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 0x7a0484395ff1c87b453ba3dc388e13c1b4e0bb9ac886315655880bc8f6216947. 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/f0b24889-be8b-4504-a4d8-8299e0b6bfdf.json and https://artists.proofprofile.net/proofs/artist/f0b24889-be8b-4504-a4d8-8299e0b6bfdf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Los Serie De Los 20 Exitos Los Mejores Trios
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 0xded3321ed8c301c9a4f4bd125b487db97b554f231f422b01216ad4aaca2e8be4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF010101496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36003515ff7acac704ea39169eb6c099780cff8a051a7a98864bb4094e37c6f. 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/MXF019400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ff3f4c0f90173eb598d60642e0ca645a418a4f202c013f03c5d543921a1f04. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PL0B62325329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d74e4ddd9d2c5849797d57b53cbd599122404524daf245be87891db2f4f7e8. 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/PL0B62325330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8210f44d5eaeae7353ce4ae383a03514403ef2de240b2571b6832a86b5003adb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PL0B62325331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954856fd257db509d15476c69384a0ce83d9b623b14d8790af8a13bb78349897. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX991588838.
Personalidad - Los Grandes Trios - Las Sombras
Mariachi Guadalajara De Silvestre Vargas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf870c21ad93978f96e73583467fd6c203cbaa892168a91ee5c77f33e072142. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF010401296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1100e10ea1fb3a0b57b8d8a322b869b03784ed2b6b99d1210e12fb6846cb2672. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF019400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d83e3bf2eac874f02faae3814e12648beeedef2a7caf53c35ddd088fb42388. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF016400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda981620bf530994ea689d3d97ee4efe822e8c5d64e7692e299736b63012641a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF016400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1eb03bebfbd8134d921503a6609c3ac98142e5e80ea116e02310657d2eaf81e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF016400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef6095a6b5e6cb6c8eb0b6c376374326c580a97fb69392db90324f2b5c1cb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF018601149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba72e8825f0d8bbcbe777d9bf34605459b2e317c41998e692221a389e36f733. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF018601153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeae1c988260e890f865f6f0035428641c132e5930efcca9d7e94ee9e11a09f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF019501318.
15 Boleros Inolvidables Con el Trío las Sombras (Versiones Originales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4dd124da75caf291d2a4f3c46e9eff09e3399cec16749346c26d6b8c7a907b. 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/MXF018601161.
Los Grandes Tríos Románticos Que Debes Escuchar Antes Del Fin Del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b09e444c8f1936dcd23857dc42f548536c5ad190de1a16b288379b8622365a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF144900035.
RCA 100 Anos De Musica - Segunda Parte (40 Diferentes Grandes Trios - Unica E Inigualable Coleccion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23e65368a7457fef8e4faf9613c4b33f382128c06d48710b92492139b8159e9. 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/MXF019901545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd170127784284dca8f82453ffea0ead7acd640ce797764862d04fe0e417b04e2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF019400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf3286bde04c6626464ce61348fd1563b8999cf657bc44b07c09d7d04686946. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:36:46Z), 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/MXF019601187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1df85e69428e8601942f7734a4a5417217241281fa9880751bfcd3e5f325f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF016100716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dadf47c57a98f41a9d9df76b6626bd2865509037897d9ea86b0ea902bda34cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXF160100901.
Nostalgias, Vol. 5 - 20 Éxitos Inolvidables de Siempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d04aac8c5a22dd04d0aedf9babbdde87a5d14235e3e6d8cc9f17f632622510. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF550908027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e9969bc0de77d2f709ef3d6d0ee53cd837751b4f6e35e078c9ca62a6390c10. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF550904029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5571dc440a555f20a906b3d560474d77e2179ce3ef4453be73de4cf1d0620652. 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/MXF016800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c14f1dc80bba4839fadfca9f392316b9d28c5b18500ec89f915c4f6e7fd1d9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF019700617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4854ed51f3843cfd6779782aea6722c98c2c28fb98c862319f80b22e204e3a4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF019601243.