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 0xe96379f1225aa79f8784d97d90eed49ee756a7839fd3b1b06dd8d2e878793eb9. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84967d2c-8ba0-42a7-892b-148949ec151c.json and https://artists.proofprofile.net/proofs/artist/84967d2c-8ba0-42a7-892b-148949ec151c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Norma, Act II Scene 3: Qual cor tradisti, qual cor perdesti (Coro/Norma/Pollione/Oroveso)
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 0xbaca2373d8b914833a5c54a61d371cdf3375b26d084e7cab3a81b1cd1909fd55. 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/GBAYC9701154.
Anna Bolena (1997 - Remaster): Né venne il Re?
Orchestra Del Teatro Alla Scala Di Milan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3cb1ec5ca85c8499164b5d4043046ae32492b4ee309bd41d07cff0b09a1b46. 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/GBAYC9705727.
Anna Bolena (1997 - Remaster): Deh! non volar costringere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94dc9b74c9fd8c84c8bd9fb7c1afcb918cf6b5664ca67fe61fd69170ff6d0dd6. 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/GBAYC9705730.
Anna Bolena (1997 - Remaster): Oh! dove mai ne andarono le turbe adulatrici
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db0adfda36e34f0032bb8bc7659550b52814b817976d559bc8c36d857a1ef74. 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/GBAYC9705758.
Lucia di Lammermoor (1997 Digital Remaster): Per te d'immenso giubilo...Per poco fra le tenebre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6127d3d514a82366d83e90a227d8e67f812ae5841120b851796ce3b26b7a35e9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC9702961.
Lucia di Lammermoor (1997 Digital Remaster): T'allontata, sciagurato...Rispettate in me di Dio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534c7e349ccedeec65ac4dc21912c31a1f99d653f7e9fb6575611394d239c9bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBAYC9702965.
Lucia di Lammermoor (1997 Digital Remaster): Sconsigliato! In queste porte chi ti giuda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0ebda7a9ccd47cb33a8a35db59de0ebe8f7980f2550967f6154a143b634d3c. 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/GBAYC9702966.
Anna Bolena (1997 - Remaster): Non v'ha sguardo cui sia dato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b8be6572cc4eb0defe97b9d41c3b530719695490bce435d767231de617671. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBAYC9705733.
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
Lucia di Lammermoor (1997 Digital Remaster): Percorrete...Percorriamo..le spiaggie vicine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6d0d401e3385febf7cf5abd9b438ff197ba556b065da302813e98eaab73387. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBAYC9702943.
Lucia di Lammermoor (1997 Digital Remaster): Il tuo dubbio e omai certezza...Come vinti da stanchezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe21c32b280cf45531531eecf01bdac87a59e4abe85e6bf90d617ff42ac8c85f. 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/GBAYC9702946.
Lucia di Lammermoor (1997 Digital Remaster): La pietade in suo favore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f995209ed9750c6c9fcdee3a23c6b674456b684579934a7964c82f008004cb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBAYC9702947.
Lucia di Lammermoor (1997 Digital Remaster): Dov'e Lucia?...Qui giungere or la vedrem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8711d282b9023162bae53d52cedf8dc42225e23d27743af29cd6dfd7adb5f7a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBAYC9702962.