Gonza (; ) (1718?–1739), sometimes also Gonzo, was a Japanese castaway who drifted ashore together with Sōza (; ), sometimes also Sozo, in the environs of Kamchatka in 1729, after the wreck of their s
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 0xe4380c407abc21e73c04f2e790b960159e192ec037b9749c9fa79cb1e1674d4d. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de472afc-fed9-4000-8e61-c2499b19d1ce.json and https://artists.proofprofile.net/proofs/artist/de472afc-fed9-4000-8e61-c2499b19d1ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).