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 0x24abe780d9f41e3dd1897beddd18ee89400ef81aea7d2f1b4e2a7f1c0ddbe418. 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/749d7c6f-d24f-4fa8-9e12-89e8109b2a9d.json and https://artists.proofprofile.net/proofs/artist/749d7c6f-d24f-4fa8-9e12-89e8109b2a9d.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 0xee7b3d2a6d461b21b1b5f9826b74fc9be8fc0537cdaccc10b0197f1140903593. 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/GBKPL1969418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c89a7c58447279f234048da6de444d1291323f8423733d7945e559405c389a. 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/GBKPL1979390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95095be0a7f1bb8d396c9af8e723812f86d906ca5f85cce676ac3f1298ee1769. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:32:23Z), 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/GBX722000445.
Gone Are the Days - Live at St Pancras Old Church, London, 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d91f1e4ed235ef891c111585fc2f129182b59d2a4294ca240c5de80d8ffc7af. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKPL2284532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8f9d9b9946dd2e0e57714ea9f0d3b4f6b64f657736a0d701cde4215fcd24a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:13:28Z), 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/GBKPL2287947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16886982fc19ac0d86b58b46d3344c9acba02d4f146cf807f28ae772f963483. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMDA72265805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b280d38c8fca8f11f72c734adf52dbcc4f827b54b352c690e551d972aaea0. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM4TW2303456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad26b277cc086132b0aebc0fe77e5007bf331bbfcf1a864fb0178833ec6deac5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMBZ92393144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3ef5c878c30e8077ceecaaa8aa5b1d330f499a29fd6bc26ae08df9448c483. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBKPL2155228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702b280d38c8fca8f11f72c734adf52dbcc4f827b54b352c690e551d972aaea0. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QM4TW2303456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5e9d7da6de320c705c2533fff33697b6b6cb016e2b7ec49489f9d2d30293af. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:17:37Z), 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/DEE862002637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b489d1d0e3ba7229b28e46dbb22ca7b7285db802fa575e6bd16d848cd215a35. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:05:39Z), 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/QM6P42485988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da398771803c664b521b589d41b57041b03e5b0bd4f1da96e06afddc55d3f16. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6P42485989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1228dbc42480b95757afc56f72201c282114af15d75d13692691d2dab69b53. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM6P42485990.
Gone Are The Days (feat. James Gillespie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015c349e324934b484997758218a06699d8f8db63a412d4fdb8500f53ec1ab69. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12100639.
Art Of Letting Go (feat. James Gillespie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2373375ebfa16826847540644edc3ec85b475d5854c8098b148a80894b19ce. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USUG12303392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2373375ebfa16826847540644edc3ec85b475d5854c8098b148a80894b19ce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12303392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015c349e324934b484997758218a06699d8f8db63a412d4fdb8500f53ec1ab69. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC12100639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dca7d48e8937aee052554609c56892e69704ddffeb3b364de5c0defe059f7b. 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/QM4TX2135579.