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 0x4575a54f008616a350b392481e1651725cb373c5dcc404fa5bbea0354254c36c. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ccfd14b-e75f-42e8-a611-4bcb3ebf5d26.json and https://artists.proofprofile.net/proofs/artist/4ccfd14b-e75f-42e8-a611-4bcb3ebf5d26.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 0x5b3395665d2ba3cc6ef20413f580b1679c3ecc9c4c1507afe5e97e08a7ccadcc. 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/QM6N21814062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf873be85edc335be10f1be92f48928cb03846621c837c5f7ff81b1e35273231d. 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/QM6N21814063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1043e7f50cb37ee34777ea0b83e9a38bfc07df329f3744dfcb646f8a902ebd4. 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/QM6N21814065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298018f741e1c0912e4c6d47b2b44364411f6900e800aa3ccbe06a5e3379c362. 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/QM6N21814070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b76bad0a9d259fa90fe70c3f437b59d6c45c6a1c68d47a0ef82503e464560d. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QM6N21814075.
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 0xd53ddd18e4e3d96ca0b87f9ecaec128dab63146ffb20ea81d61561ce483ffce2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:53:41Z), 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/USZZR0911949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e91411c33d2c2d68835b430849f8490bbc3ac9fe700695a90979b15aadbf845. 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/USZZR0911950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3af37494e76dea57ec76680657359cd71b91e0c1b339e5726f5c80756e6935. 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/USZZR0911952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba0345be4eaf0286f9732b7fd63e6a7647ce4b88c7278e9b3e5033a2b52d62. 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/USZZR0911953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e232d90e5f7c768a5d986523b28b20fa4683b4595652ff4dffa407bb84edba. 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/USZZR0911954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c66deaa5e2d6d99628ff90f6763cb187c391a70c99b60f3b67a0d3b68bb6fb2. 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/USZZR0911955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f9ef1f0386f5c0919d389687d596e40b9f3354757a4ecb7088f9ccbdd5b970. 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/USZZR0911956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b024a0cb8cec76752d8ac36c8ccd1dff197e45cd1d1da42dab8dd9bbdfc026. 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/USZZR0911958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dcc63d6b535102a78b1d469a1c760524bc09a8ce2c6b5aea8ca7332a34ee3d. 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/USZZR0911960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da705ee26a62c6dcc2c667fcd84472962bdf9efdff9880961f3ff3d4f1765f7. 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/USZZR0911963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1514f4267878d67bb807611090f75c5e4a3c2d62c2bdb0dc24eafd69396cc841. 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/USZZR0911964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae13732c4714176419b52ee36bdfc22a88f70fcc34a57e3bc8336d0f3326341. 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/USZZR0911951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a60105b48464667b6ecf9b1af14728406b9b5d8c3c84176a4eb10cd96b00d7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USZZR0911957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9fae6e7dd43925c950a44bf03f3b8cfd1a72a4c5df713db8fe0d1b40323b08. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USZZR0911959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3302131f12c600c07bc2dd3ef5a65be704d4e884a735b337dcc87e9b8be8004c. 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/USZZR0911962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7960f9f7ef89745f32b7ff34bd47a73b5dffcd609867067535598c712e9061ab. 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/QMDA61595514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e5ce6d1371e423b1e91a899e093e6804457621623fef7f5248d4d9449bc0c1. 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/QMDA61595518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e21d4abaef08ae5b007d7be77bf1a5b204abf3783901438353cba1c3ad3608. 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/QMDA61595519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e6c7e4e26cf9aad564bf423c36eb82bb1daad5ab18352bb7dce7c0e89ea4c8. 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/QMDA61595526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f7aac8cddac83cfd303e1ed7ad6b7093897792151832b3261483e94dc274f0. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QMDA71503744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4e75c63fbbe7ee714b2f65e52f16ee6348d47a46075a86f86a0d2cc5124e10. 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/QMDA71503745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992fc079d56c353afa65a64a1ba727b10bfb3fb3fd3b88961ac4757876a98e5c. 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/QMDA71503747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd441983cec7bd65b299fd4888c8519b4ed943d4bd687d844dfe3aab7657a2e56. 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/QMDA71503754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368c11ec6ea5b3663ae7854ef985eb22c944fc9b9575618800e762d88bbe880d. 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/QMDA71503758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4171ae6378266328d5a6c8ea9072e0324243529db26349d67bf6af43904042a2. 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/QMDA71503761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fa647d2d973ac3501f852b693c5cb08fa9ec0a9eb5cd0b77979ade52b2e041. 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/QMDA71503763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e8c0313b4543426b3aa62a6f801f979b6dcad3d39328bdfcec507a9d2ec281. 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/QMDA71503764.
Cajón de Arauca Apureño / Sentimiento Apureño / Mercedes / Mí Amigo el Camino / Chaparralito Llanero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90fb6bf587dd904a00c5f10af04c947016fb103a232b53841710da2cc1683de. 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/QM6N21801192.
Galerón Margariteño / Polo Margariteño / Malagueña Margariteña / Que Sí la Pones la Paga / Canchuchu Florido / Cerecita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301fcee3fb974a82bc4d7c2e74a01fbcdf62a55022b7a0b9a00c29504b57a282. 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/QM6N21801193.
Desilusión / Que Dolor / El Gabán Tuyero / El Aguardiente / Déjala Que Llore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8b74cc597db9a445f537f0e28aae492558cef124a3adc20c957148de48c679. 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/QM6N21801194.
Brisas del Torbe / Nostalgía Andina / Preciosa Merideña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc0a0aaa119ec02ab34b603580d0a6f72f6aeae9173d2adb96e6fff2ce5502. 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/QM6N21801195.
Toro Cimarrón / Seis por Derecho / El Gabán / Aquí Está el Cardenalito / Gavilán Pico Rosado / Mí Más Hermoso Motivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b41b2b2c9edfce83ac130f2cf6482d794c115f640e6f0c5ec84cc426c3b8eb1. 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/QM6N21801196.
Chinita de Maracaibo / Tú Boca / Maracaibera / Los Pregones / Soberana / Maracaibo en la Noche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40f0c0a3a2daa1e568983da8f88b7589ad6d86c13f7aecb32a9d6cad205d943. 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/QM6N21801197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac25fe2f3bee30196623e5de9b3690f5a62d585a8d5e6507a9c62d56327fd6c. 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/USZZR0913203.