Giovanni Stefano Carbonelli (c. 9 March 1690/1691, Livorno, Grand Duchy of Tuscany – 1772, London), after 1734 Anglicised to John Stephen Carbonell, was an Italian-born British composer and violinist,
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 0x2a5d135b25d5c5bceac7456ccbcf7a127936a9411f9ebb5c13d0eb76b3e2e051. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02c1a002-49d6-42f1-b484-cc56754440f5.json and https://artists.proofprofile.net/proofs/artist/02c1a002-49d6-42f1-b484-cc56754440f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carbonelli: Sonates pour violon & basse continue
Giovanni Stefano Carbonelli: Sonate da Camera, Nos 1–6
Giovanni Stefano Carbonelli: Sonate da Camera Nos 7-12