François Rauber (19 January 1933 – 14 December 2003) was a French pianist, composer, arranger and conductor known for his works with chansonnier Jacques Brel. He served as the music director for the 1
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 0x8365b7319ffd5ba42e86795aac1972f29012a46c2ea3e531f2695b84ef607080. 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/9c680b37-19c9-4b3f-b6b8-98fb64205c88.json and https://artists.proofprofile.net/proofs/artist/9c680b37-19c9-4b3f-b6b8-98fb64205c88.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Rauber & Brel / Arr Tharaud: Valse de Frantz (Arr. Tharaud for Piano)
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 0x26b97fcd73deb63cbaef7efceb4b4c6e077c2382e19a9d14ee033121d3aa697b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1702477 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd65bc5d2fe4dd24b0fb81defce1d56d96b044040e7dc5b53e4551ffcfff80b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200740 — a six-check JSON result.
Verdi / Arr. Astier: Aida, Act 2: Triumphal March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46b8c0d59a666bf4341762cf2162523df4dbe0d03c92cd9b05628a1e0ba16be. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200818 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd65bc5d2fe4dd24b0fb81defce1d56d96b044040e7dc5b53e4551ffcfff80b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200740 — a six-check JSON result.
Rota / Arr. Astier: La strada: Main Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fa663c0791e0b3f7a1ee7d96e2dd5f2e87f3f8fc1abc09831c7e635c1cb2c0. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200742 — a six-check JSON result.
Lehar / Arr. Astier: Das Land des Lächelns, Act 2: "Dein ist mein ganzes Herz"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4885db67c46e819eb922dae612a192773b4c66ad7728b3181420fc630187cc19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200826 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1225f93f2da65474731ff94771418ef485efecd1738756cbe56980d7e8f49aac. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9402384 — a six-check JSON result.
Lino Ventura (Bandes originales de films)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209e065cb61d07187409faf47afd273a44a4a9a3556e3adeff4d7c28a3f72fb8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX087390062 — a six-check JSON result.