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 0x0b7f357187392bc9cf11a63610390d66ea98febccf29cfea93283fb3b020ab12. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca2a11a7-7521-4d98-adec-e128d401a48f.json and https://artists.proofprofile.net/proofs/artist/ca2a11a7-7521-4d98-adec-e128d401a48f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brahms: A German Requiem (2023 Remastered Version)
A German Requiem, Op. 45: I. Blessed are they that mourn
A German Requiem, Op. 45: II. Behold, all flesh is as the grass
A German Requiem, Op. 45: III. Lord, make me to know
A German Requiem, Op. 45: IV. How lovely are thy dwellings
A German Requiem, Op. 45: V. Ye now are sorrowful
A German Requiem, Op. 45: VI. Here on earth have we no lasting place
A German Requiem, Op. 45: VII. Blessed are the dead
Saint-Saens: Symphony No. 3 "Organ" & Le Carnaval des animaux (2023 Remastered Version)
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Adagio
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Allegro moderato
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): I. Poco adagio
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Allegro moderato
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Presto
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Maestoso
Symphony No. 3 in C Minor, Op. 78 "Organ" (Remastered): II. Allegro
The Carnival of the Animals, R.125: 1. Introduction and Royal March of the Lion. Andante maestoso - Allegro non troppo - Più allegro
The Carnival of the Animals, R.125: 2. Hens and Cocks. Allegro moderato - Animato
The Carnival of the Animals, R.125: 3. Wild Asses. Presto furioso
The Carnival of the Animals, R.125: 4. Tortoises. Andante maestoso
The Carnival of the Animals, R.125: 5. The Elephant. Allegretto pomposo
The Carnival of the Animals, R.125: 6. Kangaroos. Moderato
The Carnival of the Animals, R.125: 7. Aquarium. Andantino
The Carnival of the Animals, R.125: 8. Personages with long ears. Tempo ad libitum
The Carnival of the Animals, R.125: 9. The Cuckoo in the Heart of the Woods. Andante
The Carnival of the Animals, R.125: 10. Aviary. Moderato grazioso
The Carnival of the Animals, R.125: 11. Pianists. Allegro moderato
The Carnival of the Animals, R.125: 12. Fossils. Allegro ridicolo
The Carnival of the Animals, R.125: 13. The Swan. Andantino grazioso
The Carnival of the Animals, R.125: 14. Finale. Molto allegro
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral" (Remastered)
Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso - 2021 Remastered Version
Symphony No. 9 in D Minor, Op. 125 "Choral": II. Molto vivace - 2021 Remastered Version
Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile - 2021 Remastered Version
Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - 2021 Remastered Version
Symphony No. 9 in D Minor, Op. 125 "Choral": Recitativo "O Freunde, nicht diese Töne!" - Allegro assai - 2021 Remastered Version
Ormandy Conducts Johann & Josef Strauss: Waltzes, Overtures & Polkas and More (2022 Remastered Version)
An der schönen, blauen Donau, Walzer, Op. 314 - 2022 Remastered Version
Die Fledermaus, IJS 481: Ouverture - 2022 Remastered Version
Geschichten aus dem Wiener Wald, Op. 325 - 2022 Remastered Version
Accelerationen, Walzer, Op. 234 - 2022 Remastered Version
Der Zigeunerbaron, IJS 486: Overture - 2022 Remastered Version
Aquarellen, Op. 258 "Walzer" - 2022 Remastered Version
Pizzicato Polka - 2022 Remastered Version
Fürstin Ninetta, Op. 449, Act III: Neue Pizzicato Polka - 2022 Remastered Version
Millions d'Arlequin. Valse bluette (Air de ballet No. 2) - 2022 Remastered Version
Der Rosenkavalier, Op. 59, TrV 227: Walzerfolge - 2022 Remastered Version
Spielerei, Op. 140 - 2022 Remastered Version
Schwanda the Bagpiper: Polka and Fugue - 2022 Remastered Version
Thomson: Louisiana Story & 5 Portraits (Remastered)
Louisiana Story Suite: I. Pastoral. The Bayou and the Marsh Buggy - 2021 Remastered Version
Louisiana Story Suite: II. Chorale. The Derrick Arrives - 2021 Remastered Version
Louisiana Story Suite: III. Passacaglia. Robbing the Alligator's Nest - IV. Fugue. Boy Fights Alligator - 2021 Remastered Version
5 Portraits: Bugles and Birds - 2021 Remastered Version
5 Portraits: Percussion Piece - 2021 Remastered Version
5 Portraits: Cantabile for Strings - 2021 Remastered Version
5 Portraits: Tango Lullaby - 2021 Remastered Version
5 Portraits: Fugue - 2021 Remastered Version
Thomson: 3 Pictures for Orchestra & 5 Songs from William Blake (Remastered)
3 Pictures for Orchestra: The Seine At Night - 2021 Remastered Version
3 Pictures for Orchestra: Wheat Field At Noon - 2021 Remastered Version
3 Pictures for Orchestra: Sea Piece With Birds - 2021 Remastered Version
5 Songs from William Blake: No. 1 The Divine Image - 2021 Remastered Version
5 Songs from William Blake: No. 2 Tiger! Tiger! - 2021 Remastered Version
5 Songs from William Blake: No. 3 The Land Of Dreams - 2021 Remastered Version
5 Songs from William Blake: No. 4 The Little Black Boy - 2021 Remastered Version
5 Songs from William Blake: No. 5 And Did Those Feet - 2021 Remastered Version
Tristan und Isolde: Wie lachend sie mir Lieder singen
Der fliegende Holländer: Mit Gewitter und Sturm
Orchestra of the San Francisco Opera House
Die Meistersinger von Nürnberg: Morgendlich leuchtend im hellen Schein
Schwanengesang, D957: Ständchen (Serenade) [Text: Ludwg Rellstab];
Die Walküre: Winterstürme wichen dem Wonnemond
Symphony No. 3 in E-Flat Major, Op. 97, "Rhenish": V. Lebhaft
La boutique fantasque, P. 120: Can-can and Scene
Le carnaval romain (Roman Carnaval), Op. 9
Die Walkure, Act III: Ride of the Valkyries
Leichte Kavallerie (Light Cavalry): Overture
Pelleas et Melisande (Pelleas and Melisande), Act IV: Interlude
2 Elegiac Melodies, Op. 34: II. Varen (Last Spring)
Eine Faust-Symphonie in 3 Charakterbildern, S108/R425, "A Faust Symphony": II. Gretchen (conclusion)
A Village Romeo and Juliet: The Walk to the Paradise Garden
La scala di seta (The Silken Ladder): Overture
Die Entfuhrung aus dem Serail, K. 384: Overture
La damnation de Faust (The Damnation of Faust), Op. 24: Hungarian March
Symphony No. 41 in C Major, K. 551, "Jupiter": IV. Allegro molto
Symphony No. 2 in C Major, Op. 61: IV. Allegro molto vivace
Le Poeme de l'extase (The Poem of Ecstasy), Op. 54 (conclusion)
Symphony No. 9 in E Minor, Op. 95, "From the New World": III. Molto vivace
Symphony No. 7 in E Major, WAB 107: I. Allegro moderato (beginning) (modified 1885 version, ed. A. Gutmann)
Symphonie fantastique, Op. 14: II. Un bal (The Ball)
Serenade in E-Flat Major, Op. 6: II. Allegro ma non troppo e grazioso
Symphony No. 4 in E Minor, Op. 98: IV. Allegro energico e passionato
Symphony No. 5 in C-Sharp Minor: IV. Adagietto
La mer: La Mer: III. Dialogue du vent et de la mer
Die Meistersinger von Nurnberg, Act III: Prelude
Symphony No. 5 in C Minor, Op. 67: IV. Allegro (conclusion)
Tausend und eine Nacht (Thousand and One Nights), Op. 346
Symphony No. 25 in G Minor, K. 183: IV. Allegro
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
Symphony No. 6 in B Minor, Op. 74, "Pathetique": II. Allegro con grazia
Faust: Faust, Act V Scene 2: Ballet Music
Symphony No. 2 in C Minor, "Resurrection": IV. Urlicht
Symphony No. 1 in C Major, Op. 21: IV. Adagio - Allegro molto e vivace
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 0x275207273664437828096a387800d3d1b3fd619edb0b6bb2f7e4aa724368d8c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BZy8vUF85bHHj2EHfBeoG.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/3BZy8vUF85bHHj2EHfBeoG.
{"copyright_id":"0xe6968e6405c5a3c30c04c3e77972744aafd1500c57fd219f360c2c24e8d44e9a","isrc":"USBC10401972","name":"Tocatta & Fugue in D Minor","registered_at":"2026-06-22T23:56:56Z","spotify_id":"79CNYWYNPCFsfvfFu98UoR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6968e6405c5a3c30c04c3e77972744aafd1500c57fd219f360c2c24e8d44e9a. 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/79CNYWYNPCFsfvfFu98UoR.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/79CNYWYNPCFsfvfFu98UoR.
2 Pieces from Kuolema, Op. 44: No. 1, Valse triste
{"copyright_id":"0x2ade9a88fa906716aa6a8e78914b5c83648761ff1d7df570d9e5702c5c13b5a7","isrc":"USSM15901357","name":"2 Pieces from Kuolema, Op. 44: No. 1, Valse triste","registered_at":"2026-06-25T07:40:53Z","spotify_id":"6caS6qCpZ3KatGRO4F3zzd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ade9a88fa906716aa6a8e78914b5c83648761ff1d7df570d9e5702c5c13b5a7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6caS6qCpZ3KatGRO4F3zzd.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/6caS6qCpZ3KatGRO4F3zzd.