Claire Keim (born Claire Lefebvre 8 July 1975) is a French actress and singer. Biography Keim was born in Senlis, Oise to an architect father and a dentist mother. She is in a relationship with Frenc
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 0x01af87b3e730970e6e019c18c6bb475f66c307cf10dd1561d58c8e4ea8a8467e. 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/13b14aaa-57e0-4024-a1cf-d738bc379981.json and https://artists.proofprofile.net/proofs/artist/13b14aaa-57e0-4024-a1cf-d738bc379981.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x51c6c761995184a6809a6c6b32b8c01fbdc9c1e7289000e9d5efe62257cd38c3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRUM70903199.
Promenons-nous dans les bois - Les plus belles comptines d'Okoo
Les plus belles comptines d'Okoo (Edition Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ec5502c15bd8f90012cb7f9117e409f4f49c7329bcdb0e9d996e89c09f20b2. 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/FR9W11926369.
L'araignée Gypsie - Les plus belles comptines d'Okoo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608b358fddd2fc76b08a7ab6d005f04154580cdc8d4d42c69a0098db1a6bbb80. 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/FR9W11926371.
Petit escargot (feat. Tété) - Les plus belles comptines d'Okoo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9958b93492a9bde0002ccede3cd93ea36e6931f70881b8f28cf9e6ff11b63741. 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/FR9W11926364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3458f620a4b117462444ce363bf771d975ed2cad6fd7d9f85265af634ef90f9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRZ030100680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca585c21608bca8b047b0ccbf3544b7a3a833f69b069c50692753f778a6cfab. 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/FRUM71502293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfa0e6bae53f20954a759a39d92b780cbaf1ead7a4a20e34f00881c01fe073e. 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/FR9W12015034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3458f620a4b117462444ce363bf771d975ed2cad6fd7d9f85265af634ef90f9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ030100680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811fca2a5e6e145cb9308d83c2c64071d458546e669a24e6a6a3d0e7aa9aa5a2. 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/FRZ051500430.
Les cœurs brûlés / Les yeux d'Hélène (Bande originale des séries télévisées de Jean Sagols)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d83080d648bbcbe3194553eb912139a8bb95a8c320b7346efba55e2912a1b5. 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/NLF360900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd488f68bc66d7a221640977533af91d5855f66e6e3655337f72317b691efcd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ051800534.
Les amoureux (with Claire Keim) - à huit violoncelles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99368c009cf73d2c2ee76803260cf87268dd693c1ac5663048b2be1c045c98f6. 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/FRZ051800544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc82d6db22f50614ad6212bb29f7d7b2374c84249895923a617f393a419b1f8b. 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/FRZ081300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66dd41c4097d748663af07bd06545de4e075292f52c3a003d7a74e66034218f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FRUM72401781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66dd41c4097d748663af07bd06545de4e075292f52c3a003d7a74e66034218f. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/FRUM72401781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae2e1bdb5ec598b64ec855593d9bfb6e65f8396f702ab4b44e54877ee2555b2. 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/FRUM72401958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e8be91bda79a906e137cefd767d0c1be24519e7211a28f9dc1dc416071b0c1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRUM71102335.