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 0x144eb1d5e59bedf484f668c32f095e9f92567f4a5403df829ee53503e762f2a4. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89d60b1f-c790-4397-af72-9fd6944b2bba.json and https://artists.proofprofile.net/proofs/artist/89d60b1f-c790-4397-af72-9fd6944b2bba.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 0x9c1c88ab3b380651758bde3449b48efae728e4058be9c463644eb7c658a37c3c. 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/INS180260918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8071ba2ef44db136909f056686298cceaf97bde765748da4d8b4b39338cf9871. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/INS180260908.
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 0xd823f2c0ea83a7c65f26508e8dae86bc5ce58b079a479579b93bcb53a35b55a7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/INS180260911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1576fc89feb73e247a7cb3bb051b8bf13a69addc6ba15ec5cca036446aa5ef. 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/INS180246984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef61d9d8104a2e545b9b1dc803f0315b91bed903deb806605eb50d4758533ca5. 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/INS180246985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4804d4b6f85f1036b03c54f21d12ad2a6f7dd65499225df389a7fed2b3e9447. 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/INS180246987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58de00f2e0fc3427da288dd247447c110e4d4406488ee62a0fb913f03e1e76cc. 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/INS180246991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7c5d9c000ef99cd1e072c696e6d3ee81d2c40eb32f09c7493f9c2578174cb9. 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/INS180246993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dab76de4dd0ffaf5e9bfddca28c8850b154f6be7fb6adf60007d2460566a85d. 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/INS180246994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5803e9b1b79c20c44e5a43e536893941798d03e3c3442efa137c825d49b67f. 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/INS180246996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed4a59035e970b203dac7a7be104bdfc65b8cf1a06f46fe84bf4788b35bb37f. 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/INS180246997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3c2b37bc6041ce6a0001e90e48a5c0363c905caf58625256fd1233f6e32cf8. 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/INS170000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d03eab8082498222e82ec082a1d7e2374da07cf8af8f44cfa552017d1d2b8c7. 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/INS170000328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb9965e5f2d5621baa0fcab9f73a005cf1f997be4a766fe0e80d3d9e7ded048. 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/INS170000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4a38d16c3d796d7c2f77ff9e4bc638f9b0c45da7bdab28ce98d0d1cba5c135. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS170000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c28594d71c485735db296513748745e2565206d98c43dc8a0db90c970478dd. 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/INS170000233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa001a7e6a415529904bd124718f8e207232097788757e76fe3705d4904934d. 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/INS170200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8414cb3409ebee821fc6246dafe888db53a8d6aad36b4a51657fa034d40bd9. 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/INS170200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35e1ce2b62ae56029792d4c46e2c8f5f1aea9a87b1dcbfc69bd2f022dbe601f. 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/INS170200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d585f180ae0261984735a55078dd3c048d5247428c3a200a480ec79f215c0db. 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/INS170000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4039bd741df9e4036027951db97a5cedaa714d5756ff9b9edd4133841055a3. 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/INS170000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7a6ab3a1ae317e74f8ab3067668aa2fc5afa1cd17bde9ad882639a6669ef82. 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/INS170000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300a7b6bf916a3318c2118177b1bfae4c14cc88e85a2cf34a622d796df317330. 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/INS170001171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a21d086f7c98bb60269bb7c4e878d286bd343abf76f84dea5978fa43226573b. 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/FR6V82322275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73933b7cad84513af70628c34e4a68e886b687016c4eacd680e98b8ce548bf2. 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/FR6V82322277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aa0e2305190520e5d1d0c56cde20ee88ff1ef2bbadbeb0dd54762cf4fcf9b0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR6V82322281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b9971c9b8891c3f6b8d6fbea09247d12893e98ad7f5cf8f67bad63307c0e92. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR6V82322269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2037e39768f19d5b39da7452cb855fd8948df0069dbf7bd8313f243220709d23. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/FR6V82322282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924956e1d08ad31e94b6148a29a389b88192d48583515f7941626d2d775b6061. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR6V82322283.
Punyai Hirvya Chudyachi (Original Motion Picture Soundtrack)