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 0x54fe0a2bf75b7461af062246bada18190661751b4483468829526e87a6f95d7d. 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/2a5878b6-6eea-4c84-a4f5-71fe7c1afbc0.json and https://artists.proofprofile.net/proofs/artist/2a5878b6-6eea-4c84-a4f5-71fe7c1afbc0.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 0x6fdd8dca9565ab95e8ff28d30fe40d8bd3f673904402f2536c1ee1524faeea68. 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/UYM121903914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e274e6cef1bbd0e2b6eaee87332100350bfeba31873f1fe8e296512f7d2daf. 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/UYM121806427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72df19eafd4a1345e9cc804d7dfcc5b64d70faef6bd06b0814881145902800e. 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/UYM121806428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a064e10e2daea84d367027b6269ea2424f52003051a35b65260aa9c1d2560ef. 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/UYM121806429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326cae7257eeef7d0d18546989940e8b966153a049d927f0f36f6c0357d88171. 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/UYM121806430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3216f17250f7b0a15169d95d66cdafcc63c1575a46368e6a081cf27d1050c54b. 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/UYM121806431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37798a24e16b2ebbfd70163738ddcf6d6412da94d673b6edaa085538a390c914. 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/UYM121806432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df77e59a394ead320b502005ccef6170ef947229bec3baf70d1f18a12accf6b. 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/UYM121806433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44266c97fac02b9b49201e5975b42a14ac10a4f8c8cce1e6e044f8dd9228bbc8. 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/UYM121806435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c9584ddfb7ce9bcd28b873e270a8f38b3f3569c465dbc9468888b796a1fdbb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UYM121806434.
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 0x7c1e8fa782061499f7bb3d8598ae907b759c526da15c5c1f7cdbb8bec7737e37. 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/ARG991042630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65f339f2a3c73ce78a0e8fdaaec18ff19a8689272da42d9f49ef36b2380184e. 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/UYM123000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64204d69e2d6fe666255fa01c828f5ce84d45fbbea699a995e9e0171a07e4c9. 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/UYM122201488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a34c4c6d207a2488664bcadda82d55ba21104d7302ef126a74126ed2c81e39d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UYM122104482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7959b942b2d0a95f5023545cb6a5aef953092aafa7a3eec6497b7e3d187185. 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/ARG991034426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6af0434331c934bed2213ecbe78d2b1a003514539ccf2f2b1b0089ac40fc82. 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/UYM122003371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a50e413967c88089353488343b3af300c099760431d8a133d381c040150174. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/UYM122003353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e294fbd4cabd69bfe9d881fd18008143dbce1a6ce0a975b1e3fa8a1baccd7a. 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/UYM122002209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbdf387649e4d338d866d949ad4476b500be2089feeafb65d1907dab6b7df90. 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/UYM121902977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd125fea2196b1a475d300174654455c1b235c503a7b56a541d97b30413f7f2d. 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/UYM121902910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a57a5963681938e7f6f40d1fe6019f739d1ec0ea2c2e520f06cb94b2c9ab8. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UYM121902827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71fe2caffb39bb77f1c6d1bb00cd666afacb17c004df9c4cf569a27871f565d. 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/UYM121902974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771992b3183b5588bf849290cdaade230f8da17b112fe3e7a855730fc8387895. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UYM121902985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f51624b5baad9cd52bdf90d4f8f1ed299f0d8ff8e1b2eb7d13a22e65127f1a6. 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/TCADZ1805584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b8ec6895fd9c7a6906fd0224152fdf2cc6c28f3a82ada0d1f2454b6fe819e2. 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/UYM121902978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d232c41acbd8bf52cae67c939ee176a2c5d05aee2c42148f4611e4c096642. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/UYM121902967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c481e3d1a21f6e7dbc0ee9225ae15215617aaa2bfecc34e7dd77a49e68d7455. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/UYM121902988.
Fuiste un Amor de Verano (Cumbia Version)
Fuiste un Amor de Verano - Cumbia Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a18fb53e46fa61d0d96da99c496f8f0c884ee45183699f5274aff86df7c87c. 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/UYM121902975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02065a0bb0f1d62cbb030369e8deceb2c6aee72e6cec55ca251392323254790b. 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/UYM121902976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64d2347b62ef33781e72671c8e598cf2cf94b1a3fcc114191e9e05bfc9ddcc1. 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/UYM121806447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb032cb16fa73291d8e02490f47e779ca91d65a3328289e4cb96655a8409cd3d1. 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/UYM121806440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba28f5e4b1a080fd790bee685140b77b1bb3e5d92393073efb396eb7a1b67ef. 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/UYM121806442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cda39fa2243524da5fe63748d36614db658a51f9812ce4caccb10ce560e83e. 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/ARG991018198.