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 0x12e375c48f1a9f371c5d6985ac13696ba629ce614d0e94d60d809ad04280df2d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ea8cacb-80ea-4363-bca9-e1fc0b61ee70.json and https://artists.proofprofile.net/proofs/artist/9ea8cacb-80ea-4363-bca9-e1fc0b61ee70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beethoven: Emperor Concerto; Giovanni Alvino
Giovanni Alvino Live in Cagliari 2016, plays Mozart & Beethoven
Giovanni Alvino Plays Mozart No. 21 K 467 and Beethoven No. 5 Opus 73
Piano Concert 467 & 450 (Live) [Live Recording]
Mozart: Twinkle, Twinkle Little Star Variations K 265 (Live 2010)
Rachmaninoff: Mélodie, Op. 3, No. 3 in E Major, Morceaux De Fantasie
Rachmaninoff Prelude Op. 23 n. 2 (Live in Naples 2012)
Rachmaninoff: Italian Polka (Polka Italienne) Arr. for piano solo
Rachmaninoff: Prélude Op. 3 n. 2 (The Bells of Moscow)
CZERNY Étude Op. 740 No. 50 (The Art of Finger Dexterity)