net/proofs/artist/1590f4fd-ef74-40f6-bb24-f40f06154070.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 0x64c9dc5858848de8932d8408903c3bd77c8b247eca7fda6870dd289302e84610. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKG3H2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec03e2dec93727d8418ba0447ae92236a1cab9054910e0e7a7db8a52210c3620. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aed74cfccb9a2ce20cd27313d396af79464c03cb9509276dc25e665b86d8fd9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc993b435115cd4484852fddde6cab6544fa799b7b104fa6ecc9f89bb0d633d10. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd547cfe3968a42f68e21d9c468cbca2771d0baad1f8bc51f482b727aa7aaf4cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6307dce85eb3dffc5cb8c12895d35b3c79aeb274f7d146802dc8af317c178c15. 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/UKG3H2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c7aa78a704ab5c192aaebad9430c303ff2226ec6511e7e7ccb9a5f5173bf98. 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/UKG3H2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f03a433c827c2372ea22057890973b70c1f7ab6db1cda84871a5129834126fd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3eea2e9e4ad7852a81c2d333c785dda1cc48abee0f16694f39a03584b7e436. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKG3H2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c9dc5858848de8932d8408903c3bd77c8b247eca7fda6870dd289302e84610. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKG3H2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58483c2d3f9583bea68455f6812f62c06ee05702bfefad9c15f430ebb976015d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBEEJ1200690.
Death of a Superhero (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c822d0666b5bfa77886efe231e48cefaf2e0fc504c59f7b0bc878161f12fee7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA301136411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b526ac1872be9878dc16d7e191a97e6a7e5c8263c36bad29dfdc8914677c1f. 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/DEA301136431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878b356da3b9e94bcf25dbecb62386274297eb176b7bb7d1fabd04d656e2b8f4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA301136461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37482710e0bf1d57f2ebbf986efa8d425278f30ee2209bdb5c2e4fce0eaf5209. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEA301136541.
Am Ende eines viel zu kurzen Tages (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502ebbd80cced0ab366bcfdbf0e6e30ffc8c910f7fa14aa4893dfa0db1c00821. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUAP10900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d63ca21e63d98df7c4917a6a6af26204090a5d208cdcbd547fb754ccc5c123c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA301136460.
The Mark Radcliffe Folk Sessions: The Furrow Collective (Live)
Rivers,Rushes, Rodents & Regicide: Songs & Tunes from the Leigh Folk Festival 2015