Jakie Quartz (born Jacqueline Cuchet, 31 July 1955) is a French singer. Her biggest hit singles in France were "Mise au point" (1983, covered by Leslie in 2007 and Quentin Mosimann in 2008), "Vivre ai
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 0x010917d052636fcdcff1b8e94c3773faeb9f3cf7be53cf5eee55bdc7beb678f1. 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/99e5a2a3-2315-4ac3-8346-7d5a2c2a7ac5.json and https://artists.proofprofile.net/proofs/artist/99e5a2a3-2315-4ac3-8346-7d5a2c2a7ac5.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 0xe0160adbc21327f61d7d2d9b7fcea83784b0b625139625b0690128a154069f36. 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/FR2MQ8300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07e85d62b8194c45f6068681df909b3f596fb9edf5bc84e941a179221074fef. 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/FR2MQ8400050.
Best of Jakie Quartz (Le meilleur des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda96b0a5daa16a69b55ceb8b24509a74eb5bbc5f7fac2a592286bfc16ed39dd6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR2MQ8700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2df9ee51fad88a4b5dd8f86f2cf8efab9cd2e7ae2ce6df6e9f55d61bcece22b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/FR2MQ8600130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1853f6073981e99fc119bfdfe51cf05acefb0edeb5d0703b24aab0b3c67505ad. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR2MQ8300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0160adbc21327f61d7d2d9b7fcea83784b0b625139625b0690128a154069f36. 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/FR2MQ8300060.
Soleil 80, vol. 2 (Toute la chaleur des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda96b0a5daa16a69b55ceb8b24509a74eb5bbc5f7fac2a592286bfc16ed39dd6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR2MQ8700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786b22df2739e81223b15a510d5075ffaebb5fc329465aaf744dd5e666b5d44e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FR2MQ8600070.
Maxis 80, vol. 11/25 (Les meilleurs maxi 45T des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1442486d64cf7d85b8a41de10646a0f22d9add9d979360d6103d0b3486558107. 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/FR2MQ8700050.
Femmes de mes années 80 (French Ladies of the 80's)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0160adbc21327f61d7d2d9b7fcea83784b0b625139625b0690128a154069f36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2MQ8300060.
Maxis 80 : Programme 3/25 (Les meilleurs maxi 45T des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e9068894be38553e2eb403e8dd7bf9b608e45b689dbe4f9af8e0f53f23099e. 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/FR2MQ8700020.
Maxis 80 : Programme 1/25 (Les meilleurs maxi 45T des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f807ef482af082c7a614226c96cc3c3be85e622165a1a447b01fd96d7b2ea13. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/FR2MQ8600090.