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 0x4e0f38be3c1beba612aed26939828acfb2bf7577b9ab7ab9346412914ee3cd67. 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/689038ee-0a18-4ea4-8ccd-e9e04e6a8143.json and https://artists.proofprofile.net/proofs/artist/689038ee-0a18-4ea4-8ccd-e9e04e6a8143.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 0x2f84a682cc82cb3de37b53445b6901488946e531e9db5710803379c9ecb724ce. 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/US92U1902878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c1e0a4bfaa7ef8a5d1e4aa57f020ed0e4606ca282991c150d2cd37cc7e1c07. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QMDA72138367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae245e3c17d936849ae7493c9c8abf2e0c01fdaacececd656ae92c07b601143. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QMFMF2139609.
Yo Me Enamore / Me Desnudas / Tequila (En Vivo)
Baila Sola / Sabor Sabroson / Me Vas A Extrañar / Traigan Cerveza (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d107d490f257d890f6eef7e0830021e8acf6ae4a10bac353ab6abb1a58839ab. 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/QM6MZ2282341.
Tu Carcel / Soltero / Pasito Tun Tun (En Vivo)
Boquita De Caramelo / Vuelve / Mas Licor (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ebc4c645550331d6ada3901b03da8cf2c78c2558d93d4e96355c527aeece91. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QMDA72216544.
Quizás Si, Quizás No / Te Ví / Yo me enamoré / Dos Cervecitas
Quizas Si, Quizas No / Te Vi / Yo Me Enamore / Dos Cervecitas (En Vivo)
No Me Vuelvo A Enamorar / Te Llevas Todo / Que Locura Fue (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26045bfcc267b65a81d516f1142e8a9eaf15e7ecff35e412a09b66325852114e. 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/BK4DA2315576.
La Incondicional / Son Cosas Del Amor / Asi Fue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c827378878f228572bcbe93e9329b7c1c0171ca101374e072b2c02ad0d87e4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BK4DA2321646.
El Baile De La Cumbia / Tomare Para Olvidar / Chica Sexy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8658f9d6ed4b835f127fd05a46abe44b334e45bf4cce5d81e3fc02521a846e85. 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/BK4DA2447402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614d899ccffc57e1e54fc2a031eb2a5a4f06291c180a5b5d678f2460a064ebb1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BK4DA2461211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baf5987aa763fbcef57b68223d6dd1640a6ef11292db7adbec1b32d5c6ac9af. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:30:36Z), 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/BK4DA2500529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf448979cfc0cff9c0c9ca34ad5e32e19414fb3d0d4e2621045df987462b594. 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/US92U2401023.
Y Ahora Te Vas / Cerveza, Ron y Néctar / Pecadora (En Vivo)