Vittorio Giannini (October 19, 1903 – November 28, 1966) was an American neoromantic composer of operas, songs, symphonies, and band works, and member of the Giannini family. Life and work Giannini,
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 0x21e15c0120411fda622ad3c08b4e04bc9282de53cb9b0b1525759db621270655. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1b8ca02-bc70-482f-b19a-a0ceb10a50ec.json and https://artists.proofprofile.net/proofs/artist/f1b8ca02-bc70-482f-b19a-a0ceb10a50ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Giannini: Symphony No. 3 / Dedication Overture / Variations and Fugue
Giannini, V.: Symphony No. 4 / Piano Concerto
Vittorio Giannini: The Taming of the Shrew
Vittorio Giannini: Piano Quintet, Piano Trio