1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd5f9999e80377a0b17e158a99295f4709de67a3d8f62f2fd225dcf401091853d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0dbe1b6-a335-4b6c-963b-794e855c96be.json and https://artists.proofprofile.net/proofs/artist/b0dbe1b6-a335-4b6c-963b-794e855c96be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Strolling on the Champs Elysées - Light Underscore
Strolling on the Champs Elysées - Solo Accordion Version
Shopping in St Germain - Light Underscore
Shopping in St Germain - Solo Accordion Version
Old Flame de Montmartre - Light Underscore
Old Flame de Montmartre - Solo Accordion Version
Old Flame de Montmartre - Barrel Organ Version
Old Flame de Montmartre - Barrel Organ Version, Light Underscore
Old Flame de Montmartre - Solo Barrel Organ Version
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 → block OTSBitcoinBlock must exist at that height 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 0x2de8a2a9e44ea0cc97aeaed3fca718fab4c01d3a98f78e4e322ba0abaf45ea4c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR6Z01100020.
Java de Bastille - Solo Accordion Version
Monsieur le commissaire - Solo accordion version
In Paris and in Love - Solo Piano Version
In Paris and in Love - Solo Accordion Version
Let's Go for Lunch - Solo Accordion Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed5cb8e07532f943d28e9d51e1412be6b4dd7b39b27a14dbf5a7e1018f5ffa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6Z01100044.
Circus Boulevard - Solo Accordion Version
Paris accordéon - Solo accordion version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039567af00036aa8b7cf07e51259938ebd44f52cf57dc61f7ab0516e17abbf24. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR6Z01100075.
The Artist's Accordéon - Solo Piano Version
The Artist's Accordéon - Solo Accordion Version
Harry's Bar Boogie - Solo Accordion Version
Charleston De Joséphine - Light Underscore