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 0xee371fb153da7b9b243c99fefadc18207ecb379039f63f1b96af54d041b0df73. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb2c2c10-b6b4-4009-8705-efb40a19c960.json and https://artists.proofprofile.net/proofs/artist/eb2c2c10-b6b4-4009-8705-efb40a19c960.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 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 0xcaa03012ffc8f2de211dea93e8d21fe46af0468108f6fbdf5b764aafb3d2d3fe. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:14Z), 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/GBSMU2256917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff51b19d96011c607d569c2c502e51209c4be0bf75f2eb36e0a8c42ea72a694. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBSMU3016888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccff28ebec60548d5bd60348afe26195e6308d50dab8fa1fa4ef4fe2cbc8269d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBSMU3606271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad411c293d55cb493fdb5977f9d85a552441e2286656ccba7a04fcb6020c5f1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBSMU3606272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf4074c10898e1432388dcdb0d0a005bab583cc8637d05672646976db0b8247. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:57Z), 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/GBSMU4101920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a23ce561b470008e70afab4e7a4a44a73f1fb84213c3eab1e4d73dc9357e83. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM91714607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eba67b6abfafd5545d7bb36c3f485eac6009f017f103bf4bd09b0390cd7e1d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:06:03Z), 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/GBSMU4492606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d4f7ee49cf8f2c7906eab8b0580bf4e5cf6539ab105291bf13c8c06929ff35. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/GBSMU4575009.
Ascending Shadows (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00e7dc1249a869fa37a51b7f05c4b8a68395f8b0e00e7b12f250b796091a9a2. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBSMU5587588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a417786388eb7707f6f2ccb2109c3aab5df1b29d241b0d0b3c58464323d115. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/GBSMU5929155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf922f3bf755c8a438662104bce8c011ec37d4036f9b6fa97aa5808937ec38db. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GBSMU7164281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54149622a60d40f931e0f3cc905cff290aea6514e6fd0189c433055cfe6596f0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX8KD2449388.
The Pancrator Principle (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad5f56dda3ba625847a805d7f4d6fb015b76cced534c42379d8f2225a86a06d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZTAU2345374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6e70790d3e21dc6b4fb10a21510741c5933a12d57fbf1d7a13317702ffe876. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTB42366946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e126ef23cce4ea86f5396fbfa51117cf45adc832662c9c1dd1ed530394ab62c. 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/QZTB42366947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad60b5d489497a0ffcc828817b4dee360651f6981b6e1b289a34e4e70289062. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:55:15Z), 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/QZTB42366952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cf545c66896092a3edf8336132045f2c0d5468b38cc75f585b806a78f04fdd. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZTB42366954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9ccb17949754493b714c0ea72211dcab4e16a5981ebd80124731a596a6b73f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB42366955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91152752003eb02fe8d9d81ee9a3bb0067e4e1b2523c247cff0e6ade20cafd9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:52Z), 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/QZES82495378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da59bd3dd8ca086fc1400aaf0cf5f4b1d22b7cdcac93277fb2f80b2bc15dd87. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:00:07Z), 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/QZTB42559071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b23670b5054d769eb7b7400abbe6f5c3368b81a2c2d58686c2ce62a33716c23. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:07:00Z), 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/QZTB42560885.
The Pancrator Principle: Shape Shifter (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaba4c09e01606654daa5286b3933fb13e29eeef40d45c11477ae5703f44d056. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZPJ32299884.