Giancarlo or Gian Carlo is a masculine double name, composed of the Italian names Giovanni and Carlo. Giancarlo or Gian Carlo is an apocopated and blended form of the name Giovanni Carlo. Giancarlo is
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 0x6cfc0a3418dc4ef055a887f6b7b4bbf7daf84245cc2aa2132241b77326cd1a7c. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a4ad36f-8270-4f1a-aa95-6ffe72f043ba.json and https://artists.proofprofile.net/proofs/artist/0a4ad36f-8270-4f1a-aa95-6ffe72f043ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).