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 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 0xbcb797df9e77ae357549adf7ef7923b46a5b1a22b7a01b4a19f800e626e0fd12. 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/4b692ce8-17f5-41c3-8819-510d07704f61.json and https://artists.proofprofile.net/proofs/artist/4b692ce8-17f5-41c3-8819-510d07704f61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Frente a Frente en Tierra Caliente: Los Player's - Los Pajaritos
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 0x90a20f801fb447a72d303c87c84c924080e2817638a46049087893980127b295. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF360235735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aad3ad5365b92b7c9583dbc671ca6624c8eb6519a3c69810f8aa4bd25da7334. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF360938371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b17276481e38b6da4ab4051a69cb9d96d4a2f22cb74ff483ae88345b5abba5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF360938372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b8160cf0cadbb499d709e7c0ba6a8b98ce042910884f753033248a1c0e707d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF361139058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f9d80a146d92c1fcc4eeeaf47a5157fee297a242f599480e03de8ffe6c60ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF361139061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbc011b785b44b888b91e7714f5e1490305d854e329f3ef30214eaa8a389125. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF361139068.
Me Enamore De Ti: 10 Éxitos (Remasterizados)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a404cf66e4c935649a66e0dd603f00d1d1557ce405d314c8c0e392a39aa59c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGJ2008985.
Mescla las Moviditas∶pelotero a la Bola / La Gorra No Se Cae / La Brujita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b261062436432af0575630601e1a7fe9cdf1d2878674446b8efa1b514b28f7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USCGH2148968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7c33ff397ce14fd0fbbfa330ce240ada467f280f911a7394b668df13dd4b3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ESA011660756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36f7ad41f040ef32e30adf8c55795c9aca0b4bfbb7ae998af5cd0c76d92054c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZNW72414995.
Las Canciones De Don Robe García (Como Daga Clavada/Partiéndome La Vida)
Las Canciones De Don Robe García (Paraíso/Siempre Te Amare/Amarte Es Poco)
Las Canciones De Don Robe García (El Mejor De Todos/No Sé Vivir Sin Ti) [En Vivo]
Jony Ramirez y La Simpatia de Tierra Caliente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52429aa2463424a637df09d09a7554d7b794f8ccef984262a45d9bdd15e8181. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA011836803.