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 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 0xb4499aaa830b7e9375203365aec368496c981fefd9d71abd00e12a5a7f3499b0. 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/f5e64207-f9aa-4b2e-b254-f1e5de080bad.json and https://artists.proofprofile.net/proofs/artist/f5e64207-f9aa-4b2e-b254-f1e5de080bad.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 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 0x9f8c33d91cc4e25c47c4aabaa54d739b51a2cc672819750a2ce6aa219e2e96d6. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ES5022400664.
¿Quién Compra una Canción? (2021 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ce14fbd67a6c01a2dd365f9c4b42fadf2dcc2f0fdaa2b7f975b442ef0dbcd1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ES5022100262.
Canciones Sudamericanas (Remasterizado 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707597394c48d4d7ef8e0b8e72a5d5ec234551f39cbf84c94c737f4fe87a21fe. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ES5022100239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0eaa9fd089adc085241220343e2ffef65275b9338eca84b604887954ce92de. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ES5022100242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006a100540c88ec323d1bca0ef08d0b7c47cfd870dc375d3b9ea1ab9e2be5963. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5022100230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c5a7cfbdcc4367f7350e7037a17685aecc83c5da9cbe9be3383a10ac7ab5b. 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/ES5021900567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31731c86fa7a35cbe34a2cbba8614a8f7d49e0d55d9597f744a7725c1a090417. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5021900564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039955aa99826ddb73459e432c1def8df4257ecdfdfbef49d9d14e919220c4c7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/ES5021900568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2db389a0e5ade1c26239f0daeba2d3747c44f427e90a7a32223b6d8cf243c9. 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/ES5021900566.
Cuidado Con La Noche (Remasterizado 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83bcf01856a720ab53fe0aad42f4623e3dd285092a866c6dd160b9c23df3ed2. 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/ES5022102371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7ad2b0ba3a75e3d9690038eacdcc06ccaf3a01ac6f6b9c9cdce0e4bd45206a. 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/ES5022100272.
Déjame Vivir Con Alegría (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2197cff954baa3e9d1afdb739d9c7d64d111b0b0de4ae3a9a88604987d2f7db. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ES5110003105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2bc9e4ae198563dad736791f200402da148a7d7e7655f06ccf0bd17344ecb8. 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/ES5110003106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb993251b8f618898786cae1194ea2f787a5fc34fc11550c6abdeb44ca67a8bb8. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5110003107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705d01e350484b2f81314c51b8f6926201e14be01b4426a19066c2765f67633d. 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/ES5110003109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d0acd00a246a9c3e0d44de1284d0512b3cdbedb7d09a25997e54a4f7dedcf7. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ES5110003110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224f9eb49984cfcb3bbbe4809db0c5b341b28bd14f54b021244daadc7dc1521b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ES5110002625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182635214771a6a6a5f8ef67abb399bc792fbf612f9421e3a3bab5460e50655c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5100100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b9fc1bee81570e036d6dd00d24ae50b220786d0dc9f3530c877f5d5a7341c1. 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/ES5100100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf9817b7524f8fd18e0074163aa50df6e2ef0dde95dd16ac8f8b53987b7aabb. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/ES5020100272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3658a42c5f011b0a890f04359840639e524c307dc4ed7a193f6a7f0ad9d05b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5100100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f892be0e9d030e29c65bb59144239db26f417facfed99162f22839a9c06c4d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5100100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f256b554a398c5eb2543301b59d15ba8e472f208ac6a1d225270f70c7e82c83. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/ES5100100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fd686e905334cb089c24a5e2f73485d6161254d99f079af94bdc8b338db253. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/ES5020100273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450711d681d86886acc3800ccc3391f0839f2ad7c4902c0a4f76d8e6f86fea6d. 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/ES5100100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac0927c12f620176e7c942c4b5da49bc95385989fc8684d5b0648df637885eb. 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/ES5022202678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b967e50243841e139ecd42648a48c6005496c7f42c74721ed74c789de75ca2a. 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/USZZR1011526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51489b5bf76855cb781a196c2a7aa4779662fb2801a76bc16520946f44c337e0. 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/USZZR1011528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5e5d164ab54cc224de0734ac3a4bdd7202da5e4706350be76d71fd7ea5b01b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USZZR1011530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1273f47235528fc6126a79d542bd685776fba6ab2f0d0a8147bd3853b4b47837. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USZZR1011532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8aae568c4311caa62a35c0147a675fd1e7f4e51844182aa23d8616d141afb5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USZZR1011534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6952cb40d7b190838472a4b86de36437aafa45b2e8c41fa68b4c75e13134823. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USZZR1011536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef029a82556343a65f3ccbc1b4e145aebc9ae0235b1cab3e7a24697a4fc1e81. 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/USZZR1011538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4478469dfb5b8f5867dafd5f8639790cb0818ca85981d3d4266d3befd760ee. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USZZR1011540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e66ae36b097952324d295305b460abc4888e0fec1dbd8e2d88e641d02d5de6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USZZR1011542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ab659f21150ee23ba5639a6625280618533446ba3c468cd88ef2cd131af2e5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USZZR1011544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5efc4140a5957acd044bdd5d3ab62ac676c9e255a3ac4f7dda2dd92f5816c16. 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/ES5118400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f26beb65b61baf65a4f28d73f9b8b19bbe67fcc8a96ae24bd0b93d5d3693e6. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/ES5119901773.
Tesoros de Colección - Los Maravillosos Duetos Que Siempre Recordaremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3c226ddf5dbf90d76607ab11d2b1a5220a0c1be559d8690967e1360bad6ebf. 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/ES5107600084.
Aromas de Libertad (Son Tus Perjúmenes Mujer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef4160f8d03ede2494b5715b2043d6d314c30d6477b8834ef45822ce3bb5ae6. 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/ES7960703428.