1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 → block OTSBitcoinBlock must exist at that height 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 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 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.
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.
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 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)
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.