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 0xc35631c3e4d07f9691832cf73d61e8b015db57a325e4f878cb1802134f2b21c1. 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/8b0919e5-b71b-4101-8add-780f4304cefc.json and https://artists.proofprofile.net/proofs/artist/8b0919e5-b71b-4101-8add-780f4304cefc.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 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 0x62449c21547d6ecfc5f91bff0abbd23d284a9fde402bdba003c0dd61d9ad08ea. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USHM91441821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091851c5aa80b41aa82585d21ece58b5ddbcba44c8ba8b85f3a2f71b2e45d589. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:08Z), 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/USL4Q1709769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bba8e9663dd0b798c77d55803b00d72ec5cd22cdb79ad43225e2f5b6c615a2. 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/USL4Q2156008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74f774661125bdf42145300a99b4543ff9248908b5e7ebcb36a2e37201ff6b9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/MXG382100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddb4057ef5da0fccf945d9f3ec32aa2627179dcd1f3071cc9c7ce0c2364c1dd. 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/MXG382100479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fd1fcf5acd47daf421f7970aaaf6c93c6aa10871dbc91d24f0588d394bb3d7. 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/MXG382100537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51364d7fc5248de87ba91a1df300bc49e7c767346419244258cbd717813541. 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/MXG382100565.
El Nuevo Timbiriche - En Vivo Desde Pepsi Center CDMX
2000's X Siempre (En Vivo Desde Pepsi Center CDMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640049a32d813fd8f45450b12722ce1f6b5b8e3fa3ec179a9d25528230984188. 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/MXD782402352.
Enamorado de Britney Spears - En Vivo Desde Pepsi Center CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a79c9b7e6c1b3531f24e26358ee704b48bd976e1d202078e6e1487015dcd2b2. 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/MXD782401549.
Solo Tú / Tú Y Yo / Yo Contigo - En Vivo Desde Pepsi Center CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5096ddfdfef12becf6f77a27083a7fed218600c5072f103130c39369db238b09. 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/MXD782402356.
Dos Enamorados - En Vivo Desde Pepsi Center CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf070c8ae10bb8a9d36e4923507bb2d1008d490c5ab916a35fda9856c2d0b89. 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/MXD782402351.
Masoquismo - En Vivo Desde Pepsi Center CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139803e106fdcec984425700df50798cd8c4a3ff0be609dc53fe54548085a4ac. 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/MXD782401546.
Welcome - En Vivo Desde Pepsi Center CDMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc877d5f069b5df02ebb7c1ccbb5e7386f1e0eaf9f7d6a8526ba5a9949ecf1b24. 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/MXD782402359.
Enamorado de Britney Spears - 2000's X Siempre En Vivo Desde El Pepsi Center De La CDMX
Enamorado de Britney Spears (2000's X Siempre En Vivo Desde El Pepsi Center De La CDMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a79c9b7e6c1b3531f24e26358ee704b48bd976e1d202078e6e1487015dcd2b2. 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/MXD782401549.