Bernard Labadie (born March 27, 1963) is a Canadian conductor. Biography Labadie was born in Quebec City, Canada. He graduated from the School of Music at Laval University. During Labadie's educatio
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 0xb7e7cbf37f2816245c0b70396125f47f6b47ca8525577cceb2d17dba26e61919. 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/01fe92f8-7d5b-4bb1-bba1-d918a20550e0.json and https://artists.proofprofile.net/proofs/artist/01fe92f8-7d5b-4bb1-bba1-d918a20550e0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Classical Music for the Christmas Holiday, Vol. 1
The Nutcracker, Op. 71: Danse de la fee (Dance of the Sugar Plum Fairy)
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 0xb621bb64d2a8ba219e2f6950b867120bfdd619a982db2f1b804d3a8549c85c39. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1613247 — a six-check JSON result.
Dorian Sampler, Vol. 6 (A Dorian Banquet)
Estancia Suite, Op. 8a: IV. Malambo: Allegro - Tempo di malambo
Simón Bolívar Symphony Orchestra Of Venezuela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead40d6308a6613c5d0a3a63654169f5f5a3b6f6138c495ff61f427c29dc0d9a. 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/USKC60710220 — a six-check JSON result.
Keyboard Concerto in D Major, Hob. XVIII:11: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1065168def61c0ea0924110e517f2504be443628f7e24a0e8ba91ee083b03294. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GBAJY1392501 — a six-check JSON result.
Keyboard Concerto in D Major, Hob. XVIII:11: II. Un poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af724937159507cc47f0f83a02460fec65e12dfc54703ca3cbbb0eadce8fe64. 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/GBAJY1392502 — a six-check JSON result.
Keyboard Concerto in D Major, Hob. XVIII:11: III. Rondo all'ungarese. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabb09f63876246456de3d6d5ff9506dc413aeeee6fb846ba8b019be98f9f95b. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY1392503 — a six-check JSON result.
Flute Quartet in A Major, K. 298: II. Minuetto - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f7e014b5716c7d5d776264eb6c2f1ac05bab468ded3aebd827df9a480645ae. 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/NLY331903126 — a six-check JSON result.
Bach, JS: Keyboard Concerto in D Minor, BWV 974: II. Adagio (After Marcello's Oboe Concerto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091946b3997a0a4a54019bc0b971920e9cedd91ed6c5f779cb0460326a81a843. 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/GBAYC1102578 — a six-check JSON result.
Keyboard Concerto in D Minor, BWV 974: II. Adagio
Keyboard Concerto in D Minor, BWV. 974: II Adagio
Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: II. Un poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2164102de9ce4043d1848039788b6208d39caf23af5098d74652799329d31d9. 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/GBAYC1402075 — a six-check JSON result.
Concerto in C Major for Flute and Harp, K. 299: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02e35c90253837b9707e4609f1dfaef607fa9ed416f8d4384b4debaf0c884bd. 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/NLY331410371 — a six-check JSON result.
Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: III. Rondo all'ungarese
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe2d6197d81b51a15576ba7c28920dfd15e03cf0c5c737abe3c20ed061b7f5f. 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/GBAYC1402076 — a six-check JSON result.
Mitridate, Re di Ponto, K. 87: Venga pur, minacci e frema
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac4b6a7995c87fba4029869776f7af8098ff75379a9fd8fbb10f6a4202cf80d. 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/FRZ131030010 — a six-check JSON result.
Mozart: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": III. Rondeau. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e315b6f30ca84979e66d1294db3bd9bd188ec8851700b69463210e59c9910f. 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/GBAYC1402071 — a six-check JSON result.