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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5b6f8d33af43fb074eb68f6f765a4cde88f505327197e50b4c81e12d544bbc. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bebb3ed-b178-45e2-a734-e03a1e3591a6.json and https://artists.proofprofile.net/proofs/artist/0bebb3ed-b178-45e2-a734-e03a1e3591a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Orchestra of the Royal Opera House, Covent Garden
La Bohème / Act 1: Chi è Là? - Si Sente Meglio?
La Bohème / Act 1: "Sì. Mi Chiamano Mimì"
Chorus of the Royal Opera House, Covent Garden
La Bohème / Act 2: "Chi Guardi?" - "Ecco I Giocattoli Di Parpignol"
La Bohème / Act 2: "Quando M'en Vo'" (Musetta's Waltz)
La Bohème / Act 2: "Caro!" - "Fuori il Danaro!"
La Bohème / Act 3: "Mimì!" - "Rodolfo M'ama E Mi Fugge"
La Bohème / Act 3: "Mimì è Tanto Malata!"
La Bohème / Act 3: "Addio, dolce Svegliare"
La Bohème / Act 4: "In Un Coupe?....O Mimi, Tu Piu Non Torni"
La Bohème / Act 4: "Vecchia Zimarra, Senti"
La Bohème / Act 4: Oh Dio! Mimi! ...Che Ha Detto il Medico?
Paul Bunyan, Op. 17, Act II Scene 1: Bunyan's Good Morning (Voice of Paul Bunyan)
Paul Bunyan, Op. 17, Prologue: In the forest (Four Young Trees, Two Wild Geese, Semi-Chorus of Old Trees, Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: Shears's Song (John Shears, Farmer's Chorus, Paul Bunyan, Hel Helson)
Paul Bunyan, Op. 17: First Ballad Interlude (Narrator)
Paul Bunyan, Op. 17, Act II Scene 1: Bunyan's Warning (Paul Bunyan)
Paul Bunyan, Op. 17, Act I Scene 1: Bunyan's Greeting (Voice of Paul Bunyan)
Paul Bunyan, Op. 17, Act II Scene 1: Farmers' Song (John Shears, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Call of Lumberjacks (Lumberjacks' Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: Farmers' Exit (Hel Helson, Cronies)
Paul Bunyan, Op. 17, Act I Scene 1: Lumberjacks' Chorus (Three Lumberjacks, Lumberjacks' Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: The Mocking of Hel Helson (Hel Helson, Heron, Moon, Wind, Beetle, Squirrel, Fido, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Bunyan's Welcome (Paul Bunyan)
Paul Bunyan, Op. 17, Act II Scene 1: Fido's Sympathy (Fido)
Paul Bunyan, Op. 17, Act I Scene 1: Quartet of Swedes (Andy Anderson, Pete Peterson, Jen Jenson, Cross Crosshaulson, Paul Bunyan, Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: Cats' Creed (Moppet, Poppet, Voice of Paul Bunyan, Cronies, Hel Helson)
Paul Bunyan, Op. 17, Act I Scene 1: Western Union Boy's Song (Western Union Boy, Paul Bunyan, Hel Helson, Sam Sharkey, Ben Benny, Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: The Fight (Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Cooks' Duet (Sam Sharkey, Ben Benny, Inkslinger, Paul Bunyan, Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: Love Duet (Tiny, Slim, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Animal Trio (Fido, Moppet, Poppet)
Paul Bunyan, Op. 17, Act II Scene 1: Mock Funeral March (Hel Helson, Paul Bunyan, Cronies, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Bunyan's Goodnight (Paul Bunyan)
Paul Bunyan, Op. 17, Act II Scene 1: Hymn (Paul Bunyan, Hel Helson, Tiny, Slim, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Exit of Lumberjacks (Lumberjacks' Chorus)
Paul Bunyan, Op. 17, Act II Scene 1: Third Ballad Interlude (Narrator)
Paul Bunyan, Op. 17, Act I Scene 1: The Blues - Quartet of the Defeated (Paul Bunyan, The Defeated, Inkslinger)
Paul Bunyan, Op. 17, Act II Scene 2: The Christmas Party (Fido, Moppet, Poppet, Inkslinger, John Shears, Western Union Boy, Chorus)
Paul Bunyan, Op. 17, Act I Scene 1: Bunyan's Goodnight (Paul Bunyan) [II]
Paul Bunyan, Op. 17, Act II Scene 2: Bunyan's Farewell (Voice of Paul Bunyan)
Paul Bunyan, Op. 17, Act I Scene 1: Second Ballad Interlude (Narrator, Inkslinger, Chorus)
Paul Bunyan, Op. 17, Act II Scene 2: Litany (Fido, Moppet, Poppet, Tiny, Slim, Paul Bunyan, Hel Helson, Inkslinger, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Food Chorus (Inkslinger, Sam Sharkey, Ben Benny, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Chorus Accusation (Cross, Inkslinger, Jen, Pete, Andy, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Slim's Song (Slim, Inkslinger, Fido, Moppet, Poppet, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Bunyan's Return (Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Inkslinger's Song (Inkslinger)
Paul Bunyan, Op. 17, Act I Scene 2: Entrance of Chorus (Pete, Andy, Jen, Cross, John)
Paul Bunyan, Op. 17, Act I Scene 2: Tiny's Entrance (Ben, Sam, Cross, Andy, John)
Paul Bunyan, Op. 17, Act I Scene 2: Tiny's Song (Tiny, Inkslinger, Slim, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Inkslinger's Regret (Inkslinger, Voice of Paul Bunyan, Chorus)
Paul Bunyan, Op. 17, Act I Scene 2: Bunyan's Goodnight (Voice of Paul Bunyan)
The Drottningholm Court Theatre Orchestra
Le nozze di Figaro, K.492 / Act 1: "Cinque... deci... venti...Cosa stai misurando"
Le nozze di Figaro, K.492 / Act 1: "Se a caso Madama...Or bene, ascolta, e taci"
Le nozze di Figaro, K.492 / Act 1: "Se vuol ballare...Ed aspettaste il giorno"
Le nozze di Figaro, K.492 / Act 1: "La vendetta, oh, la vendetta"
Le nozze di Figaro, K.492 / Act 1: "Tutto ancor non ho perso...Via, resti servita"
Le nozze di Figaro, K.492 / Act 1: "Non so più...Ah, son perduto!"
Le nozze di Figaro, K.492 / Act 1: "Cosa sento! tosto andate...Basilio, in traccia tosto"
Le nozze di Figaro, K.492 / Act 1: "Giovani liete...Cos'è questa commedia?...Giovani liete...Evviva!"
Le nozze di Figaro, K.492 / Act 1: "Non più andrai"
Le nozze di Figaro, K.492 / Act 2: "Porgi amor...Vieni, cara Susanna"
Le nozze di Figaro, K.492 / Act 2: "Voi che sapete...Bravo! che bella voce!"
Le nozze di Figaro, K.492 / Act 2: "Venite... inginocchiatevi..."
Le nozze di Figaro, K.492 / Act 2: "Che novità!"
Le nozze di Figaro, K.492 / Act 2: "Susanna, or via, sortite...Dunque, voi non aprite"
Le nozze di Figaro, K.492 / Act 2: "Aprite, presto...O guarda il demonietto!...Tutto è come io lasciai"
Le nozze di Figaro, K.492 / Act 2: "Esci, ormai, garzon malnato...Susanna!... Signore!"
Le nozze di Figaro, K.492 / Act 2: "Signore, di fuori...Ah! signore... signor!"
Le nozze di Figaro, K.492 / Act 2: "Ah! signor, signor"
Le nozze di Figaro, K.492 / Act 2: "Voi signor, che giusto siete"
Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo...Via, fatti core"
Le nozze di Figaro, K.492 / Act 3: "Crudel! perché finora...E perché fosti meco"
Le nozze di Figaro, K.492 / Act 3: "Hai già vinta la causa!...Vedrò mentr'io sospiro"
Le nozze di Figaro, K.492 / Act 3: "Riconosci in questo amplesso...Eccovi, o caro amico...Andiamo, andiam, bel paggio"
Le nozze di Figaro, K.492 / Act 3: "E Susanna non vien...Dove sono i biei momenti"
Le nozze di Figaro, K.492 / Act 3: "Io vi dico, signor"
Le nozze di Figaro, K.492 / Act 3: "Sull'aria...Che soave zeffiretto"
Le nozze di Figaro, K.492 / Act 3: "Ricevete, o padroncina...Queste sono, Madama"
Le nozze di Figaro, K.492 / Act 3: "Ecco la marcia...Eh, già, solita usanza"
Le nozze di Figaro, K.492 / Act 4: "L'ho perduta...Barbarina, cos'hai?"
Le nozze di Figaro, K.492 / Act 4: "Il capro e la capretta...Nel padiglione a manca"
Le nozze di Figaro, K.492 / Act 4: "In quegli anni in cui val poco"
Le nozze di Figaro, K.492 / Act 4: "Tutto è diposto...Aprite un po'...Signora, ella mi"
Le nozze di Figaro, K.492 / Act 4: "Giunse alfin il momento...Deh, vieni, non tardar"
Le nozze di Figaro, K.492 / Act 4: "Pian pianin le andrò più presso"
Le nozze di Figaro, K.492 / Act 4: "Tutto è tranquillo e placido...Pace, pace mio dolce tesoro"
Le nozze di Figaro, K.492 / Act 4: "Gente, gente, all'armi"
Le nozze di Figaro, K.492 / Act 1 (Ed. Tyson): "Tutto anchor no ho perso"
Le nozze di Figaro, K.492 / Act 2 (Ed. Tyson): "Un moto di gioia"
Le nozze di Figaro, K.492 / Act 2 (Ed. Tyson): "Aprite, presto, aprite...O guarda il demonietto!"
Le nozze di Figaro, K.492 / Act 3 (Ed. Tyson): "Hai già vinta la causa!"
Le nozze di Figaro, K.492 / Act 3 (Ed. Tyson): "E Susanna non vien!...Dove sono i bei momenti"
Le nozze di Figaro, K.492 / Act 4 (Ed. Tyson): "Giunse alfin il momento"
La Fanciulla del West / Act 1: Che faranno i vecchi miei
La Fanciulla del West / Act 1: Hello ... Nick!
La Fanciulla del West / Act 1: Hello, Minnie!
Eugene Onegin, Op. 24, TH.5 / Act 2: Scene and Couplets. "Uzhel ya zasluzhil ot nasmyeshku etu?"
Eugene Onegin, Op. 24, TH.5 / Act 2: "A cette fête conviés"
La Fanciulla del West / Act 1: La posta! La posta!
La Fanciulla del West / Act 1: Mister Johnson, un valzer?
La Fanciulla del West / Act 3: Le tue parole sono di Dio
La Fanciulla del West / Act 1: Come voi leggermi in cor non so
La Fanciulla del West / Act 3: Ah! Ah! Ah!
La Fanciulla del West / Act 3: Ve lo giuro, sceriffo
La Fanciulla del West / Act 3: Maledetto cane!
Nelson, Op. 41, Act III Scene 2: Out of It All, Down Below Hatches
Tosca: Act I: Tre sbirri ... una carrozza