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 0xc80c0a4108295d3c9114bb99cfcb6d8889112080d1faf3f791b54336dedb3985. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0ab7e4f-de7b-4090-9cc4-f5845a6c57b7.json and https://artists.proofprofile.net/proofs/artist/f0ab7e4f-de7b-4090-9cc4-f5845a6c57b7.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 0xc457916c1c40e96878e41e4a8f3c48afb2d543f7ac1065b27b3cf7e47688ee7e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/MXF148000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf075569a46713813fe2f21743ff205c360b27d9d4bb5c04ad5d7eff896dd4d06. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:46:27Z), 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/MXF147900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2979e0d32b5344547da19fa5d3b911c2bef0f638c154b7549bb08b795ec1a97f. 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/MXF148000177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce77402fa3be05933764460408589aa2cc818433ee800fc41d46b5c422242275. 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/MXF147800027.
Mi Aguililla Pecho Blanco - Tema Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9efd8069c52ee5e6c85599911f85bfa7810576ef059639254ec7ceb2ed56c27. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:02:00Z), 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/MXF147800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2362fccc6c59a85b6123452b55d9e9e73f6d969c19e6b42e8ccc041e7d7e7889. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXF147800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61180e77b7292a41205911ba7e6fc91552e11efa3850ebe6f058077d831c4348. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/MXF147800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dc7547ad22ecdda0fe3694250b12e01fd35e8cec039430e5238d8f88a1b1f8. 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/MXF147800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef154f7e4edff15d459962c03730ad15303a25883cec1f1569a585e4157164b. 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/MXF147800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f23461348f006045c0507f6492db5dd77a511747bfde2f97f1536e7e696e47. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF147800054.
Mi Caballito De Madera - Tema Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6419c54f62610d857f677e00224c457a7adc69c482b12384cec0a0fee72a39. 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/MXF147800067.
Yo Quiero Tener Papá - Tema Remasterizado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bfd8d615637dad5487a955b95b35c3534153c0ddb5f03cb4948f0810a09396. 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/MXF147800068.
Mexicanisimo-Bicentenario/ Pedrito Fernández
Pedro Fernández Y Las Canciones de Juan Gabriel "Querida"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03267d788ac44aa53ba68b29fcf9544de00c429f772f38b49d8665778073934. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:05:34Z), 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/MXF148500093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7d9df481f9b8c1b62ccbf9d25fb4182bd75f1506aadb1ea1b3d431a8f97eb8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:25:07Z), 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/MXF018300573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec256b68a62bff5498250d3914ac2532a861edd98f528465f6339f80ba329ea4. 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/MXF148200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585faed085a8987fea06f46ea54c2db197235356919700c94a7ac65b14d1007e. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/MXF017900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf075569a46713813fe2f21743ff205c360b27d9d4bb5c04ad5d7eff896dd4d06. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXF147900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0832e9ad43de2f3961a669f69478313bcb2354963f7a8713f080bc2d2fe5a82b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/MXF018000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26fe9ab3b5731beda4add9fcfc9eb2eca48aedadd7d2e35994dc116b9598669. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MXF147800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ba5bbf2e00eb56cc5b78b1e76e11f79ca2e4ca8bfc1413e1d1cddf703e1619. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/MXF018200630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7bacf6ae50bfad792553b103d55392423e088ecd4032506699b2d35c8421e6. 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/MXF018000400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce77402fa3be05933764460408589aa2cc818433ee800fc41d46b5c422242275. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF147800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e919d44078cfe91e6a2a612ed3f63d5f2a20a54071071b7ea15039aeac0b11c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/MXF148000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34126388550da3d3eb0f4496b60a8123f947351df6fd6f2e558d403442a0a34. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF148000129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb071686ad936d54f4a338dc86ef75815bf38043bcdad5bf6e4a10709104ff6c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-20T00:23:36Z), 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/MXF148000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546550c8d95edd0c39f154b045d82431a3a8ffe9c44056b353f6f699cac6fdf3. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:04:08Z), 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/MXF018000389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c83e17a614a57f09a7b8ad79a50669dbf17bc010fee881e15fda47ba776c7. 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/MXF018000462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0cfb2e4e633e53738f25712a9f8404d9b90d8b3a2b2269982f698299dc5585. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/MXF018000463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31adf7faa2d8ead5bd616a8fe41b8afbb068e10ce3f392b760ddcf6e9646d99e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/MXF018000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f4f21eb8641685fa6fab78220cacee04a5847cc25026f46e7f01c6004991d4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MXF018100414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67926f49038911003ab7b48b6c7605f0294ae22e3bb61f91ec4f0bf888ad08cd. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/MXF018000513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fee86a66a314d0ca0716419ba05f3d744984f713e2b64a601de5f58e6457a3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/MXF017800388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa54a9a1e3290e295c4ff4f66d412f21675e66f58f31b9bbdccca892aa0cbb6. 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/MXF018100417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda6d973d2d3ed97eb570d2329fbbb71c66abdcc81a003e062d2c679eb7911ee. 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/MXF017900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac26bba68c9035a525795b80f74dc86ed0d95dcdc5260baab1a17eb61e0c132. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/MXF018100418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc869740cbd8d116568651a5c61dbc3c3d64f8dbf3b582e3bdcb9ac3c8ec77a16. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/MXF018100419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51a57fd5e073b90d7d150a5f5290079166c8de8bb29c4f278baebcc5d04ff64. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:01:02Z), 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/MXF018100420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdbf0f5ed7cc3455b56b4a5c84888b209da06fbc40ad588250e0914e8f5e01c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF018100421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ebaf7df1c16887d9372ec9def3faad00e52fede60bb1ea861bb057e35c895d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:51Z), 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/MXF017900418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb839e2da8771931387681e8dacdc769817c313135ad9625cb0c3d12f2a4ffe6a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF018400965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf0ae9d46c557f9553aa01a66cf33e7ee759328d13dd84758df76b9dbb2c2d1. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/MXF147800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf377a65b931a1fec5441ddfa2f17ceffeec2827818e0dbb65ba78574db7fc1df. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:42:42Z), 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/MXF018000665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585faed085a8987fea06f46ea54c2db197235356919700c94a7ac65b14d1007e. 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/MXF017900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6448f2463c786e495edb7789f39b1e9718f92df0309951d45621a8d662a21db3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/MXF017900423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0766e127ed121c374500b994465aae6cbd769eee1b78a42732a538a3dffd4b1b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF147800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26fe9ab3b5731beda4add9fcfc9eb2eca48aedadd7d2e35994dc116b9598669. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:42:33Z), 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/MXF147800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293094c25f5fec9703a59d27740de929308c2b72b43909f7d839803dcfbcf40. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:29:35Z), 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/MXF147900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96ab0c4cad55c398f5c2e452f76f56f5fcfa2b2458cf43eb08359397466e603. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF147800219.
México Se Pinta de Luz (Only for Streaming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57905aa573b0f0070506f5c4f5555cfa19b48819f44c7e9f160ed9d98371ce43. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/MXF149000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf31c82a1e3238d7bdc2c2cc8cf8495550b583af7d5068eaf21436c525e7524. 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/MXF149100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772658ad0bb99252fefce9d41fbe9297b855869c0ec4821f1d9b28d5caf54486. 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/MXF148000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf31c82a1e3238d7bdc2c2cc8cf8495550b583af7d5068eaf21436c525e7524. 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/MXF149100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf31c82a1e3238d7bdc2c2cc8cf8495550b583af7d5068eaf21436c525e7524. 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/MXF149100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57905aa573b0f0070506f5c4f5555cfa19b48819f44c7e9f160ed9d98371ce43. 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/MXF149000076.
Tesoros de Colección - Los Maravillosos Duetos Que Siempre Recordaremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4160f2b76afb47870de6246b6d01336babf609b0ef0b234b8eea632f20e73. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/MXF148900146.
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