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 0x626658d84645c7cce162ddc2e0e3fa40bc6bcaee3842cb6557b0ef6fe9633fc6. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b65d904-018a-4ed4-a8c3-d47c24438b0c.json and https://artists.proofprofile.net/proofs/artist/1b65d904-018a-4ed4-a8c3-d47c24438b0c.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 0x280438b0ae874501ba98118d1719dd68c5e16ed955e195c2dd4dd57b010936f0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QM6DC1879593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c8c8c2e3bfd279be15bc0b7e35d489e067e8486b23aa2e4781e24e679c4a5. 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/QM6DC1879603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5873d9dbef9f7beb3e4a606b79840d69d7c2071124516ec7e292ca79545aca. 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/QM6DC1879607.
Historias Del Pueblo Con Guitarras y Tuba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5d71488ed805f04410b2b94220db6233c9d11f39ef6158754dfacf1ac6390c. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QM6DC1858205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cacfba6fd70313d6d1cd0c20b9b79a9735ca3e7b444d73fea325229c9f18a65. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM6DC1858195.
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 0x6b0c2a38d3e98efbda72150a9bdd993acf600a52f4b4661652f9c8ec92f70577. 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/QM6DC1858204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52ddc4cb9a66fbdf8b0a06258c2e4aabfcd776df34b7f24edf44e827ff33c09. 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/QM6DC1736595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce550998c420b63b96c645adf9cc8dcb0b5e37531927ca591e5127fe96a0c0df. 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/QM6DC1736596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b091c426d68a12da354133cd733f29b0f97e15ea829c51fe7f4e60d426ffb. 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/QM6DC1736600.
Orden Pal Desorden (feat. Los Nuevos Ilegales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8dbddcd0177a8f3b0a6828999b8a5e832d850ee032356566223a585da1fa66. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM6DC1736604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05386aaf3657a3c9b0927065a7561321fd3bb1bcaf0c5997ad930594961584d0. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QM6DC1736602.
Querido Amigo (feat. Los Amigos de Culiacan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f55945f973063fcce75253c0a3a3c25644f21dffd912dd76cff00501e797588. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QM6DC1736610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320060b1c6e2cada7d219422b24eaedb75834d67e2fbc0c37c1e5d953a342281. 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/QM6DC1736675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4966485861d7193c227b71627788a9699e2745d8aca5f923911f41e01a8fb5ec. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6DC1736679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087758c76a7ef55726b95b5f96264107ff6420b12d02d63fc546a7c817f3be1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QM6DC1736686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f35fe128433526eda3a95accd706ca2ad99d2f079591c5fe6991c9f4aeb1b7. 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/QM6DC1736647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299e2a9ad144eb8e4afde2a3d8e7fa23e3a51233ad0cea6f8a9849f41fe0338e. 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/QM6DC1736651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0820cc82953872e004f60b98ea5d68cbf680b46320b6a69a2e88322b8ee787e3. 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/QM6DC1736652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614109634ef0b8e000165d0a15dd900c7d0d100046f611a39ed17ff5f21db7bf. 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/QM6DC1736664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6df2b53d296f603d9807982bef69118c84277709ab068ebff2b24e995caa7b. 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/QM6DC1736650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a66f4b8569448249ed4a099f88c025a5bdfbd7a8221ea56f7ae1f79c0a3f53e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM6DC1736667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ba4afe3361f0000754ff12deca3997531889999e48ebbf1321bbb8aac51ef7. 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/QM6DC1736634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04a51c3ef5209b7081e81238cdd6072534b03ac470c0fd567da7d2019b4827f. 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/QM6DC1736638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee993a4da73975d3d9ff06da736fdb9e2806229acb1307d967e53ebbd7212a0e. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/QM6DC1736633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822437f7007cf1762809a4388d7392e9c22d1b4a1161801f8b95c43cde55c273. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6DC1736637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b47832c447cbc854a6088365469cb7529ae3df2b8ebb2b8a8bffccdaff78b32. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM6DC1736640.
Straight Outta Sinaloa En Vivo Desde Culiacan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684546387c93e4d98cafc47853ff5f375fec82d7eaa6a3d24628029fc6ccecad. 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/QM6DC1720189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993a1b51e75e8dc4032c9a263b53432e511ca6206fc72749511218d8df689c43. 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/QM6DC1994936.
Pisteando Con Larry Hernández, Vol. 1 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee273a01cf7ce5da69e5ae5a5aac5263470212f499ee14438fbd84a7a0be156. 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/USANG2261534.