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 0x44131075ddb9745e5d188524c9539f79c44d73116b08e2b9cf3cb34ad93184ab. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3150943-067c-4aa9-aa61-6386ebca82b9.json and https://artists.proofprofile.net/proofs/artist/c3150943-067c-4aa9-aa61-6386ebca82b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 3, Moderato religioso
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 0x6e094150afe168f5ab2bf188cfff282eab367c6f42ec28e3b7559bd102fa126a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR10S1716386.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 5, In poco lento cum antique caractere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62d3c4bc2de3fda16a39113028b5bee491fe82c684623436233233d61d812ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S1716388.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 7, Moderato affetuoso collo stele antico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eed4cbee9ab4490fd29c7de6136a4f27279ac70282ca41228c3bcf800a45e9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1716390.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 10, Allegretto pomposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484c8ec88f7eb8c3fc0f42e47a5422cdca8e8b522e28697892f6c11841bbebd3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR10S1716393.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 14, Allegretto pomposo e nobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f03e417bcfe1fb9149f1d31019432eb6325eb147a88e863b55f2d6dcd29b609. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR10S1716397.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 15, Moderato nobile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c1fc2d8266e4e202d3e1e3ac584993947ac5e4973f792dd2cb6a3d4937442b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S1716398.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 1, Allegro fieramente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5291158f56f04ab80eb1d9d997fbf9fdad1964b290fbc2db766399b394f2ae. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/FR10S1716384.
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
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 2, Allegro comodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b19c31284cc08c8b24cedab0920f2355e972ab3ea20e1394eb3710152446b69. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/FR10S1716385.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 4, Andantino religioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685dc84225664651a35fbb5fe799ebd476ba68be52e0f5713730b7015c5d9ff3. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FR10S1716387.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 6, Allegro pomposo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dcb3c21bfb5ca7e0d80929f8046bf9ade6fad2177bf1afc13fe8599175b728. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR10S1716389.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 8, Allegro commodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd440d2c6e0bfa19b1e493ebab760ee2ddfc07b52d59526bf6571ede4634e52e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR10S1716391.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 11, Allegro spirituoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc6126e76c9f2353513ab5be28093208f2aab8fb49fc02881db178174187f8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR10S1716394.
Oratorio pour le couronnement des princes souverains de toute la chrétienté: No. 16, Allegro commodo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901c45dd56699dfa44c18ea8765f79b29e2c9e6ca40e02e3be7277810189524e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FR10S1716399.