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 0x9e72673189d1153d66e99728cec2c48d5285086459f004569a7b6fb7e13351b5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b83b42e4-48f4-4b6e-89a7-b6ab1667c48f.json and https://artists.proofprofile.net/proofs/artist/b83b42e4-48f4-4b6e-89a7-b6ab1667c48f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
From the Heart: Italian Arias and Neopolitan Songs
L'elisir d'amore, A 36: Una furtiva lagrima
Madama Butterfly, SC 74: Addio, fiorito asil
Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca)
Rigoletto, Act III: La donna è mobile (Duca)
Ultimate Classical Masterpieces: Mozart, Verdi, Vivaldi
I Lombardi - Act 1: Scena: "Qui nel logo santo e pio"
I Lombardi - Act 1: Quintetto: "T'assale un tremito!"
I Lombardi - Act 1: Scena: "Or s'ascolti"
I Lombardi - Act 1: Scena: "Tutta tremante ancor"
I Lombardi - Act 1: Scena e Finale: "Vieni! Già pose Arvino"
I Lombardi - Act 2: "Sei tu l'uom della caverna...Stolto Allhà"
I Lombardi - Act 2: "Oh madre, dal cielo soccorri al mio pianto"