Stefano Noferini (born 24 May 1961 in Florence, Italy) is an Italian tech and tech house DJ and producer. Biography He began his career in the late 1970s in the clubs of his hometown, Florence. Then
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf05e77e78655b0933010c7dc087b81f0a6b75187a94501f02bc44c2e472734. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/812f2153-e69b-4140-9f37-1888267ba787.json and https://artists.proofprofile.net/proofs/artist/812f2153-e69b-4140-9f37-1888267ba787.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).