thumb|200px|Grave of Jean-Claude Pascal's family in the Montparnasse cemetery in Paris. thumb|Jean-Claude Pascal, 1968 Jean-Claude Villeminot (24 October 1927 – 5 May 1992), better known as Jean-Clau
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 0x896d13f9ad63a73df14efceeb5c2600960eda5d9c662b519fed80b2f0330e277. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/edb0bae3-907c-42be-8fac-30cde5a0d796.json and https://artists.proofprofile.net/proofs/artist/edb0bae3-907c-42be-8fac-30cde5a0d796.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Déjà / Je voudrais (feat. Franck Pourcel et son orchestre) [Mono version]
Devinez (feat. Pierre Spiers et son orchestre) [Mono Version]
Un jour vous me comprendrez (feat. Pierre Spiers et son ochestre) [Mono Version]
Jean-Claude Pascal chante Charles Aznavour (feat. Jean Bouchety et son orchestre) [Mono Version]
Le poinçonneur des lilas (feat. Léo Chauliac et son orchestre) [Mono Version]
L'absent (feat. Jean Bouchety et son orchestre) [Mono Version]
Marie, Marie (feat. Jean Bouchety et son orchestre) [Mono version]
On n'oublie rien (feat. Léo Chauliac et son orchestre) [Mono Version]
So Frenchy : Jean-Claude Pascal 'Nous les amoureux' (Remastered)
Les cornemuses (feat. Léo Chauliac et son orchestre) [Mono Version]
Nous les amoureux (feat. Léo Chauliac et son orchestre) [Mono Version]
Jean-Claude Pascal à Bobino (feat. Léo Chauliac et son orchestre) [Mono version, Live]
Grand prix du disque Académie Charles Cros (Mono version)
Succès de Jean-Claude Pascal (Mono Version)
Un an déjà (feat. Léo Chauliac et son orchestre) [Mono Version]
Paris au mois de septembre (feat. Léo Chauliac 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 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 0x06f4e9c5a8db171bd5584499514f0887f96aabd55530150547d7569c883ff9d5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRZ116202630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb017006c13dd220f0cff704e23be6d03333aa5328864a856ae9354bf8fa2ea65. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/FRZ116102050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a410051520bdf4f98283318379ed0e8948d5e14c41c7fec7a9af1b6ee4f149. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FRZ116302810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c89e84fc9d10f6cd00757778e64fedb615a56741563ac668790021adca925f8. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/FRZ116302760.
Nous les amoureux (Succès Français de Légendes)
Chansons françaises à textes : jean-claude pascal, vol. 1
Grand Prix du Disque Académie Charles Cros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a38df9b68035e0aff6d552f9601ed92f99ece952594b3d402ae16697dd681e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRZ115702010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c31c346528cef56e5ef180d3b2cc9cf7faf6a8bccf9fcf6d9420cdd358d1ff. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRZ116302770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ae40f09744b2eb1d0558d7fb6621b2ce650372f98ccf40ae39d52c1a4d9214. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USRDG0210644.