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 0x8581e12729d72a9c0c2fa742600a40a34e9fe32cc68d455dc0a07ae342003afa. 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/8b8d3703-65dd-4a7d-b00b-0df66856c9dc.json and https://artists.proofprofile.net/proofs/artist/8b8d3703-65dd-4a7d-b00b-0df66856c9dc.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 0x94aaee4cc4f313ad6a35dc706122a28b699103ddd0d6025755dc7d28dab4f404. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZ5AB1858302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6855c3b252425c0ba37aed3ed71f06a5602dc4b31eb3894af4f7900288db3d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ5AB1858405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e02e913ad8e0359223e02b9e8cad48831821d869c46057a41c9898b6ec7c75. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ5AB1858409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71abfccb0c560b47ed4096481363f539aff7c87c41b5023070371f2fb264ac2b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ5AB1859059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa145a553887b77e02f91b87629e893a52e23019c9ec61942c18b977a29cad0fb. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZFYZ2190868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ebff4cd8e8f7398229e7ccdfef2030864c8318fe9e42e24cacb75ef1d233b5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ22113227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7260606996ac2057e3b351ac4beb26328d03fd3422a5c2a69542b980bb4fc5ab. 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/QZFZ22141052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2c0b03e03604ea600be564b748695680d7263bed52b0e3dbd85f7f681e35e6. 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/QZFZ22141059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196df3a5545e69cfce3a4b3cdd258237108dc4505ac5edfca3c4efef036a9b8c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:47:04Z), 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/QZFZ22141060.
En ViVo Vol.4 Todos Los Ritmos (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef2839a394ff6dec9863e16a8127398425698afe11c485fb2cc518744e16e4b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFZ22138753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa631c0cdc5c21a3be484cd864f6ec5cfd51c4834e3891c634f5132ede9e37cf9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFZ22138757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a68096ab28732a6e7c4dbdebce249f11c11ab00bb9482f29fabe448528269eb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFZ22138763.
En Vivo Desde Juchitán Oaxaca Parte 2 (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b09d86cf3d5c9f772175a1cbcff0c67a84cd227e1e20d500271881b286aa97. 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/QZFZ42195334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0824800649ed205c833df3db381a6b1c4d568c82c071e06ba64015527e634e4b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZFZ42195335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d895e40b25a6951ffa1720dca6e9dfa7d2b9bbc19e4b0ad900bb56631f1d3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:59:13Z), 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/QZFZ42195338.
El Viejo del Sombreron, La Cortina, Abusadora - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e6ee4fb629846c1ab0f13e29cd8bda16e9198cf121c880cef23e1fd45f2317. 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/QZES62159608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8094440e3177a57ec303b79ba1eae9cf7913e48b7e828150c1572a4e9f26bfde. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:59:57Z), 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/QZES62159609.
Bupu Kumbia Kings, Rubrica Pausa 2 - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6728b327ae01c063208d5cce72bd55f3dbf1994543020784552e5bb077c0786. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZES62159613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad55858ee6286ed27f1de2bc0a9284fa3227ddaab818074f3340af954462ad29. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:43:07Z), 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/QZES62159614.
Menea Menea / Ya Cayo / A los Cuatro Vientos (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f69a74d9dc9358361eef8bbc0506090d02bac6c16153baa572a3145df8ba37. 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/QZDA52316294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06953483905c8559b6c5b4694efded1a5f9bb64c4381874986d6f523cb5b279c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:04Z), 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/QZDA82348498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb839f718042b137eaad14d447c49af4d4b30821db5df0892e520c6faeb93d9a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZRP42388270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb6157a0ad99a6a48a1acbf637692352a9a578e8d5904daab15261bfa09e128. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:56:07Z), 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/QZRP52360613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd736601930d628e5d66c4ec1d3748e6ca1bb4148eacd0e26f418dc7e31855e. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZTAS2351413.
Cruz de Navajas / Simplemente Amigos (Special Version)
Cruz de Navajas / Simplemente Amigos - Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b990e2e03638c4424f2f537aa9de2568cf116a37a20020bc839f23f68b2f05d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTB92335724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9e318105dc46d96f9ee996f5ecf8fc575fa9d569dc03c9fdfe6c07574896ec. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6G2583826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53cb7297ce2e16cb67358311ae1aaa7eac02939e83af038aa5ccc0e81835479. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:53:05Z), 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/QZK6G2583827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78d0d56d01947afddac2fb2c9bb84288a078a1b933414472ac7b538da466453. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:17:39Z), 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/QZK6G2583828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847d442136720d8b0843dcf01e017612580d2cc10059f83de127375bfc1c85b5. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZK6G2583829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3e7679f1672b95292aa93f350047a2455e104d31715d7028ade7f15de9894. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:33:16Z), 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/QZK6G2583830.
Acelerao / Cuando quieras dejame - En vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf007487e9d03495b062c9702c7c4ab19cb9899b08ab5a2120a767db64e1e837. 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/QZK6G2583831.
Déjame / El Viejo del Sombrerón / La Inconforme
La Mujer Que Tanto Ame / Dos Cosas / Amor de Primavera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa140482b495eba3475bf2418ab8eec7338fe6ab0ea8374b0a390132bafb0f540. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNJX2534405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3f8f20513d52ebf88e813a7703c07cfe9f762ddf969962ac0888b637d1177f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFU2578766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bb7cabf9f1acd90ce71b5e5b31f1d481ccaec034a9f37fc601668e9ac4dd4f. 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/QZWFU2578767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7b8a32a12a29a361d33fafc9cfe539b2af3b4dd34a8e6d051ddc2917c4eabf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFU2578769.