Cervello ("Brain") is a band from Italy. History Cervello was formed by musicians from Naples. Corrado Rustici, then 17 years old, was the younger brother of Danilo Rustici, who was the guitarist of
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 0x7f02773e98692ab0c7d9b89e7780fcaf0bf57f2810e4c1158f35f3788fff7578. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bb219f6-ea74-4e51-a528-b8795945fd13.json and https://artists.proofprofile.net/proofs/artist/5bb219f6-ea74-4e51-a528-b8795945fd13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).