Choeur de moines de l'Abbaye Notre-Dame de Fontgombault
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 0x94b771ae338566899e0207ffa60ea11a8554caca535ba7429327bfa751f2ec3c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ccd57ca-b83b-4f94-85f1-d7d7bf4ade0a.json and https://artists.proofprofile.net/proofs/artist/9ccd57ca-b83b-4f94-85f1-d7d7bf4ade0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saint Joseph - Chant Grégorien de l'abbaye de Fontgombault
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 0x0475b7043f595c229080f3939fa83d543e9b5b5daf12a83334209b1fce9d6837. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CH6542429403.
La Passion - Chant Grégorien de l'Abbaye de Fontgombault
Dedication of a Church (Kirchweihe/Dédicace d'une église): Introitus: Terribilis est locus iste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93559667fab1a3dae2dae980c8eb26ce8d4b758ed7ac722852ea19941bee1d13. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEF057731301.
Dedication of a Church (Kirchweihe/Dédicace d'une église): Kyrie XII
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d7512afdbcb946508e5101e7b4c0987386c80b82ba7ffdf0f7a039e3eb5e6e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEF057731302.
Dedication of a Church (Kirchweihe/Dédicace d'une église): Gloria XII
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71d6783feefc570059d0e3d2c7502b7440634a90515c18292848f0a02021f7d. 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/DEF057731303.