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 0x89530cc2a17ae4873d313f9adaf865726742f12ee65f6e34d7d0a0e3b0fb8d35. 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/213c01fc-3de9-4ea3-826d-5ce35c22beb2.json and https://artists.proofprofile.net/proofs/artist/213c01fc-3de9-4ea3-826d-5ce35c22beb2.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 0xa29748f83a5b8b0cc1231f0f66de04cf647679215ce94135920a9e1cdba325d7. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZNJV2008865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8b9091d9ddbf9cbe1c0181b82e1ed3c7fcd1ef336ef4421165b25fe3715d85. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNJV2008869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913fa51e28630e31a59bcf82b55972420a48db2c6fa803c1a7636c6dc1a1f068. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJV2008871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a38ad4d464fc9055fd5d884d3b49e2acf4a30a6a5788c3b55f25f05809a9d2f. 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/QZNJV2008872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c04b0841c3784352ea98d300f8d71c00537a4efa2735083b4c6181455ac9f64. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZNJV2008873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147c4a42df39fcfb98fde27e59c0ac64bd72e1736c754cba77c288e47b37fe83. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHZ32186627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fc7e005082c914cd593ac9435bd5032dcaa4b3730a642d42b484b8f85cd201. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:28:14Z), 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/QZHZ32186634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54bdb9d6a8d16052744f2b4f427aa83cd1ea91546aae31735676d1b53524218. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:00:51Z), 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/QZHZ32186636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820557f21a93b984a479d45c98ca76971f84e6d799d910dc75ac786dee78a337. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZHZ32186637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fbe990006f2f749b17df398f102dd896e90c0546dca1590e20971dc315799b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9L2284491.
Voz y Apellido Que Distingue al Folklore
Hoja Desprendida / Dos Mujeres un Camino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ad837e7e728601d088af64ecb2797a9dbba68631b03ce68db49f914ad40509. 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/QZGLM2353180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116fdb1906c7181ba1290b3b3caa7d302b150bc7046ec9a080bee21931d88e1b. 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/QZGLM2353181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694de03740705b90f5a825133659feaaf0355ee70372e08ceef7331741e1f1a. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZGLM2353063.
Eres Bonita Pero Vanidosa / Te Has Marchado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bfba737e7fb4f191b80c5642bfc004775761a7f659fa03d691814aabf90066. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZGLM2353069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993ca4c022786eddd9a5fd172760af9a2cf476bb98206d77433e6d495e6a5fa8. 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/QZGLM2354559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaa3373cad170c18c4a5bd4063a206b4f51cd216178de7842100f5710943684. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZNJV2377840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c2debbfe268adfdc804d0b05fdfd27cad71f6fe716035543c5789ff7b70640. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZNJV2377841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c54f30790a54b64eeedff001c8dacf3db85d5a978e827611e2406394a4fc14. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJV2377843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9d76880ae34014d43d34c5336fe12872adbfdd177cbc78f490c0be91a0f6d1. 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/QZNJV2377844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab25b31baabb0a121630450d0082b56133ea67c2ea2c1dba1d424fa6d18bef. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZNJV2377845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913a43c3ecd0306c82539b53a0279be51af8c35e090ca72aaa8c1469ef426de9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNJW2409876.
La Hoja Desprendida - Dos Mujeres, un Camino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac75aaecb2e7aaa84113dd868b7ecf51bc2cc6825a718318029f337c8d273fb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZNJW2409878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa685447b51fb371ae8700bc81fb1c880c74b738a2795e0240dcb357661e9b5f2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJW2409879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa093017f93471f581c853cb38a5d1fe3514739d95efb62b61f7bf2060c58397b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZW9M2475224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc286b22eee6b9aab989535f3dba3e8ffa904bb43b873ab3ed73a068b2e8cb224. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNJV2504638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d64d0542b30e750f2dd30f46bb36af88a976562af291636173edf2f79f5876. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJV2504641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e5aad29e3446735979affa74a30e9ba282654d371f0665a42f6e5e7116575. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZNJV2504642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb727ea3169bd9eb986235ea5129bd17ca63d16e8cd2bc0e0dc8729160d315378. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJV2504646.
Dos Mujeres un Solo Destino - Tres Amores - Luna - Maldicion - Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe772a83d1f54e9fe000198e7498a8b2b009dffd607fb65b6d9cf9830c4239d0d. 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/QZNJX2575594.
Clavel Rojo - La Ingrata - Te Has Marchado - Cervecita - Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d780b6f6fde21403309552b01967d0472b1be95ddb6209a8d8d87e43aa5ab77. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNJX2575596.
Ingrata Tu - Solo en la Vida - Mi Resignacion - Te Robaste Mi Corazon - Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416f9bd11b096eda4612d93d61b71fe4cfffeb18ece9be8e61a82f72179b36bf. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:39:09Z), 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/QZNJX2575601.