thumb|Raymond Lefèvre Raymond Lefèvre (20 November 1929 – 27 June 2008) was a French easy listening orchestra leader, arranger and composer. Biography and career Born on 20 November 1929 in Calais,
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 0x81d1efc787fde19d110a5dbbcd0050b834ba905e46fb3f885bf0da131523922c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d02aa86-1b3c-495f-894f-bfd45770f1e5.json and https://artists.proofprofile.net/proofs/artist/5d02aa86-1b3c-495f-894f-bfd45770f1e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le rat d'Amérique (Bande originale du film)
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 0x5b5598a2eec690ea04a7361458ada3e1fe3314107fc81017fdeab85563dc465a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US6R21347292.
Jo / Les Grandes Vacances (Bandes originales des films)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ec5fbfc396f661242b207702bc9462cb11b9cbbec9964d56fe5057906e1f0f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX086700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa861da0d26bb80ec18b2b0fe6a3f9dccf37dea0da88898c82879e7c9d1d52aa6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX087190175.
Louis' unheimliche begegnung mit den Ausserirdischen (Original Motion Picture Soundtrack)
Louis und seine verrückten Politessen (Original Motion Picture Soundtrack)
Balduin, der Schrecken von St. Tropez (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72d9af0844eef0433233feaef47d1cc2de85ea2eed11f7054baa629bbdbc863. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX087090006.
Balduin, der Heiratsmuffel (Original Motion Picture Soundtrack)
L'intégrale des Gendarmes (Bande originale des films)
Douliou-douliou Saint-Tropez - From "Le Gendarme de Saint-Tropez"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d451f1930dfb03e99496772ad58fcf04a6ef800145a1faf1b6b5f2ec093bf18. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRZ726400004.
Générique - From "Le Gendarme de Saint-Tropez"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11986e406f5e9ed67ac59a3cf05ba451c2070fc4a562cc9a21fb468d39a01aed. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ726400001.
Les garçons sont gentils (From "Le Gendarme à New York")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3193d07543bf64b9788cde7718774c80221825a62034645455d7a0ce31263a82. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX080400248.
Le Gendarme au byblos - From "Le Gendarme se marie"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931c3fb6874e7079c154906e5b22d6f79ce6c91973b00ce5208485fe968ef074. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX080400253.
Valse de la séduction - From "Le Gendarme se marie"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa66894ba488a7231125f5c89365739f5f875a5b3d184587b1d79c4022931cd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX080400255.
Marche des Gendarmes - From "Le Gendarme et les gendarmettes"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f668d9bac0f9daa284f772bbf8dd035a2bbdbe7259a246e3d6bdcdbd9e67dd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX088290042.
Marche des Gendarmes (Version 1970) - From "Le Gendarme en balade"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72d9af0844eef0433233feaef47d1cc2de85ea2eed11f7054baa629bbdbc863. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX087090006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137a49a6f9d5d86580bb1fdcb5a47a3d16a481619a376ccf4671d2212e50860b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV112200020.
Palmarès des chansons n°4 (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafbcff0b6d2d8d987630c66c9cd3709cd3ebf6014ff2a089b771923660c22c7. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX086700184.
Palmarès des chansons n°3 (2023 Remastered Version)
Palmarès des chansons n°2 (2023 Remastered Version)
Palmarès des chansons (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457d81271d3b10991daed78203e476faa8b1a17668e16af9030c06cfa8180475. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MXF551257226.