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 0x9b94a0a1feb82e2fe80862c306f293c3057184fdcd6b8511aee470f6304c9957. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a43e9617-ad8d-47a8-a1c8-f18ac468c4cf.json and https://artists.proofprofile.net/proofs/artist/a43e9617-ad8d-47a8-a1c8-f18ac468c4cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Driving: 111 Pieces Of Classical Music For The Road
Piano Sonata No. 11 in A major, K331 (Third Movement - Rondo alla turca)
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 0x459fd8502e9ad43413b461446da3d4a3b9c59a9feb175b287895a780cc7e8271. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJE0602760.
Die Walküre, WWV 86B - Concert version / Act 3: The Ride Of The Valkyries
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The Nutcracker, Op. 71, Act II: No. 12, Divertissement: d. Trepak (Russian Dance)
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Eine Kleine Nachtmusik, K525 (First Movement - Allegro)
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Serenade for 13 Wind Instruments, K361, "Gran Partita" (Third Movement - Adagio)
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Horn Concerto No. 4 in E flat major, K495 (Third Movement - Rondo: Allegro vivace)
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Clarinet Concerto in A major, K622 (Second Movement - Adagio)
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Solomon, HWV 67, Act III: The Arrival of the Queen of Sheba
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Concerto For Violin And Strings in E, Op. 8, No. 1, RV 269 "La Primavera": 1. Allegro
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Suite No. 2 in B minor, BWV 1067: 7. Badinerie
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The Planets, Op. 32: 4. Jupiter, the Bringer of Jollity
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Music for the Royal Fireworks, HWV 351: IV. La Réjouissance
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The Tale Of Tsar Saltan - Arr. Grigory Feygin: The Flight Of The Bumble-Bee
Violin Ensemble of the Bolshoi Theatre, Moscow
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Music for the Royal Fireworks, HWV 351: I. Ouverture
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Water Music Suite No. 1 in F Major, HWV 348: Air
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Violin Concerto No. 2 In B Minor, Op. 7, MS.48: 3. Rondo à la clochette, 'La campanella' - Excerpt
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Concerto for Strings and Continuo in G Major, RV. 151 "Concerto alla Rustica": I. Presto
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto (Tempo impetuoso d'estate)
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Symphony No. 9 In E Minor, Op. 95, B.178 "From The New World": 4. Allegro Con Fuoco - Excerpt
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Schubert: Piano Works for Four Hands, Vol. 5
6 Grandes Marches, Op. 40, D. 819: March No. 2 in G Minor
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The Complete Piano Works of Peter Wishart
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Bloch: Baal Shem; Violin Sonatas Nos. 1 & 2
Nikolai Myaskovsky - Bohuslav Martinů: Cello Sonata No. 2 in A Minor, Op. 81 - Cello Sonata No. 2, H. 286
Pequeña Serenata Nocturna en Sol Mayor K.525 - I. Allegro
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Pequeña Serenata Nocturna en Sol Mayor K.525 - II. Romanze (Andante)
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Pequeña Serenata Nocturna en Sol Mayor K.525 - III. Menuetto (Allegretto)
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Pequeña Serenata Nocturna en Sol Mayor K.525 - IV. Rondo (Allegro)
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Concierto para trompa No.4 en Mi bemol Mayor K.495 - III. Rondo (Allegro vivace)
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Sonata para piano No.11 en La Mayor K.331 - III. Alla turca (Allegretto)
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Cosi Fan Tutte K.588 - Soave sia il vento
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Waltz from "Serenade for Strings" in C Major, Opus 48
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Elgar 50, The Very Best Of Classical Music
Dance Of The Sugar Plum Fairy from The Nutcracker Suite
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Alison Truefitt Memorial Album: Songs by Gurney, Dodgson and Runswick