Charles Richard-Hamelin (born 17 July 1989) is a Canadian concert pianist from Joliette, Québec."Rapturous Chopin with Charles Richard-Hamelin and I Musici de Montréal". Ottawa Sun, Natasha Gauthier,
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 0xa184c4f5912248a274a133f2cf82a62195aa144dc2d240066553ffe4d969fcb1. 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/6b1e26ef-22ed-429f-a893-72cabd2ea49f.json and https://artists.proofprofile.net/proofs/artist/6b1e26ef-22ed-429f-a893-72cabd2ea49f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Violin Sonata No. 1 in A Minor, Op. 105: I. Mit leidenschaftlichem ausdruck
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
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Beethoven: Violin Sonatas Nos. 4, 9 & 10
Violin Sonata No. 4 in A Minor, Op. 23: I. Presto
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Violin Sonata No. 9 in A Major, Op. 47 “Kreutzer”: I. Adagio sostenuto – Presto
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Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
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Violin Sonata No. 10 in G Major, Op. 96: II. Adagio espressivo
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Beethoven: Violin Sonatas Nos. 1, 2, 3 & 5
Violin Sonata No. 6 in A Major, Op. 30, No. 1: I. Allegro
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Violin Sonata No. 6 in A Major, Op. 30, No. 1: II. Adagio, molto espressivo
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Violin Sonata No. 6 in A Major, Op. 30, No. 1: III. Allegretto con variazioni
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Violin Sonata No. 7 in C Minor, Op. 30, No. 2: I. Allegro con brio
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Violin Sonata No. 7 in C Minor, Op. 30, No. 2: II. Adagio cantabile
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Violin Sonata No. 7 in C Minor, Op. 30, No. 2: III. Scherzo: Allegro
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Violin Sonata No. 7 in C Minor, Op. 30, No. 2: IV. Finale: Allegro - Presto
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Violin Sonata No. 8 in G Major, Op. 30, No. 3: I. Allegro assai
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Violin Sonata No. 8 in G Major, Op. 30, No. 3: II. Tempo di menuetto, ma molto moderato e grazioso
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Beethoven: Violin Sonata No. 9 in A Major, Op. 47 “Kreutzer”: III. Presto
Violin Sonata No. 9 in A Major, Op. 47 “Kreutzer”: III. Presto
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Piano Concerto No. 20 in D Minor, K. 466: I. Allegro
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Piano Concerto No. 20 in D Minor, K. 466: II. Romance
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Piano Concerto No. 23 in A Major, K. 488: I. Allegro
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Piano Concerto No. 23 in A Major, K. 488: III. Allegro assai
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Chopin: 24 Préludes, Op. 28 - Andante Spianato & Grande Polonaise Brillante, Op. 22
24 Préludes, Op. 28, No. 1 in C Major - Agitato
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24 Préludes, Op. 28, No. 2 in A Minor - Lento
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24 Préludes, Op. 28, No. 3 in G Major - Vivace
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24 Préludes, Op. 28, No. 4 in E Minor - Largo
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24 Préludes, Op. 28, No. 5 in D Major - Allegro molto
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24 Préludes, Op. 28, No. 6 in B Minor - Lento assai
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24 Préludes, Op. 28, No. 7 in A Major - Andantino
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24 Préludes, Op. 28, No. 8 in F-Sharp Minor - Molto agitato
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24 Préludes, Op. 28, No. 9 in E Major - Largo
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24 Préludes, Op. 28, No. 10 in C-Sharp Minor - Allegro molto
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24 Préludes, Op. 28, No. 11 in B Major - Vivace
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24 Préludes, Op. 28, No. 12 in G-Sharp Minor - Presto
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24 Préludes, Op. 28, No. 13 in F-Sharp Major - Lento
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24 Préludes, Op. 28, No. 14 in E-Flat Minor - Allegro
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24 Préludes, Op. 28, No. 16 in B-Flat Minor - Presto con fuoco
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24 Préludes, Op. 28, No. 17 in A-Flat Major - Allegretto
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24 Préludes, Op. 28, No. 18 in F Minor - Allegro molto
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24 Préludes, Op. 28, No. 19 in E-Flat Major - Vivace
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24 Préludes, Op. 28, No. 20 in C Minor - Largo
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24 Préludes, Op. 28, No. 21 in B-Flat Major - Cantabile
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24 Préludes, Op. 28, No. 22 in G Minor - Molto agitato
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24 Préludes, Op. 28, No. 23 in F Major - Moderato
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24 Préludes, Op. 28, No. 24 in D Minor - Allegro appassionato
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Andante spianato et Grande polonaise brillante, Op. 22: I. Andante spianato
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Andante spianato et Grande polonaise brillante, Op. 22: II. Grande polonaise brillante
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Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro
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Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante
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Piano Concerto No. 22 in E-Flat Major, K. 482: III. Allegro
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Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
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Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto
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Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto
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Fantaisie-Impromptu in C-sharp Minor, Op. posth. 66
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Piano Concerto No. 2 in F Minor, Op. 21: I. Maestoso
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Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto
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Piano Concerto No. 2 in F Minor, Op. 21: III. Allegro vivace
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Piano Concerto No. 1 in E Minor, Op. 11: I. Allegro maestoso
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Piano Concerto No. 1 in E Minor, Op. 11: II. Romance. Larghetto
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Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace
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Nocturne No. 20 in C-Sharp Minor, Op. posth.
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Two Rondos for Piano, Op. 51: Rondo in G Major, No. 2
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Chopin: Sonata No. 3 - Polonaise-Fantaisie - Nocturnes
Sonata No. 3 in B Minor, Op. 58: I. Allegro maestoso
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Sonata No. 3 in B Minor, Op. 58: II. Scherzo: Molto vivace
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Sonata No. 3 in B Minor, Op. 58: III. Largo
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Sonata No. 3 in B Minor, Op. 58: IV. Finale: Presto non tanto; Agitato
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Polonaise-fantaisie in A-Flat Major, Op. 61
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Sonata H Minor, Nokturny, polonezy , mazurki
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Chopin: 24 Préludes, Op. 28: IV. No. 4 in E Minor - Largo
24 Préludes, Op. 28: IV. No. 4 in E Minor - Largo
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Valses Poéticos, Op. 43: Introducción. Vivace molto
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Valses Poéticos, Op. 43: II. Tempo de Vals noble
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Valses Poéticos, Op. 43: III. Tempo de Vals lento
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Valses Poéticos, Op. 43: IV. Allegro humoristico
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Valses Poéticos, Op. 43: V. Allegretto (Elegante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dd125789c7c01abbc0c6cc1685c1fbc5392e11b5a2fd9630efdd44ae7904d9. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/CALC42514906 — a six-check JSON result.
Valses Poéticos, Op. 43: VI. Quasi ad libitum (Sentimental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e2d29023483f90bf8b24ec507fd1f11587abf0f17ba43ccdd815432e95e7c2. 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/CALC42514907 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7364ac8a0cc3885cb66ec4f692ca1aafcf33851dd1b9caf4302b39070336b370. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CALC42514908 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3e338bd2f51a7f97e81e4e3637c6e4020c203ff7049a128d36b1bc9c5741fb. 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/CALC42514909 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad4a206629c98e10444701aac58331c835efefe413185bbcc174689b99e58a7. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CALC42514910 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbed1dd6dfce9e05868243eefa1c90105a2ef4ca01620c066b9af0021e9a806. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CALC42514911 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae80fe9bd0a5c3e22c88e17835f93add36c2a02969d7a39a442896ecf2c5942. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/CALC42514912 — a six-check JSON result.
Waltz in E Minor. Vivace, Op. posth. KKIVa/15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945583ddb32f5ae235b832f798194e9e775191a218ae937fb24f981420e5b390. 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/CALC42514913 — a six-check JSON result.
Waltzes, Op. 34: No. 2 in A Minor. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3ead029a3b5b3512726d919c72498864aac79183b0d77763f283f9e53ae2c7. 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/CALC42514914 — a six-check JSON result.
Waltzes, Op. 34: No. 3 in F Major. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f0e7171b3c992643f6353fba282789e4a3f66ab6836817f601d5f2519a5617. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/CALC42514915 — a six-check JSON result.
Waltzes, Op. 70: No. 2 in F Minor. Tempo giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c080d6cd1ca83196261c74192bd4d7b79b7dbc6b5f5bb54eed0595bf5c51380. 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/CALC42514916 — a six-check JSON result.
Waltzes, Op. 64: No. 1 in D-Flat Major. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0405a001bd60c2c2939654948335919d003adde1b4db60b219a578a4310ead. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CALC42514917 — a six-check JSON result.
Waltzes, Op. 64: No. 2 in C-Sharp Minor. Tempo giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce49cb6eabf7c33e328c1131cb0451ae333c6f6802e995d05511e298ef6081e. 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/CALC42514918 — a six-check JSON result.
Waltzes, Op. 64: No. 3 in A-Flat Major. Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed5c49554e1968243a63fccbf3fb5e6faff64c1f7dad807479c00e12497d8e1. 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/CALC42514919 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3902d6e002e44a4f1b6e5275815ac6b5dfab195caa14a8cc6b5997e07e155bc0. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/CALC42514920 — a six-check JSON result.
Granados: Valses Poéticos, Op. 43: I. Melodioso