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 0xe120bd8c637c11ce3759ac9a322d36cccf78cd565b7c3e36701bf4cf50ca3ed8. 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/206b05a3-c66d-46c3-9fcd-f88d1d35a4e5.json and https://artists.proofprofile.net/proofs/artist/206b05a3-c66d-46c3-9fcd-f88d1d35a4e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mon mimosa bleu / Vieux Salomon (feat. Michel Legrand et son orchestre) [Mono version]
No. 2 : La grenouille (feat. Michel Legrand et son orchestre) [Mono Version]
Seul un homme peut faire ça (Mono version)
A Paris + 17 succès de Francis Lemarque (Chanson française)
Marjolaine (feat. Franck Aussman et son orchestre, Les Fontana) [Mono Version]
Vintage French Song Nº 94 - EPs Collectors, "Marjolaine"
Rue de Lappe (feat. Franck Aussman et son orchestre) [Mono Version]
Rendez-vous de paname / L'assassin du dimanche (feat. Franck Aussman et son orchestre) [Mono Version]
La mistoufle / La guiguette au bord de l'eau (feat. Franck Aussman et son orchestre) [Mono Version]
Vivre comme ça (feat. Franck Aussman et son orchestre) [Mono Version]
La poupée magique (feat. Franck Aussman Et Son Orchestre) [Mono version]
Les amis (feat. Franck Aussman et son orchestre) [Mono Version]
Elle n'avait que 17 ans (feat. Alain Goraguer et son orchestre) [Mono Version]
Une rose rouge (feat. Michel Legrand et son orchestre) [Mono Version]
Dans ma prairie / Terrain vague (feat. Michel Legrand et son orchestre) [Mono Version]
Ma romance / Mon soleil, mon printemps (feat. Michel Legrand et son orchestre) [Mono Version]
J'ai pas d'chapeau (feat. Michel Legrand et son orchestre) [Mono Version]
Le charmeur d'oiseaux / Miséricorde (feat. Michel Legrand et son orchestre) [Mono Version]
Une marguerite / Toi l'enfant (feat. Michel Legrand et son orchestre) [Mono Version]
Mon mimosa bleu (feat. Michel Legrand et son orchestre) [Mono Version]
La guerre des boutons / Écoutez la ballade (feat. Michel Legrand et son orchestre) [Mono 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 → 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 0xb8c8078a28767d40b8997a2ea9e34570cbf4a26c258a7eb665ffa1124ab98f8a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRZ035701570.
Essential Five (High Quality Restoration Remastering)
Heritage - Francis Lemarque Rencontre Francis Carco - Fontana (1966)
Heritage - Les Jours Heureux - Fontana (1968)
Heritage - Ecoutez la Ballade - Fontana (1962-1963)
Heritage - Le Temps du Muguet - Fontana (1958-1960)
Heritage - La Rose Et La Guerre - Fontana (1965)
Heritage - A Paris - Polydor (1949-1955)
Heritage - Marjolaine - Fontana (1956-1958)
Heritage - Florilège - Polydor / Fontana (1949-1968)
Heritage - Au Son de l'Accordéon - Fontana (1963-1965)
We're Listening To Francis Lemarque, Vol. 2
We're Listening To Francis Lemarque, Vol. 3
We're Listening To Francis Lemarque, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9033599d657e59e68747c8497f0640a7967d1a1f8f410fc052ddd23c6241d28. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRZ034900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c8078a28767d40b8997a2ea9e34570cbf4a26c258a7eb665ffa1124ab98f8a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ035701570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c21f65627e10aa5f8a2692af2874860bd681779774efdc4702ae6f5bf379c86. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRZ035701330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ef360d9ed3b3dce360632e9c50b6f4dfe026acc979db7fd01e2d8719420fd. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRZ035902260.
Francis Lemarque - Le siècle d'or: À Paris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84496f2f9a4243a7f6d6b19f9eba78a03577f017999438451089bda3b859fc68. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80850595.
Francis Lemarque : À Paris (Histoire Française)
7 merveilles de la musique: Francis Lemarque
Meilleure collection française: Le Meilleur de Francis Lemarque
Francis Lemarque chante ses grands succès (Les plus grandes chansons de l'époque)
Chansons françaises à textes : Francis Lemarque, Vol. 1
World's Novelty Champions: Francis Lemarque
Essential Classics, Vol. 340: Francis Lemarque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c04219565cc710d6b4214e98c2e73f5cb6f5616f6594780c8ebea0d8ab5244. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX089750376.
Les meilleurs génériques de l'histoire de la télé, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c04219565cc710d6b4214e98c2e73f5cb6f5616f6594780c8ebea0d8ab5244. 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/FRX089750376.
Anthologie De La Chanson Française - Chansons De Marins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec442f57d17cd3b2ad93f6cb2d18da968d83e02386e4db5aac98cec6d8bfd3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:05:07Z), 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/FR6V89400416.
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 0x89bb09c31262de42337b88d95f27d281f8eb879f5eb5736a132f5cb61604674b. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/FRZ131306220.