1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x536b984d2a739124865bd43d527fc499e5f30a3ee402dc2609f5d0a0e49bc03f. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3443292a-226e-4750-9b40-6a37a622a55e.json and https://artists.proofprofile.net/proofs/artist/3443292a-226e-4750-9b40-6a37a622a55e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 1 in C Major, Bwv 870
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 11 in F Major, Bwv 880
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 19 in A Major, Bwv 888
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 2 in C Minor, Bwv 871
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 12 in F Minor, Bwv 881
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 20 in A Minor, Bwv 889
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 3 in C-sharp Major, Bwv 872
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 13 in F-sharp Major, Bwv 882
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 21 in B-Flat Major, Bwv 890
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 4 in C-sharp Minor, Bwv 873
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 14 in F-sharp Minor, Bwv 883
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 22 in B-Flat Minor, Bwv 891
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 5 in D Major, Bwv 874
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 15 in G Major, Bwv 884
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 23 in B Major, Bwv 892
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 6 in D Minor, Bwv 875
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 16 in G Minor, Bwv 885
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 24 in B Minor, Bwv 893
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 7 in E-Flat Major, Bwv 876
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 17 in A-Flat Major, Bwv 886
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 8 in D-sharp Minor, Bwv 877
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 18 in G-sharp Minor, Bwv 887
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 9 in E Major, Bwv 878
The Well-Tempered Clavier, Book 2, BWV 870-893: No. 10 in E Minor, Bwv 879
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 1 in C Major, Bwv 846
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 15 in G Major, Bwv 860
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 2 in C Minor, Bwv 847
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 16 in G Minor, Bwv 861
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 3 in C-sharp Major, Bwv 848
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 17 in A-Flat Major, Bwv 862
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 4 in C-sharp Minor, Bwv 849
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 18 in G-sharp Minor, Bwv 863
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 5 in D Major, Bwv 850
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 19 in A Major, Bwv 864
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 6 in D Minor, Bwv 851
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 20 in A Minor, Bwv 865
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 7 in E-Flat Major, Bwv 852
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 21 in B-Flat Major, Bwv 866
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 8 in E-Flat Minor/D-sharp Minor, Bwv 853
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 22 in B-Flat Minor, Bwv 867
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 9 in E Major, Bwv 854
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 23 in B Major, Bwv 868
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 10 in E Minor, Bwv 855
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 24 in B Minor, Bwv 869
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 11 in F Major, Bwv 856
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 12 in F Minor, Bwv 857
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 13 in F-sharp Major, Bwv 858
The Well-tempered Clavier, Book 1, Bwv 846-869: No. 14 in F-sharp Minor, Bwv 859
「グリーンスリーヴス」による幻想曲(室内アンサンブル編)
ラファエラ・ダンクザークミュラー
スコットランド民謡によるグラウンド
グラウンドによるディヴィジョン
アンヌ・ダニカン・フィリドール
リコーダー・ソナタ ニ短調: Iv. Les note egale et detachez
Greensleeves (Arr. For chamber ensemble)
Trio Sonata in G Minor, Z. 780: I. Adagio (canzona)
Trio Sonata in G Minor, Z. 780: II. Allegro
Trio Sonata in G Minor, Z. 780: III. Largo
Trio Sonata in G Minor, Z. 780: IV. Vivace
For Several Friends, Suite No. 4 in E Minor: I. Pavan
For Several Friends, Suite No. 4 in E Minor: IV. Ayre
For Several Friends, Suite No. 4 in E Minor: VI. Jigg
Recorder Sonata in D Minor: I. Lentement
Recorder Sonata in D Minor: III. Courante
リコーダー・ソナタ ニ短調: IV. Les note egale et detachez
J. S. Bach: Werke für Violine und Cembalo Vol. 5
Sonate II für Violine und Cembalo A-dur, BWV 1015: I. (dolce)
Sonate II für Violine und Cembalo A-dur, BWV 1015: II. Allegro
Sonate F-Dur, BWV 1022: II. Allegro e presto
Sonate II für Violine und Cembalo A-dur, BWV 1015: III. Andante un poco
Sonate II für Violine und Cembalo A-dur, BWV 1015: IV. Presto
Sonate II für Violine Solo a-Moll, BWV 1003: I. Grave
Sonate II für Violine Solo a-Moll, BWV 1003: II. Fuga
Sonate III für Violine Solo, BWV 1005: II: Fuga （Arr. Naoya Otsuka, G-Dur）
Sonate II für Violine Solo a-Moll, BWV 1003: III.Andante
Sonate V für Violine und Cembalo f-Moll, BWV 1018: I. (Lamento)
Sonate II für Violine Solo a-Moll, BWV 1003: IV.Allegro
Sonate V für Violine und Cembalo f-Moll, BWV 1018: II. Allegro
Sonate V für Violine und Cembalo f-Moll, BWV 1018: III. Adagio
Sonate V für Violine und Cembalo f-Moll, BWV 1018: IV. Vivace
Partita für Violine Solo II d-Moll, BWV 1004: I. Allemanda
Partita für Violine Solo II d-Moll, BWV 1004: II. Corrente
Partita für Violine Solo II d-Moll, BWV 1004: III. Sarabanda
Partita für Violine Solo II d-Moll, BWV 1004: IV. Giga
Partita für Violine Solo II d-Moll, BWV 1004: V. Ciaccona
J. S. Bach: Werke für Violine und Cembalo Vol. 4
Sonate I für Violine und Cembalo h-Moll, BWV 1014: I. Adagio
Sonate I für Violine und Cembalo h-Moll, BWV 1014: II. Allegro
Sonate I für Violine und Cembalo h-Moll, BWV 1014: III. Andante
Sonate I für Violine und Cembalo h-Moll, BWV 1014: IV.Allegro
Partita I für Violine Solo h-Moll, BWV 1002: I. Allemanda
Partita I für Violine Solo h-Moll, BWV 1002: II. Double
Partita I für Violine Solo h-Moll, BWV 1002: III. Corrente
Partita I für Violine Solo h-Moll, BWV 1002: IV. Double
Partita I für Violine Solo h-Moll, BWV 1002: V. Sarabande
Partita I für Violine Solo h-Moll, BWV 1002: VI. Double
Partita I für Violine Solo h-Moll, BWV 1002: VII. Tempo di Borea
Partita I für Violine Solo h-Moll, BWV 1002: VIII. Double
Suite E-Dur, BWV 1006a: III. Gavotte en Rondeau
Suite E-Dur, BWV 1006a: IV. Menuet I - Menuet II
J. S. Bach: Werke für Violine und Cembalo Vol. 3
Sonate III für Violine und Cembalo E-Dur, BWV 1016: I. Adagio
Sonate III für Violine und Cembalo E-Dur, BWV 1016: II. Allegro
Sonate III für Violine und Cembalo E-Dur, BWV 1016: III. Adagio ma non tanto
Sonate III für Violine und Cembalo E-Dur, BWV 1016: IV. Allegro
Partita III für Violine Solo E-Dur, BWV 1006: I. Preludio
Partita III für Violine Solo E-Dur, BWV 1006: II. Loure
Partita III für Violine Solo E-Dur, BWV 1006: III. Gavotte en Rondeau
Partita III für Violine Solo E-Dur, BWV 1006: IV. Menuet I - Menueto II
Partita III für Violine Solo E-Dur, BWV 1006: V. Bourée
Partita III für Violine Solo E-Dur, BWV 1006: VI. Gigue
Suite g-Moll, BWV 995: V. Gavotte I - Gavotte II en Rondeau
J. S. Bach: Werke für Violine und Cembalo Vol. 2
Sonate für Violine und Continuo G-Dur, BWV 1021: I. Adagio
Sonate für Violine und Continuo G-Dur, BWV 1021: II. Vivace
Sonate für Violine und Continuo G-Dur, BWV 1021: III. Largo
Sonate für Violine und Continuo G-Dur, BWV 1021: IV. Presto
Sonate für Violine Solo III C-Dur, BWV 1005: I. Adagio
Sonate für Violine Solo III C-Dur, BWV 1005: II. Fuga
Sonate für Violine Solo III C-Dur, BWV 1005: III. Largo
Sonate für Violine Solo III C-Dur, BWV 1005: IV. Allegro assai
Sonate für Violine und Cembalo c-Moll, BWV1017: I. Largo
Sonate für Violine und Cembalo c-Moll, BWV1017: II. Allegro
Sonate für Violine und Cembalo c-Moll, BWV1017: III. Adagio
Sonate für Violine und Cembalo c-Moll, BWV1017: IV. Allegro
Sonate d-Moll, BWV 964: II. Fuga Allegro
J. S. Bach: Werke für Violine und Cembalo Vol. 1
Sonate für Violine und Continuo e-Moll, BWV 1023: I. (Allegro) - Adagio ma non tanto
Sonate für Violine und Continuo e-Moll, BWV 1023: II. Allemanda
Sonate für Violine und Continuo e-Moll, BWV 1023: III. Gigue
Sonate I für Violine Solo g-Moll, BWV 1001: I. Adagio
Sonate I für Violine Solo g-Moll, BWV 1001: II. Fuga
Sonate I für Violine Solo g-Moll, BWV 1001: III. Siciliana
Sonate I für Violine Solo g-Moll, BWV 1001: IV. Presto
Sonate fur Violine und Cembalo VI G-Dur (1. Fassung), BWV 1019a: III. Cantabile
Sonate fur Violine und Cembalo VI G-Dur (1. Fassung), BWV 1019a: IV. Adagio
Sonate fur Violine und Cembalo VI G-Dur (3. Fassung), BWV 1019: I. Allegro
Sonate fur Violine und Cembalo VI G-Dur (3. Fassung), BWV 1019: II. Largo
Sonate fur Violine und Cembalo VI G-Dur (3. Fassung), BWV 1019: III. Allegro
Sonate fur Violine und Cembalo VI G-Dur (3. Fassung), BWV 1019: IV. Adagio
Sonate fur Violine und Cembalo VI G-Dur (3. Fassung), BWV 1019: V. Allegro
Partita II d-Moll, BWV 1004: V. Ciaccona in a-Moll (arr. For cembalo by Naoya Otsuka)
Double Concerto for Harpsichord and Fortepiano in E flat major, Wq 47: I. Allegro di molto
C.P.E. Bach: Bassoon Music / Werke für Fagott
Double Concerto for Harpsichord and Fortepiano in E flat major, Wq 47: II. Larghetto
Double Concerto for Harpsichord and Fortepiano in E flat major, Wq 47: III. Presto