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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945e9838fd5d0bed6ca4b35ff0600ab5bb03ffeb002f2b15669d6214ee3ad736. 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/3fb84b7b-53dd-4bc7-9f4b-7021d85322db.json and https://artists.proofprofile.net/proofs/artist/3fb84b7b-53dd-4bc7-9f4b-7021d85322db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
French Duets - Fauré: Dolly Suite; Ravel, Debussy, Poulenc etc.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1197200ec7c4be0894fa01b5cfebfb77c84fe9bff8ba3e92d6f33558b432f97d. 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/GBAJY2132902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e84765fc67fc057228d23a4ca995cbd4f6df5197ef29b8c747d54080d573f56. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY2132904.
Dolly Suite, Op. 56: VI. Le pas espagnol
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6 Épigraphes antiques, CD 139: I. Pour invoquer Pan, dieu du vent d'été
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Rachmaninoff: Piano Sonata No. 2; Corelli Variations – Medtner: Sonata romantica
Claude Debussy & Gabriel Fauré - Steven Osborne
Des Canyons aux étoiles..., I/51: Pt. 1, I. Le desert
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Des Canyons aux étoiles..., I/51: Pt. 1, V. Cedar Breaks et le don de crainte
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Des Canyons aux étoiles..., I/51: Pt. 2, VI. Appel interstellaire
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Des Canyons aux étoiles..., I/51: Pt. 2, VII. Bryce Canyon et les rochers rouge-orange
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12 Études, CD 143: No. 7, Pour les degrés chromatiques
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1fe75632cc6bdc98c27728328b87be592a04cb63a959ee34b1675c92867bfc. 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/GBAJY2340914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0e8e99500595cf78690c385bbfd9b694de90b30e2366722bf92e9b1cf27fe7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY2340915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9dd6825e3b51eea00d476c61341150730c7d834922155099507b2928e5c448. 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/GBAJY2239002.
2 Arabesques, CD 74: No. 1, Andantino con moto
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2 Arabesques, CD 74: No. 2, Allegretto scherzando
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828a40d984d0dae7438a5b0f6f40f7eae3f818aa8e8d939f9e427b2dc3cbb824. 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/GBAJY2239007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a12bdac3dbd2e8b18b6c0556d8489b85c5b8711ad9801ecd4567742ac29b21. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY2239009.
Suite bergamasque, CD 82: III. Clair de lune
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Les soirs illuminés par l'ardeur du charbon, CD 150
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Rachmaninoff: Piano Sonata No. 1 & Moments musicaux
Piano Sonata No. 7 in B-Flat Major, Op. 83: I. Allegro inquieto – Andantino – Allegro inquieto, come I
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Beethoven: Piano Sonatas Op. 109, 110 & 111
Rachmaninoff: Études-tableaux, Op. 33 & Op. 39
Debussy: Images; Children's Corner; Estampes etc.
Ravel: Piano Concertos; Falla: Nights in the Gardens of Spain
Beethoven: Piano Sonatas Op. 90, 101 & 106 "Hammerklavier"
Feldman: Palais de Mari – Crumb: A Little Suite for Christmas
Schubert: Impromptus, D. 935; Pieces, D. 946; Variations, D. 576
Prokofiev: Violin Sonatas Nos. 1 & 2; Five Melodies
Stravinsky: Complete Music for Piano & Orchestra
Mussorgsky: Pictures from an Exhibition; Prokofiev: Visions Fugitives & Sarcasms
Beethoven: The Complete Bagatelles for Solo Piano
7 Bagatelles, Op. 33: No. 3 in F Major. Allegretto
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7 Bagatelles, Op. 33: No. 5 in C Major. Allegro ma non troppo
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11 Bagatelles, Op. 119: No. 1 in G Minor. Allegretto
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11 Bagatelles, Op. 119: No. 3 in D Major. À l'Allemande
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11 Bagatelles, Op. 119: No. 5 in C Minor. Risoluto
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11 Bagatelles, Op. 119: No. 7 in C Major. Allegro ma non troppo
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11 Bagatelles, Op. 119: No. 8 in C Major. Moderato cantabile
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11 Bagatelles, Op. 119: No. 9 in A Minor. Vivace moderato
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6 Bagatelles, Op. 126: No. 1 in G Major. Andante con moto
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6 Bagatelles, Op. 126: No. 2 in G Minor. Allegro
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Allegretto quasi andante in G Minor, WoO 61a
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Le tombeau de Couperin, M. 68: IV. Rigaudon
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Miroirs, M. 43: IV. Alborada del gracioso
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Miroirs, M. 43: V. La vallée des cloches
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Valses nobles et sentimentales, M. 61: VI. Vif
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Schubert: Piano Duets (Fantasy in F Minor, Variations etc.)
Fantasy in F Minor for Piano 4 Hands, D. 940
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Beethoven: Moonlight, Pathétique & Waldstein Sonatas
10 Preludes, Op. 23: No. 2 in B-Flat Major. Maestoso
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10 Preludes, Op. 23: No. 4 in D Major. Andante cantabile
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10 Preludes, Op. 23: No. 5 in G Minor. Alla marcia
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10 Preludes, Op. 23: No. 6 in E-Flat Major. Andante
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10 Preludes, Op. 23: No. 8 in A-Flat Major. Allegro vivace
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Britten: Piano Concerto; Diversions; Young Apollo
Piano Concerto in D Major, Op. 13: II. Waltz. Allegretto
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Piano Concerto in D Major, Op. 13: III. Impromptu. Andante lento
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Piano Concerto in D Major, Op. 13: IV. March. Allegro moderato – sempre alla marcia
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Diversions for Piano Left Hand & Orchestra, Op. 21: Var. 2. Romance. Allegretto mosso
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Tippett: Piano Concerto; Piano Sonatas Nos. 1-4 etc.
Préludes, Book 1, CD 125: I. Danseuses de Delphes
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Préludes, Book 1, CD 125: V. Les collines d'Anacapri
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Préludes, Book 1, CD 125: VIII. La fille aux cheveux de lin
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Shostakovich & Schnittke: Cello Sonatas etc.
Messiaen: Visions de l'Amen & Other Piano Works
Liszt: Harmonies poétiques et religieuses
48 Esquisses, Op. 63, Book 1: No. 1, La vision
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48 Esquisses, Op. 63, Book 1: No. 2, Le staccatissimo
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48 Esquisses, Op. 63, Book 1: No. 3, Le legatissimo
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48 Esquisses, Op. 63, Book 1: No. 5, Les initiés
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48 Esquisses, Op. 63, Book 1: No. 6, Fuguette
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48 Esquisses, Op. 63, Book 1: No. 9, Confidence
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48 Esquisses, Op. 63, Book 2: No. 14, Duettino
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48 Esquisses, Op. 63, Book 2: No. 19, Grâces
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48 Esquisses, Op. 63, Book 2: No. 21, Morituri te salutant
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48 Esquisses, Op. 63, Book 2: No. 24, Contredanse
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48 Esquisses, Op. 63, Book 3: No. 26, Petit air
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48 Esquisses, Op. 63, Book 3: No. 27, Rigaudon
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48 Esquisses, Op. 63, Book 3: No. 29, Délire
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48 Esquisses, Op. 63, Book 3: No. 34, Odi profanum vulgus et arceo
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48 Esquisses, Op. 63, Book 4: No. 40, Attendez-moi sous l'orme
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48 Esquisses, Op. 63, Book 4: No. 41, Les enharmoniques
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48 Esquisses, Op. 63, Book 4: No. 43, Notturnino – Innamorato
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48 Esquisses, Op. 63, Book 4: No. 47, Scherzetto
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48 Esquisses, Op. 63, Book 4: No. 48, En songe
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Messiaen: Vingt Regards sur l'Enfant-Jésus
Vingt regards sur l'Enfant-Jésus: I. Regard du Père
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Vingt regards sur l'Enfant-Jésus: IV. Regard de la Vierge
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Vingt regards sur l'Enfant-Jésus: VI. Par Lui tout à été fait
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Kapustin: Piano Sonatas Nos. 1 & 2; 24 Preludes in Jazz Style
Sonata No. 1, Op. 39 "Sonata-Fantasy": II. Largo
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Sonata No. 1, Op. 39 "Sonata-Fantasy": IV. Allegro molto
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24 Preludes in Jazz Style, Op. 53: Prelude No. 7 in A Major
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24 Preludes in Jazz Style, Op. 53: Prelude No. 15 in D-Flat Major
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24 Preludes in Jazz Style, Op. 53: Prelude No. 19 in E-Flat Major
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24 Preludes in Jazz Style, Op. 53: Prelude No. 5 in D Major
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24 Preludes in Jazz Style, Op. 53: Prelude No. 18 in F Minor
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24 Preludes in Jazz Style, Op. 53: Prelude No. 10 in C-Sharp Minor
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Sonata No. 2, Op. 54: II. Scherzo. Allegro assai
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Ravel: Valses Nobles Et Sentimentales, Miroirs, Le tombeau de Couperin
Mackenzie & Tovey: Piano Concertos (Hyperion Romantic Piano Concerto 19)
Debussy: Pour le piano, CD 95: II. Sarabande
Academy of Classical: From Baroque to Beyond
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