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 0x88ba43e2a6ab1713837b3455c519f39427df2d86a11b954be6f86e23043c2348. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9aa9f1ea-c486-4f50-855f-5bfbe465ba6a.json and https://artists.proofprofile.net/proofs/artist/9aa9f1ea-c486-4f50-855f-5bfbe465ba6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corrido a Leonarda Salgado y Adolfo Najera)
El Serio de Wisconsin Jaime Flores de Apaxtla Guerrero
Corrido a Luis Alberto de los Sauces Guerrero
Corrido a Richard de Guerrero a la Baja 67
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 0xc8550b37c464995f13a746c2c2c285bc4ea50f3646f7240259ac365c3e07be7c. 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/QZTVM2422271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3406645dad9eda271d80727a01865a8b9c216dd926a7c40e2d28ce144ba7644d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTVM2422275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8295cf4d7aa56d4d04a1f53b7382c2fef9c9e53510d7e0c6698ba86d50b95b. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/QZTVM2416015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35f6b47e25844b61b259a428f167c86d5bf86b51ae7ecaf8418bd58bc367f95. 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/ESA012522259.
Musica Con Banda El Zarco Benítez De Apaxtla Guerrero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259e24017f6a9102ab2b698c9c784121215439d331d0c18e5881c886583d9175. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:33:14Z), 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/ESA012522260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582d5eef44f8400a7857a812f2575c11ad849ff756b845fd19ba6bd146af79b7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ESA012543546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef5fd027b95869b8dbba415627ef8c933234c4909dc491b8e115b6a133a614a. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:52:23Z), 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/ESA012543547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aa75efe25f8ae72a349241be821e17d6f840b7fca876476ea13b55e8614d4a. 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/MX2832528270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf343d5db0579f182aa4192061047d258d33724f7f398701e32c66263854743e2. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/MX2832528136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213610826e2cef75842d2e3d182568972e2d1e5424f5d55e210e2bd618469712. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:07:50Z), 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/MX2832528149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a5471427f8857b88683be957571642e777ec176d4194fd14a49c34b502c737. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/MX2832528305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dab2b790cc851ca8995139c5fd376d6ce0ba3a1f9a31b1f344f51d94e68d2b7. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/MX2832547913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68366a9cad330ee5118adcd3f35484d96de0e5642803310fe9db8de8d5f83382. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/MX2832549609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6a0093d28bcac90c930ae9b44eb24b25612778ee8275d4aa170894d91eccfd. 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/QZNJX2565870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86299a3cb640e7a762e4c72dacf9e71c790d51ceb1293c2acdc398f80097c33e. 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/QZNJX2572530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f96931c148155502e902bbde9c978dbbbf93f894a4fc0a88c2bee8cdaa6cc0. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZNJX2573628.
El Corrido de los Benítez - De la Nonuca