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 0x0704c8677995488937d0986842337cca997967b32577a80ac1f718327b980707. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9c39769-960d-468a-a6a2-6cd7c1adced4.json and https://artists.proofprofile.net/proofs/artist/d9c39769-960d-468a-a6a2-6cd7c1adced4.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 0xa9b5429d8ab060d160704d72e05b6bc8972bca2944c6964b67e087b365791e48. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKQU2532641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd36c8edb1d3f38cc589cecd5ff74f61023dcc0f5a4f87314643bf109917054. 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/QMDA62446471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa573b07d89fbe3a4236ab118a569a3bcec21749e5fd81c885ceb6cc10626e486. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMDA62446468.
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 0x6c026a0f6e76dcb46e30ee87cb9220fc95ca198b3f33fcaae830366d6770ffd4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMDA62446470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf218c8a8e04aa3d1864aafe2594e84153ac7ff54280c5a031132b757c27275d. 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/GBKQU2484107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b899ea451625bd94f3502b26f1c1ceb5ffc0c31d1f2af4e5b5bd4a48cc003cd. 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/GBKQU2484109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8990401b73912f3318a3efd7bc18dffa5bfbb82ad10586fb17a6cfdbac29fd. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBKQU2484108.
Lose Your Mind - Riley (UK) Remix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa225a377b96c9e80ad698440e57441c3c3ac5a6a53dc84b654f72b03900ba091. 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/GBKQU2457752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc73e5018c6f713f4f69ebeffa644bee7fcf0f57441b48718c10aa817ec7202. 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/GBKQU2438606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ff79b18571cfd30a038553341af5c19f2de63bfc573a11dda813a799888a16. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBKQU2438607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607725f1ce3ebec624129ac35b17b1518fd70c1995c0e191485d55e6a1a048c8. 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/GB7NR2369401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e6ca07f91ca157aca6c8b9529f49539d722578062e87c7e746191f1e439180. 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/GB7NR2369403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df576240070ef61123832c9b7013c78ab94211c71cb8c6d9bc87c03f470b34b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GB7NR2369402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf9c198355aa008bfeaa6bcb33e274042538f604b2e89e252d2dd068907eebf. 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/ES94G2324004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd86727f59a7b36d34f9bb8369b0326b9e0c445e6413e846954ceb499dfc81. 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/ES94G2324005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780872a181526c5e8c7fddca7ac16d230f0794cdf14b95cfa41c05c96af6fd67. 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/GBKQU2244308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638781fe11f33059eee8c77f769dc1ef26142c5710e0256e6b79fe0e235b73ba. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2244307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e2a920a4ff079c2fad158d8dfd31b693262575830cbd2455684f98972e8718. 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/GBKQU2232579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37225b6b926516f2295f4ae53989c27ca94b535b43e9adcbc009b5a6dac898e. 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/GBKQU2227780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91be96488ab8ec92193009c1e16d51b01b6fdeda3c8427aa470d2110b0073522. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU2227781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5d6daa42856a47c07f0a59a132a7b09054cad0bce1a83ef5b6d6f4ae26bbe2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2111214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4464980b846e5ee48c2dcae4adb6af87ae21835f1ac5a8bcdafcf9923d737262. 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/ITA061302297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace11bd5ac23a3bd69eeaf6022c9c44cd5051a5dae92c0e254600572a5e9960b. 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/ES7841513406.