Giovanni Alberto Ristori (1692 – 7 February 1753) was an Italian opera composer and conductor. He was the son of Tommaso Ristori, the leader of an opera troupe belonging to the King of Poland and Ele
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 0x9ded00d20ef7b871400a46361d74e55be13ad6bcafef8627c081c7e1260c89a4. 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/76197798-d54b-4410-822b-f233f479d1b1.json and https://artists.proofprofile.net/proofs/artist/76197798-d54b-4410-822b-f233f479d1b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ristori: Divoti affetti alla Passione di Nostro Signore - Esercizi per l'accompanimento
G.A. Ristori: Cantatas for Soprano & Oboe Concerto