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 0xe45740a7b32759b0008d4b77d104b58775f33c37a0545feed4810765c6cfa778. 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/1cf1653e-76f1-456c-917f-338f035bd128.json and https://artists.proofprofile.net/proofs/artist/1cf1653e-76f1-456c-917f-338f035bd128.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Recuerdo De Una Noche Inolvidable (En Vivo Desde Guadalajara)
Ahora Lloras por Mi: El Amor de Mis Amores
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 0x895c58ab16a0ebdea28c4fe6fadec92bef3a69f899a09494a93697dd2430a5cc. 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/MXB711800317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6831bef010e081bb10884077292bb9020b8695641ae327f4d2333ff529cbad6. 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/MXB711800323.
Al Gato y al Ratón / La Culebra / Casimira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad05ee5512b62cafc7b22f65d1e5e13818cfba0f2f56d2af946ed615bc8c631. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDQH1903621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78ad4cbc5f27039787d393eb70531f4aeb2c75b627c1768dccfab42ef861b79. 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/QZDQH1903622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870a921f128c5b4b3e9d4108c8651ea1ef7d635486ed920ac3b3d68e410c2068. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH1903623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72568022d775f0ff7d7d8e7735186474792218b773613b8a5d1434673d9b2726. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH1903625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05479b6e91abbf7d1bc35912bc33f3b8d7c35f6630bb6af776cc4a943f6e1b81. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH1903626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5a9a41c57501b54e6b228630a44aa38267dc408fe6ea0ba44d4a4ed1dd36c2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZDQH1903627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff96ab8c24b6ad233b16675b460c5f0ed15eeeb865ce143d8c18cdbbd1e265bd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH1903628.
Un Poco Loco y La Llorona (Popurrí Día de Muertos)
Popurrí Mentiras - Sergio El Bailador - Ahora Quien (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f353f305ba763cc819e7e4258bf32a19b9420f03f96bab6a8bd2e75e20dc596. 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/US3DF1423454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c42d4bb0790808be0e9c9e9a07c76cc15b0964a0b04877536c3e22e3705f1a. 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/US3DF1423459.
La Ultima Vez (En Vivo Auditorio Benito Juárez)
200 Copas (En Vivo Auditorio Benito Juárez)
A Poco También (En Vivo Auditorio Benito Juárez)
Mix Bad Bunny (En Vivo Auditorio Benito Juárez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd5a8a004228c563c373cbf4b4142cf3332fd45e94724546172e958280cf03c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2371352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b70db38080773c0642d7ce3813a2ded7609e5cdcea5c962f7f8cb5678436949. 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/QZDQH2374699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe26aacced9dff6d9691af5d928015e6731ca9febc63afd1055026bfade4cb8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZDQH2381781.
Medley Joan Sebastian: Lo Dijo El Cura / El Peor de tus Antojos / Aunque Ya Tengas Marido
Medley Fito Olivares / El Paso Del Canguro / Juana La Cubana / El Colesterol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f87cb1decb93f7bb076f4cd104e6fe861d1873102af79d425a45f7277eb2d7. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZDQH2531176.