GIAN may stand for: Give it a Name, an annual British rock music festival 2005–2010 Geneva International Academic Network, an international research network See also Gian, a masculine Italian giv
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 0xbb58c8e73c83693a827b91fe7ae088a20fec606e8f4b3fb95954c9d835b41be9. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f43974a6-9e10-4f3f-b789-b352d16a2a55.json and https://artists.proofprofile.net/proofs/artist/f43974a6-9e10-4f3f-b789-b352d16a2a55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).