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 0x1783bf08af5e28422d17e9d8a592b7c8173e866cadd4773420aaf35286af7b47. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e25e46dc-9d5f-40f5-802f-0076cdf58c15.json and https://artists.proofprofile.net/proofs/artist/e25e46dc-9d5f-40f5-802f-0076cdf58c15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Humperdinck: Hänsel und Gretel "Märchenoper in drei Bildern" (Recorded 1933, 1954)
Hänsel und Gretel, Act I Scene 1: Suse, liebe Suse, was raschelt im Stroh? (Recorded 1933)
Hänsel und Gretel, Act II Scene 2: Sandmann – Abendsegen (Recorded 1933)
Hänsel und Gretel, Act III Scene 1: Mir träumte (Recorded 1933)
Hänsel und Gretel: Vorspiel (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 1: Suse, liebe Suse, was raschelt im Stroh? (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 1: Griesgram hinaus (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 1: Brüderchen, komm tanz mit mir (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 2: Holla! (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 2: Da liegt nun der gute Topf in Scherben (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 3: Rallalala, rallalala (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 3: Doch halt, wo bleiben die Kinder? (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 3: Der Besen, was macht man damit? (Recorded 1954) - Live
Hänsel und Gretel, Act I Scene 3: Hexenritt (Recorded 1954) - Live
Hänsel und Gretel, Act II Scene 1: Ein Männlein steht im Walde (Recorded 1954) - Live
Hänsel und Gretel, Act II Scene 2: Der kleine Sandmann bin ich (Recorded 1954) - Live
Hänsel und Gretel, Act II Scene 2: Abendsegen (Recorded 1954) - Live
Hänsel und Gretel, Act II Scene 3: Traum-Pantomime (Recorded 1954) - Live
Hänsel und Gretel, Act III: Orchestervorspiel (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 1: Der kleine Taumann heiß' ich (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 1: Wo bin ich? (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 1: Mir träumte (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 2: Bleib steh'n (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 2: Alles bleibt still (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Knusper, knusper knäuschen (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Hi hi, hi hi (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Halt! Hokuspokus Hexenschuss! (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Der Teig ist gar (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Hurr hopp, hopp, hopp (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Auf! Wach auf, mein Jüngelchen! (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 3: Juchhei! Nun ist die Hexe tot (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 4: Erlöst, befreit (Recorded 1954) - Live
Hänsel und Gretel, Act III Scene 5: Vater! Mutter! (Recorded 1954) - Live
Mozart: Sinfonia concertante in E-flat major, K.364 (Live in concert)
Sinfonia concertante in E-flat major, K.364: I. Allegro maestoso - Live in concert
Sinfonia concertante in E-flat major, K.364: II. Andante - Live in concert
Sinfonia concertante in E-flat major, K.364: III. Presto - Live in concert
Schumann: Symphony in G minor, WoO 29: I. Allegro molto (Live in concert)
Symphony in G minor, WoO 29: I. Allegro molto - Live in concert
Schubert: Symphony No. 4 in C minor, D. 417 "Tragic" (Live in concert)
Symphony No. 4 in C Minor, D. 417: I. Adagio molte - Allegro vivace - Live in concert
Symphony No. 4 in C Minor, D. 417: II. Andante - Live in concert
Symphony No. 4 in C Minor, D. 417: III. Menuetto. Allegro vivace - Live in concert
Symphony No. 4 in C Minor, D. 417: IV. Allegro - Live in concert
Symphony No. 1: IV. Große Fuge und Epilog
Karl Schmitt-Walter, Vol. 2: Popular Songs and Film
Eine Rheinlieder-Folge: Es singt der Rhein
Lolita: Auf der Heide bluh'n die letzten Rosen
Die schone Mullerin: Madel, ich bin dir so gut
Gute Nacht, du mein herziges Kind, Op. 137, No. 2
Gute nacht, mutter: Wunschkonzert: Gute nacht, mutter
Quax, der Bruchpilot: Heimat deine Sterne
Viele gold'ne Sternlein steh'n am blauen himmelszelt
The Barbarian and the Geisha (Original Soundtrack) [1958]
Friedhofer, H.: Von Richtofen and Brown / Private Parts (The Film Music of Hugo Friedhofer)
Harfenserenade (Harfe, Du klingst zärtlich und leise)
Gioconda (Hörst du mein Lied der Liebe?)
Tchaikovsky: Rococo-Variations (Live in concert)
Variations on a Rococo Theme, Op.33: Moderato quasi andante - Live in concert
Fatima Geszler-Vaillancourt (Violoncello)
Variations on a Rococo Theme, Op.33: Moderato semplice - Live in concert
Variations on a Rococo Theme, Op.33: 1. Variation: Tempo della thema - Live in concert
Variations on a Rococo Theme, Op.33: 2. Variation: Tempo della thema - Live in concert
Variations on a Rococo Theme, Op.33: 3. Variation: Andante sostenuto - Live in concert
Variations on a Rococo Theme, Op.33: 4. Variation: Andante grazioso - Live in concert
Variations on a Rococo Theme, Op.33: 5. Variation: Allegro moderato - Live in concert
Variations on a Rococo Theme, Op.33: 6. Variation: Andante - Live in concert
Variations on a Rococo Theme, Op.33: 7. Variation: Allegro vivo - Live in concert
Tchaikovsky: Extracts of Lac des cygnes, Op. 20 & Casse-noisette, Op. 71a (Mono Version)
Le lac des cygnes, Op. 20, Act I: No. 9, Finale
Le lac des cygnes, Op. 20, Act I: No. 2, Valse
Le lac des cygnes, Op. 20, Act II: No. 13, Danse des cygnes. Allegro moderato
Le lac des cygnes, Op. 20, Act II: No. 13, Danse des cygnes. Andante - Andante non troppo
Le lac des cygnes, Op. 20, Act III: No. 20, Danse hongroise Czardas. Moderato assai - Allegro moderato
Le lac des cygnes, Op. 20, Act IV: No. 28, Scène. Allegro agitato
Casse-noisette, Op. 71a, "Ouverture miniature": Allegro giusto
Casse-noisette, Op. 71a, "Danses caractéristiques": Marche. Tempo di marcia viva
Casse-noisette, Op. 71a, "Danses caractéristiques": Danse de la Fée Dragée. Andante ma non troppo
Casse-noisette, Op. 71a, "Danses caractéristiques": Danse russe. Tempo di trepak, molto vivace
Casse-noisette, Op. 71a, "Danses caractéristiques": Danse arabe. Allegretto
Casse-noisette, Op. 71a, "Danses caractéristiques": Danse chinoise. Allegro moderato
Casse-noisette, Op. 71a, "Danses caractéristiques": Danse des mirlitons. Moderato assai
Casse-noisette, Op. 71a, "Valse des fleurs": Tempo di valse
II. Andante tranquillo - Live in concert
IV. Variationen über ein altes Tanzlied - Live in concert
The Big Circus (Le Cirque Fantastique) [Original Movie Soundtrack]
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 0x403adefdbf921107eb24ef262116fe03f152ec9d9aebae2b62f41504b0ba447d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CAC901734412.
Mozart: Symphonie No. 40 - Haydn: Symphonie No. 94 (Mono Version)
Symphonie No. 40 in G Minor, K. 550: I. Molto allegro
Symphonie No. 40 in G Minor, K. 550: II. Andante
Symphonie No. 40 in G Minor, K. 550: III. Menuetto. Allegro
Symphonie No. 40 in G Minor, K. 550: IV. Finale. Allegro assai
Symphonie No. 94 in G Major, Hob. I:94 "Surprise": I. Adagio - Vivace assai
Symphonie No. 94 in G Major, Hob. I:94 "Surprise": II. Largo cantabile
Symphonie No. 94 in G Major, Hob. I:94 "Surprise": III. Menuetto. Allegretto
Symphonie No. 94 in G Major, Hob. I:94 "Surprise": IV. Finale. Presto ma non troppo
Bodart: Variations on a Theme by Franz Schubert (Live in concert)
Bruckner: Symphony No. 8 in C minor, WAB 108, 1890 version (Live in concert)
Symphony No. 8 in C minor, WAB 108: I. Allegro moderato - Live in concert
Symphony No. 8 in C minor, WAB 108: II. Scherzo (Allegro moderato) - Live in concert
Symphony No. 8 in C minor, WAB 108: III. Adagio (Feierlich langsam jedoch nicht schleppend) - Live in concert
Symphony No. 8 in C minor, WAB 108: IV. Finale (Feierlich nicht schnell) - Live in concert
Brahms: Concert for violin and violoncello (Live in concert)
Concerto for Violin and Cello, Op.102: I. Allegro - Live
Concerto for Violin and Cello, Op.102: II. Andante - Live
Concerto for Violin and Cello, Op.102: III. Vivace non troppo - Live
Sonata for Flute and Piano: I. Schnell und frisch
Sonata for Flute and Piano: II. Langsam und zart
Sonata for Flute and Piano: III. Lebhaft
Symphony No. 5: I. Adagio - Allegro ma non troppo
Symphony No. 5: II. Adagio - Andante - Adagio
Symphony No. 4: I. Adagio - Allegro moderato
Symphony No. 4: IV. Andante sostenuto - Allegro ma non troppo
Blendinger: Sinfonietta, Op. 30 (World premiere, Live in concert)
Sinfonietta, Op. 30: I. Allegro - Live in concert
Sinfonietta, Op. 30: II. Lento - Live in concert
Sinfonietta, Op. 30: III. Allegro vivace - Live in concert
Weber: Preciosa, Op. 78, J. 279, WeV F. 22: Overture (Live in concert)
Preciosa Op. 78 J. 279 WeV F. 22: Overture - Live in concert
Graunke: Air (Version for Solo Harp and Orchestra)
Graunke: Air - Version for Solo Harp and Orchestra
Teuscher: Divertimento for String Orchestra, Op. 8 c (Live in concert)
Symphony No. 3: I. Adagio - Allegro non troppo
Symphony No. 3: III. Allegretto scherzando
Symphony No. 3: IV. Adagio - Allegro giocoso
Schumann: Symphony No. 3 in E-flat major, Op. 97, "The Rhenish" (Live in concert)
Symphony No. 3 in E-flat Major, Op. 97: I. Lebhaft - Live in concert
Symphony No. 3 in E-flat Major, Op. 97: II. Scherzo (Sehr mäßig) - Live in concert
Symphony No. 3 in E-flat Major, Op. 97: III. Nicht schnell - Live in concert
Symphony No. 3 in E-flat Major, Op. 97: IV. Feierlich - Live in concert
Symphony No. 3 in E-flat Major, Op. 97: V. Lebhaft - Live in concert
Schumann: Symphony No. 2 in C major, Op. 61 (Live in concert)
Symphony No. 2 in C Major Op. 61: I. Sostenuto assai - Allegro ma non troppo (Live in concert)
Symphony No. 2 in C Major, Op. 61: II. Scherzo (Allegro vivace) - Live in concert
Symphony No. 2 in C Major, Op. 61: III. Adagio espressivo - Live in concert
Symphony No. 2 in C Major, Op. 61: IV. Allegro molto vivace - Live in concert
Symphony No. 2: IV. Adagio - Allegro con spirito
Schumann: Symphony No. 4 in D minor, Op. 120 (Live in concert)
I. Ziemlich langsam - Lebhaft - Live in concert
II. Romanze (Ziemlich langsam) - Live in concert
III. Scherzo (Lebhaft) - Live in concert
Von Suppé: Ouvertures - Single (Mono Version)
Gounod & Dohnányi: Valses - Single (Mono Version)
Faust: Waltz. "Ainsi que la brise légère" - Instrumental Version
The Veil of Pierrette, Op. 18: Wedding Waltz