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 0x456b161ead0ace924c12486ccb9e2aaae4ab733cc8ba48d0b29300152b138233. 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/e1642600-b55e-44ed-92df-08bf41676c8a.json and https://artists.proofprofile.net/proofs/artist/e1642600-b55e-44ed-92df-08bf41676c8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Cumbia Árabe / El Último Rodeo / Camino del Desierto (Cumbias 70s y 80s)
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 0xeadb946acd99030546328a62ed268e4f6f54618838057ec798c0351828e9783b. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USHM91924366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8d2ca71e593ade63cc08cd9494146cb96151f402a2007dbe3d891c84f58640. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USHM92058557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30347f142e81a1772e45caf097327503f5ef30d366b4bd00cba470114376f0c. 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/USHM92058558.
Retroquebraditas: Si Tu Boquita Fuera / Bailando de Caballito / La Niña Fresa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf316fc7589d433f58aafaf015faf8e1c84e06d2a14f6a4e9052ddf5b7327635d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USHM92058559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32d8601e3a09b191b672e98df07838de4a66b03a9b044598351e261078b98e0. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:21:54Z), 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/USHM92058560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4d813fba2e5468498c2457177d7e5f3ce09c249182c1effe74c3c16a760380. 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/USHM92058561.
No Se Va / Desvelado / Cosas del Amor (En Vivo 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7af71cc8b876c13834f3e2b2b3029a10a5843c5afc0b6149cc40bb4439b89c4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJW2414201.
Sones Costeños (En Vivo Desde San Luis Acatlán)
El Palomito/Que Siga la Danza/El Burro Loco/Las Amarillas (En Vivo)
Mi Ritmo Alegre/La Mama y la Hija/Sensual/La Prima/El Pícaro (En Vivo Desde San Luis Acatlán)
Cachetea/Dónde Están las Mujeres/Pelame un Huevo Machucame el Chile (En Vivo Desde San Luis Acatlán)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8461d64b89b2bc222575fcfb8ec14aabff81538bef0519edd5c5beffe1a0fc39. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZNJY2410967.
Amor Oculto (En Vivo Desde San Luis Acatlán)
Sol Negro/En Tu Pelo/Morena (En Vivo Desde San Luis Acatlán)
Julia/Teresita/El Poquilin (En Vivo Desde San Luis Acatlán)
Aquí Están los Magallones/Cumbion Colombiano/No Me Quieres Na (En Vivo Desde San Luis Acatlán)
Flor de Piña (En Vivo Desde San Luis Acatlán)
Chilenas de Mi Costa (En Vivo Desde San Luis Acatlán)
Pop. Magallones 2 (En Vivo Desde San Luis Acatlán)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008542ac9ceb8399e7a5fe49e061022653aaf3ae6f2542e04e73249b94772d09. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZTVM2411852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09fc649ab4c02c103f60273eaafb1664da52135ea07fff27120bd0c5dc55f60. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:55:22Z), 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/QZW9L2498646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d39a7f73468d1310c3aa8102fb44b1c44247f52e85bb717278a787cd41f20f. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZW9L2498648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588b8f93e248142d085d6012aedf07161236fe4459f75e7358895d42d0fde2b9. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:12Z), 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/QZW9L2498655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7e2aecce93574f9265ec1566e8ef9c4dcf959502213d64aa614babc45c71f8. 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/QZW9L2498664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd882a757d8a1ae550d8d6534fea55634a092751cc4ee2cddbe3d34d41e11c0a3. 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/QZW9L2440841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6bfe269bbb7a2829dd43ac1202dfb88f6b3843a8457de565f445509e6b6293. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:55:08Z), 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/US7VG2558256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9472b204b432d6ea1ab009c0c235421099c95435ade01c0e143c0ce220223500. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZGLM2501300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad0f2621df87ccb5eccc799d426946236d0915ac3617308074985d2bb76b243. 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/QZGLS2517809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ff996e2f105d9dd73da62f80d7181cac13dfba0db27fb034dae95cf8457ef. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZMZ92561521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de14b5c5e96703964de0a74343ce00733cd75c7ec36e36d9d4b2a196f42919. 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/QZNJX2528336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541843d7f8b0d0249d8252e04081543240059672c10ae56c8ade57bbe88cf642. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:38Z), 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/QZNJY2553563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12c08af51f341334e04ec6903ce1ed795d06500372ff58dc15fe8d53fb9f7ae. 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/QZNJY2553568.