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 0xdc389bd96437d98a5f61baf383927eaaa085f0603e34ab8a3f5ad8babc43c676. 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/f1661901-ea07-4f00-9b5d-8fb4c87d976e.json and https://artists.proofprofile.net/proofs/artist/f1661901-ea07-4f00-9b5d-8fb4c87d976e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
French Suite No. 5 in G Major, BWV 816: III. Sarabande
Ich steh mit einem Fuss im Grabe, BWV 156: Sinfonia
Organ Concerto in G Major, BWV 592: III. Presto (arr. of concerto by Prince Johann Ernst of Saxe-Weimar)
Overture Suite No. 3 in D Major, BWV 1068 (Reconstruction of Original Version): II. Air
Keyboard Concerto in G Major, BWV 986: I. [Allegro]
Overture Suite No. 3 in D Major, BWV 1068 (Reconstruction of Original Version): IV. Bourree
Violin Concerto in E Major, BWV 1042: I. Allegro
Violin Concerto in A Minor, BWV 1041: I. Allegro
Clavier-Büchlein vor W.F. Bach: Prelude in F Major, BWV 927
Violin Concerto in A Minor, BWV 1041: II. Andante
Clavier-Büchlein vor W.F. Bach: Prelude in D Major, BWV 925
Violin Concerto in A Minor, BWV 1041: III. Allegro assai
English Suite No. 2 in A Minor, BWV 807: II. Allemande
Brandenburg Concerto No. 1 in F Major, BWV 1046: I. [Allegro]
Prelude and Fugue in E-Flat Major, BWV 552, "St. Anne": Fugue a 5
Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
Keyboard Partita No. 1 in B-Flat Major, BWV 825: Partita No. 1 in B-Flat Major, BWV 825: I. Praeludium
Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
Keyboard Partita No. 1 in B-Flat Major, BWV 825: Partita No. 1 in B-Flat Major, BWV 825: V. Menuet I and II
Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto - Trio I - Polacca - Trio II - Menuet
3-Part Inventions (Sinfonias), BWV 787–801: Sinfonia No. 10 in G Major, BWV 796
Oboe Sonata in G Minor, BWV 1030b: I. [Andante]
The Well-Tempered Clavier, Book 1, BWV 846-869: Prelude No. 1 in C Major, BWV 846
Oboe Sonata in G Minor, BWV 1030b: II. Siciliano
3-Part Inventions (Sinfonias) Nos. 1-15, BWV 787-801: Sinfonia No. 8 in F Major, BWV 794
Oboe Sonata in G Minor, BWV 1030b: III. Presto [Gigue]
Herz und Mund und Tat und Leben, BWV 147: Jesu bleibet meine Freude, "Jesu Joy of Man's Desiring" (arr. M. Hess for piano)
Goldberg Variations, BWV 988: Aria (arr. for accordion)
Orchestral Suite No. 2 in B Minor, BWV 1067: V. Polonaise - Double
Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
Orchestral Suite No. 2 in B Minor, BWV 1067: VI. Menuet
Cello Suite No. 3 in C Major, BWV 1009: V. Bourree I - II
Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
Was mir behagt, ist nur die muntre Jagd, BWV 208, "Hunt Cantata": Aria: Schafe konnen sicher weiden
The Art of Fugue, BWV 1080: Die Kunst der Fuge (The Art of Fugue), BWV 1080: Contrapunctus I (arr. for chamber ensemble)
Saint John Passion, BWV 245, Pt. I: "Herr, unser Herrscher" (Chorus)
Saint John Passion, BWV 245, Pt. II: "Christus, der uns selig macht" (Chorale)
Saint John Passion, BWV 245, Pt. I: "Jesus ging mit seinen Jüngern" (Evangelist, Jesus, Chorus)
Saint John Passion, BWV 245, Pt. II: "Da führeten sie Jesum..." (Evangelist, Pilatus, Jesus, Chorus)
Saint John Passion, BWV 245, Pt. I: "O große Lieb" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Ach großer König" (Chorale)
Saint John Passion, BWV 245, Pt. I: "Auf daß das Wort erfüllet würde...." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Da sprach Pilatus zu ihm" (Evangelist, Pilatus, Jesus, Chorus)
Saint John Passion, BWV 245, Pt. I: "Dein Will gescheh!" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Betrachte, meine Seel" (Arioso)
Saint John Passion, BWV 245, Pt. I: "Die Schar aber und der Oberhauptman..." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Erwäge, wie sein blutgefärbte Rücken" (Aria)
Saint John Passion, BWV 245, Pt. I: "Von den Stricken" (Aria)
Saint John Passion, BWV 245, Pt. II: "Und die Kriegsknechte..." (Evangelist, Chorus, Pilatus)
Saint John Passion, BWV 245, Pt. I: "Simon Petrus aber folgete Jesus" (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Durch dein Gefängis" (Chorale)
Saint John Passion, BWV 245, Pt. I: "Ich folge dir gleichfalls" (Aria)
Saint John Passion, BWV 245, Pt. II: "Die Jüden aber schrieen..." (Evangelist, Chorus)
Saint John Passion, BWV 245, Pt. I: "Servus Der Selbige Jünger..." (Evangelist, Ancilla, Petrus, Jesus)
Saint John Passion, BWV 245, Pt. II: "Eilt, ihr angeofochtnen" (Aria)
Saint John Passion, BWV 245, Pt. I: "Wer hat dich so geschlagen" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Allda kreuzigten sie ihn..." (Evangelist, Chorus, Pilatus)
Saint John Passion, BWV 245, Pt. I: "Und Hannas sandte..." (Evangelist, Chorus, Petrus, Servus)
Saint John Passion, BWV 245, Pt. II: "In meines Herzens Grunde" (Chorale)
Saint John Passion, BWV 245, Pt. I: "Ach, mein Sinn" (Aria)
Saint John Passion, BWV 245, Pt. II: "Die Kriegsknechte aber..." (Evangelist, Chorus)
Saint John Passion, BWV 245, Pt. I: "Petrus, der nicht denkt zurück" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Er nahm alles wohl in acht" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Und von Stund an..." (Evangelist, Jesus)
Saint John Passion, BWV 245, Pt. II: "Es ist vollbracht!" (Aria)
Saint John Passion, BWV 245, Pt. II: "Und neiget das Haupt..." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Mein teurer Heiland" (Aria, Chorale)
Saint John Passion, BWV 245, Pt. II: "Und siehe da, der Vorhang..." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Mein Herz, in dem die ganze Welt" (Arioso)
Saint John Passion, BWV 245, Pt. II: "Zerfließe, mein Herze" (Aria)
Saint John Passion, BWV 245, Pt. II: "Die Jüden aber..." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "O hilf, Christe, Gottes Sohn" (Chorale)
Saint John Passion, BWV 245, Pt. II: "Darnach bat Pilatum..." (Evangelist)
Saint John Passion, BWV 245, Pt. II: "Ruht wohl, ihr heiligem Gebeine" (Chorus)
Saint John Passion, BWV 245, Pt. II: "Ach Herre, Iaß dein lieb Engelein" (Chorale)
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 2 in G Minor for 2 Violins and Cello, RV 578: 2. Allegro
Vivaldi: L'Estro Armonico ; 6 Flute Concertos
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee40ff803f776f8105693c7a5816b0d514f3f4896c87883580a08e28239514f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/15l3AC7BD86enJjxJoIOmJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/15l3AC7BD86enJjxJoIOmJ.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 2 in G Minor for 2 Violins and Cello, RV 578: 1. Adagio e Spiccato
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7984ee66503158fcf0078ab60eaf2a91024992bf95b6250869599f7b275a24. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/290xBEy5MGTUj9APKTX1NM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/290xBEy5MGTUj9APKTX1NM.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 2 in G Minor for 2 Violins and Cello, RV 578: 4. Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7e3283d6055388aad42796bcdb3b183151456f5529e89e9844333489551c8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3hnbbWfmDwDBbZuzZ5IIqz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3hnbbWfmDwDBbZuzZ5IIqz.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 8 in A Minor for 2 Violins, RV 522: 1. Allegro
Concerto for 2 Violins, 2 Cellos, Strings and Continuo in D, RV 564: 2. Largo
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 2 in G Minor for 2 Violins and Cello, RV 578: 3. Larghetto
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 8 in A Minor for 2 Violins, RV 522: 2. Larghetto e spirituoso
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 8 in A Minor for 2 Violins, RV 522: 3. Allegro
Bach, JS: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. —
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b11e94b7a049a37012b8fac7874518eb0305da42a89a7ea3cf25029b4f72d7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6YmA8OFFXYlXZ4hXo8FbJ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6YmA8OFFXYlXZ4hXo8FbJ7.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 4 in E Minor for 4 Violins, RV 550: 2. Allegro assai
Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 1 in D Major for 4 Violins, RV 549: 2. Largo e Spiccato
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 1 in D Major for 4 Violins, RV 549: 3. Allegro
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 3 in G Major for Solo Violin, RV 310: 1. Allegro
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 7 in F Major for 4 Violins, RV 567: 5. Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91474073ec443521dafbcb0ff9b8d6d1641a11af280c00b428223ad4c7440a8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1fmqvQgrALZIoxJ5aJSHBE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1fmqvQgrALZIoxJ5aJSHBE.
Bach, JS: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe314ce13e00debb796d05ed2e07ccd489a88e0af21d8e5036b61efa6ae46d1a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ioq8C13nlKmJ7dxw5BPtm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ioq8C13nlKmJ7dxw5BPtm.
Bach, JS: Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1a78b32307efe778df58a602092a5b92d2165ca8c10280f5dd328f2e357866. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1P3rkjdUHo8p35N3BuzOlE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1P3rkjdUHo8p35N3BuzOlE.
The Four Seasons (from Il cimento dell'armonia e dell'inventione Op.8): Concerto No. 2 in G minor (L'estate/ Summer) RV315 (Op. 8 No. 2)
Telemann: Tafelmusik, Pt. 3: Ouverture-Suite in B-Flat Major, TWV 55:B1: I. Ouverture. Lentement - Presto