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 0xc6f6449a94feb9f9b9405882600305a014b78bfc2b53a016bb6e3614c36b6f5b. 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/4887cb56-5863-434e-a935-597028cabee4.json and https://artists.proofprofile.net/proofs/artist/4887cb56-5863-434e-a935-597028cabee4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
She Loves Me (2016 Broadway Cast Recording)
On the Side of the Angels (From "Fiorello")
The Golden Age of Light Music: Non-Stop to Nowhere
If I Were a Rich Man - From "Fiddler on the Roof"
My Favorite Musicals Vol. 2: Peaceful Piano
Unclouded Day - Conspirare Christmas 2013 (Recorded Live at The Carillon)
Fiddler On the Roof, Act I: If I Were a Rich Man
Sunrise, Sunset (From "Fiddler on the Roof")
The Apple Tree: Gorgeous - Piano Accompaniment
AMEB Musical Theatre Grade 3: Ladies' Edition (Piano Accompaniments)
Fiddler on the Roof 2018 Cast Recording (in Yiddish)
Wait Wait Don't Kill Me (Original Cast Recording)
Tradition / Matchmaker / Sunrise Sunset / Wedding Dance (From "Fiddler on the Roof")