Isabelle Druet (born 19 September 1979) is a French operatic coloratura mezzo-soprano who has performed internationally. She began her career as an actress and co-founded a theatre company, La Carotte
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 0xe453548519655dcf8ed9eb08255a578f0d16996ae1660029d0929b27f6d6dbe1. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32404504-26fe-4e3b-8109-8c61de03a73f.json and https://artists.proofprofile.net/proofs/artist/32404504-26fe-4e3b-8109-8c61de03a73f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Antar (After N. Rimsky-Korsakov): No. 7, Allegretto
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 0x102884b17043d98ee2e0a9243c68ecf06bcfa3ec7785772bd52179ae2f1c392e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191510607 — a six-check JSON result.
Ravel: L'heure espagnole, M. 52 & Don Quichotte à Dulcinée, M. 84
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9591b02e6695161592dca08dc72f3e4e187a4abdc64b29b4f659e2f9f0a8a2e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508501 — a six-check JSON result.
L'heure espagnole, M. 52: Señor Torquemada, horloger de Tolède?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a183e58242bfb47b242b75f1b0d56311c468393da0b5b0b23bd87795bd857. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508502 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b59592581bf4791d1d6a92bd2e58b2b397d2f7b5d028e89a04888de8ee7faa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508503 — a six-check JSON result.
L'heure espagnole, M. 52: Il reste, voilà bien ma chance!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3537b84b939339bcc6ae71ec225ba3fcfdc8a4805dd5bc40b1a16362f8bdcd8d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508504 — a six-check JSON result.
L'heure espagnole, M. 52: Il était temps, voici Gonzalve!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4851955ffe03874b5199bc044b7fe7e414d4a1d399611eca43d47178ba0e0a49. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508505 — a six-check JSON result.
Don Quichotte à Dulcinée, M. 84: No. 1, Chanson romanesque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7af269c5bf490c6a30a7e10a574b218eeb00f27bc9d748eac22d0c00223a6d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508523 — a six-check JSON result.
Don Quichotte à Dulcinée, M. 84: No. 2, Chanson épique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa834ab2a726405a9125ca65da4d597a5e23ccfaa663f6cb2e885f6427c542488. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508524 — a six-check JSON result.
Don Quichotte à Dulcinée, M. 84: No. 3, Chanson à boire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1070bec11fdaf59bb7022c3555f4b3e0d02aba4745174144bc8a541c8a8fc990. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191508525 — a six-check JSON result.
Télémaque & Calypso, Prologue: Ouverture (I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fda20785437291d6c0b634298e517fa060ed70c41d4275169b4cea8456b38b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR522412801 — a six-check JSON result.
Télémaque & Calypso, Prologue Scene 1: Descendez, régnez sur la terre (Les vertus, les muses et les arts)
Les Chantres du Centre de Musique Baroque de Versailles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb713d99e8323f8ef4a5775b49d07c138f2ddd6e5984b52a4e43f194be647383. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR522412805 — a six-check JSON result.
L'Europe Galante, Prologue: L'Europe Galante, Prologue: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cadb5c03e223bc1f892b0e8665c9e3035cfa54834a7a322d2b439573e63494. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11810112 — a six-check JSON result.
L'Europe Galante, Prologue: L'Europe Galante, Prologue: Frappez, frappez, ne vous lassez jamais (Vénus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a635a4980450da0d1e6998af5fe231b6a40fda43fc7574193be5af0e8144f9. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11810113 — a six-check JSON result.
L'Europe Galante, Prologue: L'Europe Galante, Prologue: Premier et Second Menuet. Souffrez que l’Amour vous blesse (Deux Grâces)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99a54be30e1e2dbe3660c082c170037071c4cf4d15ba8b2d0af137e25a801e9. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11810115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef2e8ccf58115939e8dbb3398a46bcc681d536df2e9fe18891a2ec1d84ec5a8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV731100518 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b91c660d4f1fc43e8050e4815a348a91efd32fb6b351ce746b0dce677fa968. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRV731100521 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f332cf0d6ee8d02d480b1b6df734d5de036ed86e42dc8c989a2e31b4c709120. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0V61001321 — a six-check JSON result.
Miserere mei Deus, C.116: II. Quoniam iniquitatem meam
Clérambault: Miserere - Couperin: Leçons de ténèbres (Recorded at La Chapelle Royale du Château de Versailles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941bdf2888594e1b1799e8cf5eeb2efa6db002889f4ce0f15d8088d00fe5e699. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1395702 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 2: Totor ! (Concepción, Torquemada, Ramiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7964e45fa9f8fa6ff747538be85c7c52373bc4091375017428635bd8eed245d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303003 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 3: II reste, voilà bien ma chance ! (Concepción, Ramiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625a7e2942f308443938f181ffd4421adb7a295926812dd5e70521cae9b7dbbb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303004 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 5: C'est fait, l'horloge est à sa place (Ramiro, Concepción, Gonzalve)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b92f458ea856a9ba722d248ebdf474b35d90960b453b4ac889f772e898428. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303006 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 7: Salut à la belle horlogère ! (Iñigo, Concepción)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aab48596175167b5ced7f49a182e8257b2516436d0ef2e70a61f891035513e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303008 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 8: Voilà !.. Et maintenant à l'autre ! (Ramiro, Concepción, Iñigo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec2371b5235fe31a29c9e55a679f188afd1329f972ac13601332119a6de73a3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303009 — a six-check JSON result.
Miserere mei Deus, C.116: III. Asperges me hyssopo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec54c9168e4572bb0cb90596ed0dc20b9853c998d7aae9924e5a0bfe1096222. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1395703 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 11: Monsieur, ah ! Monsieur ! (Concepción, Ramiro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adcb95a380fe38fea11b935b4a560a62a9a63cbace887d0ae2d1bbf90f5c6bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303012 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 12: Enfin, il part ! (Iñigo, Concepción)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1379cd67cbf33ac77106e93e1233db823c6b1ca98119350e0a80a202ce13c9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303013 — a six-check JSON result.
L'Heure espagnole, M. 52, Scene 13: Voilà l'objet ! (Ramiro, Concepción, Iñigo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bca777f868d5336ec5b86ad04d30eb6a6f850301e4d12d505f4d3046a3c0d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR4KC2303014 — a six-check JSON result.