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 0x4375e404cf8c28506a2478e3e2e1f8eea0ef831f002c4c519ae9dc616532a69a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49878e5d-b922-4e50-a6a6-c60617f7c7f3.json and https://artists.proofprofile.net/proofs/artist/49878e5d-b922-4e50-a6a6-c60617f7c7f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chierici: Suoni nel vento dei ricordi (Composizioni per organo 1993-2008)
Natale: il tempo dei ricordi (Ispirato a "Il patto col fantasma" di Charles Dickens)
I Saw Three Ships (Five Christmas Carols)
Movie Passion, Vol. 1 (Songs from Popular Soundtracks)
Movie Passion, Vol. 2 (Songs from Popular Soundtracks)
Movie Passion, Vol. 3 (Songs from Popular Soundtracks)
Leonardo da Vinci Sounds from the Beyond (Electronic Stage Music for Leonardo da Vinci: Testimonianze dall'Aldilà by Enzo Masci)
Suoni nel vento 2 (Composizioni per organo. Mottetti per soprano e organo.)
Contrasti per Organo (Ancient compositions on two historic italian organs in Pontremoli)