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 0x9033581565c9d21355adab8df627ef4ee053d51de686274f4bf806b2a03eba67. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72e4adab-2d0d-47f1-97d5-e1871bff1de2.json and https://artists.proofprofile.net/proofs/artist/72e4adab-2d0d-47f1-97d5-e1871bff1de2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Frescobaldi: l'Opera omnia a stampa per tastiera
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata prima
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata nona
Toccate e partite d'intavolatura di cimbalo et organo, libro primo (arr. for voice and harpsichord): Partita sopra l'aria di Ruggiero
Fantasia seconda, sopra un soggietto solo
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Recercar primo (arr. F. Tasini for organ)
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata seconda
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata decima
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Partita sopra l'aria di folia
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata terza
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata undecima
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Corrente prima - Corrente seconda - Corrente terza - Corrente quarta
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata quarta
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata duodecima
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Capriccio sopra la Battaglia
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata quinta
Toccate e partite d'intavolatura di cimbalo et organo, libro primo (arr. for voice and harpsichord): Partite sopra l'aria della Romanesca
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Balletto I - Balletto II - Balletto III
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata sesta
Toccate e partite d'intavolatura di cimbalo et organo, libro primo (arr. for voice and harpsichord): Partita sopra l'aria di Monicha
Recercar sesto, sopra Fa, Fa, Sol, La, Fa
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata settima
Toccate e partite d'intavolatura di cimbalo et organo, libro primo (arr. for voice and harpsichord): Capriccio Fra Jacopino sopra l'aria di Ruggiero
Recercar settimo, sopra Sol, Mi, Fa, La, Sol
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Toccata ottava
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Balleto e ciaccona
Recercar ottavo, obligo di non uscir mai di grado
Fantasia decima, sopra quattro soggietti
Fantasia undecima, sopra quattro soggietti
Recercar decimo, sopra La, Fa, Sol, La, Re
Fantasia duodecima, sopra quattro soggietti
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Canzona prima
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Canzona seconda
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Canzona terza
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Canzona quarta
Recercari, et canzoni franzese fatte sopra diverse oblighi in partitura, libro primo: Canzona quinta
Mit Musik geht alles besser: Lieder und Melodien von Werner Bochmann, Vol. 2
Sophienlund: Mit Musik geht alles besser
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 0x395e4d3db1675d6e279bb0c0dd6e68f06561772261155f20f0694c32601dae39. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEL111300371.
Fronttheater: Wer ist hier jung, wer hat hier Schwung?
Donner, Blitz und Sonnenschein?: Donner, Blitz und Sonnenschein
Vom schicksal verweht: Wie schon bist du, bezaubernde tropennacht
Wer kusst Madeleine?: Eine frau wie deine frau
Eine ideale Wohnung: Wir haben eine susse kleine Wohnung fur uns zwei
Die Warschauer Zitadelle: In einem weissen Mohnfeld
Kirschen in Nachbars Garten: Links sitzt das herz
Wollen sie meine frau werden: Eine frau braucht so viel Zartlichkeit
Geheimnis eines alten Hauses: Mein entzuckendes Fraulein
Das mach' ich alles nur mit einem netten Lacheln
Quax, der bruchpilot: Ein Flieger hat den Bogen raus
Herz ohne Heimat: Jetzt wird Schluss gemacht
The Golden Era of the German Dance Orchestra: Bernard Ette Orchestra (1926-1940)
Ich glaub' nie mehr an eine Frau: Uber's Meer gruss ich dich, Heimatland
Ich bin nur ein armer kleiner Strassensanger
Es geht um mein Leben: Konne Sie schon fernsehen?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415bb4ad15ae9ee1ce40eda18ec72a20d5359b5bdfaedec8300bcdeefc980477. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEL110000845.
Rosemarie: Grosse Fantasie uber das Lied
"Ich hab' das Fräulein Helen baden seh'n"Die besten Hits von Fred Raymond im Originalsound, Vol. 1 (1925-1942)
Ich hab' das Fraulein Helen baden seh'n (I Saw Miss Helen Bathing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10393cdf52be5fc4a8ba08d9b5c1d15b186133c784eb78fc42e2f9f09224aa2. 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/DEL111200792.
Das schone Fraulein Helen soll nicht mehr baden
Ich reiss' mir eine Wimper aus (I Lost An Eyelash)
Ich hab zu haus so eine stimmungsvolle ecke
Lauf ins Gluck: Lauf ins Gluck - Potpourri
Ball der Nationen: Wer sich die welt mit einem donnerschlag erobern will
Ball der Nationen: Du warst mir ein schoner Traum
Ball der Nationen: Wenn wir beide hochzeit machen
Saison in Salzburg (Season in Salzburg): Und die musik spielt dazu
Saison in Salzburg (Season in Salzburg): Der grosspapa von grossmama
Das bett der pompadour: Heute abend kommt charly zu mir
Die Perle von Tokay: Traum' mit mir ein marchen
The Golden Era of the German Dance Orchestra: Swing in der Imperator Diele (1939 - 1948)
Melodie der Nacht (Melody of the Night): Wir tanzen durch's Leben
Melodie der Nacht (Melody of the Night): Es war noch nie so schon wie heut'
Sensationsprozess Casilla: Wenn du einmal ein Madel magst
Sun Valley Serenade: Chattanooga Choo Choo
Gud vill Yeah Yeah hjälpa dig (Sing-Along Version)
Vilken glädje, vilken fest (Sing-Along Version)
Ett ljus vill jag va (Sing-Along Version)
Du får vara den du är (Sing-Along Version)
Gud han har kontroll (Sing-Along Version)
Fabulous British Dance Bands: Bert Ambrose - From the Depression Years to the Second World War (Recordings 1931-1942)
Whoopee!: A Girl Friend of a Boy Friend of Mine
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The Big Broadcast of 1938: Here lies love
Naughty Marietta, Act II: Ah! Sweet Mystery of Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3dd73f7910a572666517d1fc29fd5443bdd3cac3cba78f973aba36bab0bc88. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL111301158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc483c2644d0301b946989f7891c504a9cdcc305692330f9c8f477427efdadff. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL111301160.
Broadway Melody of 1936: Broadway Rhythm
Broadway Melody of 1936: You are my lucky star
We're Going to Hang out the Washing on the Siegfried Line
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5fcdb88540c11128bdc9b62db31445ad9533a9f57006d594bc86e69035ad65. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEL111301169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c1a54c2a8ba7d3e0afede4c7414972802ddf2117bc4a361e68bdc233ab543d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEL111301171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252d67184d7f16e8bd477bc1800ce340fb1795f5a4f2108a72370c4dcab1448. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEL111301172.
Hit-Parade of German Orchestras of the 1920s and 30s: If Spring Came Again
Adieu, es ist zu schon, um Wahr zu Zein (Goodbye, It's Too Good To Be True)
Alice im Wunderland (Alice in Wonderland)
Unerhort Kust die malwine (Malwina Kisses That Way)
Wenn Wieder Fruhling (If Spring Came Again)
Herr Ober, zwei Mokka! (Waiter, Two Coffees!)
Ich Kauf' mir ne Rakete (I'll Buy a Rocket)
Lass die Frau Nicht Weinen (Don't Make a Woman Cry)
Schones Wette Heute (Good Weather Today)
Du bist meine Greta Garbo (You Are My Greta Garbo)
Veronika, der Lenz ist da (Veronica, Spring Has Arrived!)
Komm doch in meine Arme (Come To My Arms): Frauen im Metropol (Women in the Metropol): Komm doch in meine Arme (Come To My Arms)
Pipsy, mein schwarzer Bebe (Pipsi, My Black Baby)
Frauen sind schon, wenn sie lieben (Women Become More Beautiful if They Are in Love)
Das Licht geht aus (Turn Out the Lights)
The Golden Era of the German Dance Orchestra: Goldene Sieben Orchestra (Recorded 1935-1938)
Lookie, Lookie, Lookie, Here Comes Cookie
Der Mann, der Sherlock Holmes war: Jawohl, meine Herr'n
Donner, Blitz und Sonnenschein: Donner, Blitz und Sonnenschein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f44dac243df327179d1c7bfd9e8a9420f29f9abf1fc339170eb42f3d898bdb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL110000880.
The amazing quest of Ernest Bliss: Die Liebe traumt
Die gottliche Jette: Einmal etwas werden
Togger: Die Liebe ist ein Spiel mit dem Feuer
Libro primo de canzoni da sonare a quattro voci: Canzon, "La Maggia"
Susanne un jour d'amour sollicitee: Cantus firmus - Susanne un jour: Chanson a 5
Lachrimae, "Seaven Teares": XVI. M. Buctons Galiard
Gallicum [Carmina Germanica et Gallica, 16th Century]
Danceries, Book 3: Allemande Et d'ou venez vous - Madame Lucette - Allemandes 2, 6, 5, 4
Ce qui m'est deu et ordonne - Liber Primus Leviorum Carminum: Galliard
Ricercar del primo tuono alla quarta alta (Libro Secondo, 1595)
Terpsichore: Spagnoletta a 4 - Le secret des Muses: Allemande fortune helas pourquoy
Lustgarten neuer teutscher Gesang, Balletti, Gaillarden und Intraden: Intrada
Un cavalier di spagna [Apografo Miscellaneo Marciano]
Frescobaldi: Toccate & Partite d'Intavolatura di Cimbalo & Organo, Libro 2
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata prima
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata decima
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Aria detta la Frescobalda
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata seconda
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata undecima
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2 (arr. for vocal ensemble and organ): Inno della Domenica
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata terza, "per l'organo da sonarsi alla levatione"
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Ancidetemi pur d'Archadelt passagiato (arr. for voice and harpsichord)
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2 (arr. for vocal ensemble and organ): Inno degli Apostoli
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata quarta, "per l'organo da sonarsi alla levatione"
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Corrente prima - Corrente seconda - Corrente seconda alio modo - Corrente quarta - Corrente quinta - Corrente sesta
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2 (arr. for vocal ensemble and organ): Inno Iste Confessor
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata quinta, "sopra i pedali per l'organo e senza"
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Canzona prima - Canzona seconda - Canzona terza - Canzona quarta - Canzona quinta - Canzona sesta
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2 (arr. for vocal ensemble and organ): Inno Ave Maris Stella
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata sesta, "sopra i pedali per l'organo e senza"
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Gagliarda prima - Gagliarda seconda - Gagliarda terza - Gagliarda quarta - Gagliarda quinta
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2 (arr. for vocal ensemble and organ): Magnificat primi toni - Magnificat secundi toni - Magnificat sesti toni
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata settima
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Aria detto Balletto (arr. for voice and harpsichord)
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata ottava, "di durezze e ligature"
Toccate, canzone, versi d'hinni, Magnificat, gagliarde, correnti, Book 2: Toccata nona, "Non senza fatiga si giunge al fine"
Maskarade (Masquerade), FS 39: Overture (arr. J.P. Boyd)
The Mississippi River (arr. Z.L. Collier)
Vanessa, Op. 32: Intermezzo (arr. W. Beeler)
Symphony on Themes of John Philip Sousa: III. After Fairest of the Fair
The Last Full Measure of Devotion (arr. A. Forte)
Time to Take Back the Knights!, "The Chosen"
Frescobaldi: Toccate e partite d'intavolatura di cimbalo et organo, libro primo
Toccate e partite d'intavolatura di cimbalo et organo, libro primo: Capriccio fatto sopra la Pastorale
How Can You Say No When All the World Is Saying Yes?
First a Girl: Everything's In Rhythm With My Heart
Follow the Fleet: I'd Rather Lead a Band
Manhattan Merry-Go-Round: Mama, I Wanna Make Rhythm