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 0xa80d0a912fbbfd90603df61cda8b5ca8be5530b3977b8048832ff734fe9214bc. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d11425f6-ed1f-4cc0-bb64-7ca8f835df10.json and https://artists.proofprofile.net/proofs/artist/d11425f6-ed1f-4cc0-bb64-7ca8f835df10.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Amadeus Música de Dios - Hosanna en el Cielo, Vol. 2
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 0x4714dbf85ef6ed76c5d1f1682670c24b011c242571ee62ee80cf87f14b066048. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJX2347475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb53fe764a3626ef8a0e66f9a5526067c2d1d1ab1a8f1765158fac0e27cb5947. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:25Z), 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/QZNJY2338684.
En el Cielo Se Oye- Amadeus, Música de Dios, Vol. 6
Gloria en el Cielo - Villancicos, Vol. 5
Que Viva, Que Viva Cristo-Amadeus, Música de Dios, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26212110e2b85f155b4167a6c90c0e261c464a25c305af95c00aacf911cf9f0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZNJX2359369.
A la Casita de Mi Dios, Villancicos, Vol. 6
Ya No Eres Pan y Vino , Amadeus- Música de Dios, Vol.6
Ya Se Siente la Alegría, Instituto Champagnat