Roberto Pace (7 May 1935 – 13 February 2017) was an Italian entomologist and scientific illustrator specializing in beetles. Biography Roberto Pace was born in Monteforte d’Alpone to Attilio Pace a
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 0x5819fe443651a1f082f845db76d9f98237164647d09d693327b778dee41f3d87. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7d5f3c6-0051-4bbe-8013-21dc81cc0088.json and https://artists.proofprofile.net/proofs/artist/e7d5f3c6-0051-4bbe-8013-21dc81cc0088.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).