Anne Bénédicte Jeanne Queffélec (born 17 January 1948) is a French classical pianist. Biography Born in Paris in 1948, Queffélec was the daughter of writer Henri Queffélec. Her brother Yann followe
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 0x12cf433cbd9564df1e99b26997ec7c12b5d5ca0b21fc2bb02eaf38bfcb2954c7. 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/b7f7f3ed-10e1-419e-a4c0-f88697e3b9a6.json and https://artists.proofprofile.net/proofs/artist/b7f7f3ed-10e1-419e-a4c0-f88697e3b9a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach: Concertos pour 3 et 4 pianos, BWV 1063, 1064 & 1065
33ème Festival International de Piano de La Roque d'Anthéron
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 0xe5fcf485d71c1b0fdbb004c9e77910d09ba59e7d0d3fb75072b43f249a6bcdd8. 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/FRU621121513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c312a3e1cccd4117c67ae36488062e4be9a37be83da1204470c0ed250b09be. 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/GBAYC8800397.
Three Gymnopedies: I. Lent et douloureux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980751d3f205c89964eb5df95933420c37d35562e101863e660f89643a41fdc6. 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/GBAYC8800957.
Klaviermusik 50 Meisterwerke – Klassik die man hören muss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ccc9a104342db3a1b87948e69dac54602b6eab78d650e37e461fc71bc25e71. 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/GBAYC8803526.
Klassik 100 Meisterwerke: Klassik die man gehört haben muss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980751d3f205c89964eb5df95933420c37d35562e101863e660f89643a41fdc6. 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/GBAYC8800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4ecb15752ff478ef880be16a47d8a5deea5a24d274c9addeeb5b29691c222. 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/GBAYC9000556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c312a3e1cccd4117c67ae36488062e4be9a37be83da1204470c0ed250b09be. 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/GBAYC8800397.
Gaspard de la nuit, M. 55: I. Ondine (Lent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6220f94ea932fb6f087c1aa3b5ca6896e81217e9fbb0b1f4dbc3ee8a84b7fceb. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBAYC9200282.
Dutilleux: Bergerie (Extrait du "Jardin d'enfants")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a9d61ff2342fa0d0e5761cea2a5c991166f5d7bf80d474343938c56a3b9ab9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAYC9603231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c312a3e1cccd4117c67ae36488062e4be9a37be83da1204470c0ed250b09be. 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/GBAYC8800397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66026baeb44a41b31ea1fdc265f7ce2dc33a7443298485f82161621b33b1b7b5. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBAYC8800400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980751d3f205c89964eb5df95933420c37d35562e101863e660f89643a41fdc6. 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/GBAYC8800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0362025fce133d477ed47f12f24d38a43ca95276338a5a9a46a176d663060a. 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/GBAYC9603232.
Satie: 3 Gymnopédies: No. 3, Lent et grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902a40ce2b9125e8ece5604600ee465b827faff598a9e13bb86a9b78b0526b91. 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/GBAYC8800959.
Beethoven: Triple Concerto in C Major, Op. 56: II. Largo
Orchestre National de l'Opéra de Monte-Carlo
Boléro - From Ravel to Fauré and Chabrier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9acb5974a2a4cffe1269a1190add7b8b6ba8fb5b820be1a358afe87c36a778. 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/FRZ201805063.
Préludes pour piano: I. D'ombre et de silence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b34661a7a0dd5a67794b58ef8309cebefd976c68565fef5fff4a3a80fcee661. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAYC9602722.