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 0x66c73673011ed801c0608ffe859947eb3c5c1c464edc29a9c531b8cf94911258. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38750568-9203-4b3f-9399-4b71c0341a62.json and https://artists.proofprofile.net/proofs/artist/38750568-9203-4b3f-9399-4b71c0341a62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
Brandenburg Concerto No. 4 in G, BWV 1049: 2. Andante
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
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Orchestral Suite No. 3 in D Major, BWV 1068: III. Gavotte I-II
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Orchestral Suite No. 3 in D Major, BWV 1068: V. Gigue
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Brandenburg Concerto No. 3 in G, BWV 1048: 1. (without tempo indication)
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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
Brandenburg Concerto No. 3 in G, BWV 1048: 2.Allegro
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Bach, J.S.: Brandenburg Concerto No.1 BWV 1046; No.5 BWV 1050 & No.6 BWV 1051
Cello Concerto in C Major, RV 398: 2. Largo
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Das italienische Settecento: Serie A. Das Konzert (Mono Version)
Bach, Vivaldi, Handel, Corelli, Marcello: Concerto Grosso (Famous Baroque Concertos)
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Fanny Hensel-Mendhelssohn, Schubert & Crieg: Klaviertrios
Mendelssohn: The Works for Cello & Piano
Das italienische Settecento: Serie A. Das Konzert (Stereo Version)
Bach To Work - Classical Music for Concentration and Studying Vol. 1
Prelude in C Major (WTK, Book I, No. 1), BWV 846
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Concerto for 2 Violins, Strings and Continuo in D Minor, BWV 1043: I. Vivace
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Brandenburg Concerto No 4 in G Major, BWV 1049: Presto
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Partita for Solo Violin No. 2 in D Minor, BWV 1004: 2. Corrente
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Partita for Solo Violin No. 2 in D Minor, BWV 1004: 5. Ciaccona
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Classical Music for Concentration and Studying
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French Concertos: Devienne / Saint-Saëns / Ibert
Classical Favorites (Composed By: Antonio Vivaldi)
Realms of Gold: The Recorded Legacy of American Concert Pianist William Corbet-Jones, Vol. 1 & 2
Vivaldi (Classical Masterpieces - Digitally Remastered)
Chopin & Grieg: Sonatas for Cello & Piano
The Art Of Irmgard Seefried - Volume 11: Cantatas & Oratorios
Johannes Brahms: The Two Sonatas for Cello & Piano op. 38 & op. 99
Mandolin Concerto In C, RV 425 - Transcr. for two guitars A. Lagoya: 3. Allegro
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"Concerto Barocco" - Vivaldi, Bach & Handel
Oboe Concerto No. 1 in B-Flat Major, HWV 301: I. Adagio
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L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: I. Allegro
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L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso
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L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: III. Allegro
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Cello Concerto in C Major, RV 398: I. Allegro
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Cello Concerto in C Major, RV 398: II. Largo
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Cello Concerto in C Major, RV 398: III. Allegro
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Flute Concerto in F Major, RV 434, Op. 10 No. 5: II. Largo e cantabile
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Flute Concerto in F Major, RV 434, Op. 10 No. 5: III. Allegro
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Concerto a due cori No. 2, HWV 333: 1. Pomposo
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J.S. Bach: Cantata BWV 202; Respighi: Il tramonto; Mozart: Divertimento K. 138, Così fan tutte (arias)
Cello Sonata in E Minor, Op. 14 No. 5, RV 40: I. Largo
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Cello Sonata in A Minor, Op. 14 No. 3, RV 43: II. Allegro
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Cello Sonata in B-Flat Major, Op. 14 No. 1, RV 47: I. Largo
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Cello Sonata in B-Flat Major, Op. 14 No. 1, RV 47: II. Allegro
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Cello Sonata in E Minor, Op. 14 No. 5, RV 40: II. Allegro
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Cello Sonata in A Minor, Op. 14 No. 3, RV 43: I. Largo
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"Baroque Festival" - Festival Strings Lucerne
Concerto grosso in D, Op. 6, No. 5: 1. (Larghetto, e staccato)
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Concerto grosso in D, Op. 6, No. 5: 5. Allegro
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Concerto grosso in D, Op. 6, No. 5: 6. Menuet (un poco larghetto)
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Concerto grosso in D, Op. 3/1, RV 549: 2. Largo e spiccato
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Concerto in A Major For Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: III. Allegro
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 1. Large
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 3. Lent et expressif (alla siciliana)
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Vincent d'Indy: 2. Allègre
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Brandenburg Concerto No. 1 in F, BWV 1046: 1. (Allegro)
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Brandenburg Concerto No. 1 in F, BWV 1046: 2. Adagio
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Brandenburg Concerto No. 1 in F, BWV 1046: 3. Allegro
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Symphony No. XX in E minor: 3. Allegro assai
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro
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Violin Concerto in F Major, Op. 8, No. 3, RV 293 "L'autunno": II. Adagio molto. Ubriachi dormienti
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Violin Concerto in F Minor, Op. 8, No. 4, RV 297 "L'inverno": II. Largo
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Pièces de Clavecin en Concert / Troisième Concert: 1. La La Poplinière - Rondement
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Pièces de Clavecin en Concert / Troisième Concert: 2. La Timide (Rondeau 1 et 2) - Gracieux
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Pièces de Clavecin en Concert / Troisième Concert: 3. 1er Et 2ème Tambourins - Vif
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Don Quichotte - Suite: 2. Le Reveil de Quixotte
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