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 0x6e067d729f3030b89810967030d82414f66f433244aaed6c0f3e2917a40357a7. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6a8fbd7-a731-4c61-9716-0390d167260f.json and https://artists.proofprofile.net/proofs/artist/c6a8fbd7-a731-4c61-9716-0390d167260f.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 0xf36ac730e4e92554f8af40f6033b0ced588c3f245811714785d2e082c268b613. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZRP42367027.
Mix de corridos Potosinos (100 % mexicanos)
Mix de corridos Potosinos - 100 % mexicanos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6c8c0dd92c367d433666e7360ea078ae1191726d348e7b0550ca9513a8dce8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTBD2343203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e7225e4390aba9be2a699a91374464b214c2ec96bf4dc96a6ab6167fe8a7f9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:47:15Z), 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/QZWFL2300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fdd9c02636dfabc6de2538b06b0b35d343aa609de92041ba2ee459c3609517. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:45:49Z), 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/QZWFQ2311655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ed7bd0afbcd7d54e89c6acc97fe6486a79f9fa38b7b3fe84b6005f26cd6f53. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:07:34Z), 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/QZFYX2473454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032eab739538467fdd3fbc0afefe914ba5b1c02d2ee85b13869e59f741f1efc1. 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/QZFZ42438997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d07f10f67fea609bcbe623b7ada98be8de214dc1ed5fbb21b47c9b392c5864. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZDA82457246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744fdef42f621d9e47172a7de8caf60c5ebf155ea591ee7ed77d51132d0e857f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZFZ22519213.