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 0xc5bd577a7c099116029770d9cf341b3a80998812fc236eaf4a3b602b3e17ab81. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5dabd5c-9aef-4210-84da-64801af71494.json and https://artists.proofprofile.net/proofs/artist/f5dabd5c-9aef-4210-84da-64801af71494.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dixit Dominus in F Major, S. 44: No. 1, Dixit Dominus
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 → block OTSBitcoinBlock must exist at that height 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 0x7bcabcf6010fa6c28e7df2f3a3edaa70d9cdd4ce25c98c9965bf8711108e527b. 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/DECP92200301.
Dixit Dominus in F Major, S. 44: No. 2, Tecum principium
Dixit Dominus in F Major, S. 44: No. 3, Juravit Dominus
Dixit Dominus in F Major, S. 44: No. 4, Dominus a dextris tuis
Dixit Dominus in F Major, S. 44: No. 5, De torrente
Dixit Dominus in F Major, S. 44: No. 6, Gloria Patri
Laudate pueri in F Major, S. 84: No. 1, Laudate pueri
Laudate pueri in F Major, S. 84: No. 2, Suscitans
Laudate pueri in F Major, S. 84: No. 3, Gloria Patri
Magnificat in B-Flat Major, S. 93: No. 1, Magnificat
Magnificat in B-Flat Major, S. 93: No. 2, Deposuit potentes
Magnificat in B-Flat Major, S. 93: No. 3, Suscepit Israel
Magnificat in B-Flat Major, S. 93: No. 4, Gloria Patri
Alma redemptoris mater in E-Flat Major, S. 23
Litaniae pro Festo Santi Fr. Xaveri in C Minor, S. 87
Kurpiński, Dobrzyński & Moniuszko: Orchestral Works
Symphony No. 2 in C Minor, Op. 15: I. Andante sostenuto - Allegro vivace
Symphony No. 2 in C Minor, Op. 15: II. Andante grazioso
Symphony No. 2 in C Minor, Op. 15: III. Minuetto alla mazovienna. Allegro ma non troppo
Symphony No. 2 in C Minor, Op. 15: IV. Vivace assai
Symphony in C Major, P. I:6: I. Poco Adagio - Allegro
Symphony in C Major, P. I:6: II. Poco Adagio
Symphony in C Major, P. I:6: III. Menuetto. Vivace - Trio
Symphony in C Major, P. I:6: IV. Presto con fuoco
Symphony in E-Flat Major, Op. 41: I. Largo - Allegro spiritoso
Symphony in E-Flat Major, Op. 41: II. Andante un poco adagio
Symphony in E-Flat Major, Op. 41: III. Allegro
Symphony in E-Flat Major, Op. 41: IV. Un poco vivo
Symphony in D Major: I. Allegro con brio
Symphony in D Major: III. Scherzo. Allegro ma non troppo
Symphony in D Major: IV. Finale. Allegro con brio
String Quartet in F Major, Op. 1 No. 1: I. Allegro
String Quartet in F Major, Op. 1 No. 1: II. Andantino
String Quartet in F Major, Op. 1 No. 1: III. Polonoise
String Quartet in F Major, Op. 1 No. 1: IV. Finale Allegro
String Quartet in A Minor, Op. 1 No. 2: I. Allegro
String Quartet in A Minor, Op. 1 No. 2: II. Larghetto
String Quartet in A Minor, Op. 1 No. 2: III. Finale Allegro
String Quartet in D Major, Op. 1 No. 3: I. Allegro
String Quartet in D Major, Op. 1 No. 3: II. Menuetto
String Quartet in D Major, Op. 1 No. 3: III. Andante poco Adagio
String Quartet in D Major, Op. 1 No. 3: IV. Rondo
Violin Sonata in D Major: II. Allegro (I)
Violin Sonata in G Major: III. Tempo di Menuet & Variations
Violin Sonata in C Major: II. Andante innocentemente
Violin Sonata in B-Flat Major: I. Adagio
Violin Sonata in B-Flat Major: II. Allegro
Violin Sonata in B-Flat Major: III. Affectuoso
Violin Sonata in G Major: II. Affettuoso
Violin Sonata in D Major: I. Adagio (II)
Violin Sonata in D Major: II. Allegro (II)
Beethoven: Cello Sonatas, Op. 5 & Variations, WoO 45
Cello Sonata No. 1 in F Major, Op. 5 No. 1: I. Adagio sostenuto - Allegro
Cello Sonata No. 1 in F Major, Op. 5 No. 1: II. Rondo (Allegro vivace)
Cello Sonata No. 2 in G Minor, Op. 5 No. 2: I. Adagio sostenuto ed espressivo - Allegro molto più tosto presto
Cello Sonata No. 2 in G Minor, Op. 5 No. 2: III. Rondo (Allegro)
12 Variations on "See the Conqu'ring Hero Comes", WoO 45
Mozart: Bella mia fiamma… - Concert Arias
Ch'io mi scordi di te … Non temer, amato bene, K. 505
Symphony No. 6 in D Major, Hob.I:6, "Le matin": I. Adagio - Allegro
Symphony No. 6 in D Major, Hob.I:6, "Le matin": II. Adagio - Andante - Adagio
Symphony No. 6 in D Major, Hob.I:6, "Le matin": III. Menuet
Symphony No. 6 in D Major, Hob.I:6, "Le matin": IV. Finale: Allegro
Symphony No. 7 in C Major, Hob.I:7, "Le midi": I. Adagio - Allegro
Symphony No. 7 in C Major, Hob.I:7, "Le midi": II. Recitativo: Adagio - Allegro - Adagio
Symphony No. 7 in C Major, Hob.I:7, "Le midi": III. Menuetto
Symphony No. 7 in C Major, Hob.I:7, "Le midi": IV. Finale: Allegro
Symphony No. 8 in G Major, Hob.I:8, "Le soir": I. Allegro molto
Symphony No. 8 in G Major, Hob.I:8, "Le soir": II. Andante
Symphony No. 8 in G Major, Hob.I:8, "Le soir": III. Menuetto
Symphony No. 8 in G Major, Hob.I:8, "Le soir": IV. La tempesta: Presto
Symphony No. 6 in C Major, Op. 24, No. 1: I. Poco Adagio - Allegro
Symphony No. 6 in C Major, Op. 24, No. 1: II. Poco Adagio
Symphony No. 6 in C Major, Op. 24, No. 1: III. Menuetto: Vivace - Trio
Symphony No. 6 in C Major, Op. 24, No. 1: IV. Presto con fuoco
Symphony in D Major: III. Scherzo: Allegro ma non troppo
Symphony in D Major: IV. Finale: Allegro con brio
Double String Quintet in D Minor, Op. 28: I. Allegro
Flute Concerto in E-Flat Major, QV 5:89: I. Allegro spiritoso
Requiem in D Minor "Missa pro defunctis ": No. 1, Requiem aeternam
Double String Quintet in D Minor, Op. 28: II. Adagio
Flute Concerto in E-Flat Major, QV 5:89: II. Affetuoso
Requiem in D Minor "Missa pro defunctis ": No. 2, Dies irae
Double String Quintet in D Minor, Op. 28: III. Scherzo. Allegro molto
Flute Concerto in E-Flat Major, QV 5:89: III. Vivace
Requiem in D Minor "Missa pro defunctis ": No. 3, Tuba mirum
Double String Quintet in D Minor, Op. 28: IV. Introduction. Andante - Allegro
Flute Concerto in G Minor, QV 5:206: I. Allegretto
Requiem in D Minor "Missa pro defunctis ": No. 4, Rex tremendae
String Octet in E Major, Op. 23: I. Allegro moderato
Flute Concerto in G Minor, QV 5:206: II. Amorevole
Requiem in D Minor "Missa pro defunctis ": No. 5, Recordare
String Octet in E Major, Op. 23: II. Andante
Flute Concerto in G Minor, QV 5:206: III. Presto
String Octet in E Major, Op. 23: III. Scherzo. Allegro assai
Flute Concerto in E Minor, QV 5:124: I. Allegro ma non tanto
String Octet in E Major, Op. 23: IV. Allegro furioso
Flute Concerto in E Minor, QV 5:124: II. Adagio assai
Flute Concerto in E Minor, QV 5:124: III. Allegro assai
Flute Concerto in E Major, QV 5:108: I. Allegretto
Flute Concerto in E Major, QV 5:108: II. Affettuoso di molto
Flute Concerto in E Major, QV 5:108: III. Presto
Zieleński: Offertoria et communiones totius anni (Excerpts)
Offertoria et communiones totius anni (Excerpts): Ecce Virgo concipiet
Offertoria et communiones totius anni (Excerpts): Magnificat
Offertoria et communiones totius anni (Excerpts): Deus firmavit orbem terrae
Offertoria et communiones totius anni (Excerpts): Viderunt omnes fines terrae
Offertoria et communiones totius anni (Excerpts): Vox in Rama
Offertoria et communiones totius anni (Excerpts): Vidimus stellam eius
Offertoria et communiones totius anni (Excerpts): Responsum accepit simeon
Offertoria et communiones totius anni (Excerpts): Fantasia a tre
Offertoria et communiones totius anni (Excerpts): In monte Oliveti
Offertoria et communiones totius anni (Excerpts): Salve festa dies
Offertoria et communiones totius anni (Excerpts): Mitte manum tuam
Offertoria et communiones totius anni (Excerpts): Ascendit Deus
Offertoria et communiones totius anni (Excerpts): Spiritus Sanctus docebit vos
Offertoria et communiones totius anni (Excerpts): Video caelos apertos
Offertoria et communiones totius anni (Excerpts): Benedictus sit Deus Pater
Piano Trio in B-Flat Major, Op. 2: I. Allegro
Piano Trio in B-Flat Major, Op. 2: II. Larghetto
Piano Trio in B-Flat Major, Op. 2: III. Rondo. Allegro
Piano Quartet in E-Flat Major, Op. 15: I. Moderato
Piano Quartet in E-Flat Major, Op. 15: II. Romance. Andantino
Piano Quartet in E-Flat Major, Op. 15: III. Rondo. Allegro assai
Cello Sonata No. 1 in F Major, Op. 5 No. 1: II. Rondo: Allegro vivace
Cello Sonata No. 2 in G Minor, Op. 5 No. 2: I. Adagio sostenuto e espressivo - II. Allegro molto più tosto presto
Cello Sonata No. 2 in G Minor, Op. 5 No. 2: III. Rondo: Allegro
12 Variations in G Major on See the conqu'ring hero comes from Handel's Judas Maccabaeus, WoO 45