thumb|Julian Perkins in rehearsal, 2012 Julian Perkins is a British conductor and keyboard player (harpsichord, fortepiano and clavichord). Shortlisted for the Gramophone Award in 2021, he is Artistic
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xcddaf34ff8d8820e69ab15d596651a6c6e0b7e93ba884ba97999335eca2f5b98. 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/8c5f4221-25c6-43ff-9723-739735f02f73.json and https://artists.proofprofile.net/proofs/artist/8c5f4221-25c6-43ff-9723-739735f02f73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Handel: Overture to Riccardo Primo - Smith: Six Suites of Lessons for the Harpsichord
Explorer Set: The American Edition, Vol. 1
Summer Dreams: American Piano Duets by Beach, MacDowell & Barber
From Handel's Home: The Keyboards of Handel Hendrix House
Handel's Attick: Music for Solo Clavichord
Dodgson: Margaret Catchpole, Two Worlds Apart
Conversazioni I: Cantatas from a Cardinal's Court
Ingenious Jestings – James Nares: Eight Harpsichord Setts • Handel: Suite in D Minor
The Tempest: Where the bee sucks, there lurk I
Fantasia in D Minor, TWV 33:2: I. Presto
A Voluntary or a Flight of Angels in C Major, HWV 600
Rodelinda: Overture HWV 456 No. 4: III. Menuet
Sweeter Than Roses: Songs by Henry Purcell