Children From The Royal Opera House Production
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a55859f3f504fc0911ce8f9897260bfd2b8029e897a8d0c074c7081914ac73. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a496815d-9821-4c4e-9e7b-2153c93de5f8.json and https://artists.proofprofile.net/proofs/artist/a496815d-9821-4c4e-9e7b-2153c93de5f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Werther / Act 1: "Assez! Assez!" - "Noël! Jésus vient de naître!" - "Bravo pour les enfants!"
Orchestra of the Royal Opera House, Covent Garden
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8a565aed3fd526d70a8c306b296b5d104049315ad6090f8bb9db6c1703c0b9. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/NLA507812202.
Werther / Act 1: "Jésus vient de naître!" - "Charlotte! Charlotte!" - "Ah! monsieur Werther!" - "Arriver donc, Brühlmann!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6e321855cf291572225163da15a2e848d59c1b5556c8b688cc9b9f161be817. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLA507812204.
Werther / Act 4: "Noël! Noël! Noël!" - "Oui, Noël c'est le chant de la délivrance"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3866b2e74019693dfb53cea35ff3040b1e58993f2467223ca8a6a6196527ff87. 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/NLA507812232.
Werther / Act 4: "Ah! Ses yeux se ferment.." - "Là-bas, au fond du ci- metière" - "Jésus vient de naître"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98b1014ab76f4e8a438ee83bc36e905a115d7acdcd994e4b2c88bcb6f908598. 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/NLA507812233.