Bogardus is the surname of: Abraham Bogardus (1822–1908), American daguerreotypist and photographer Adam Bogardus (1834–1913), American trap shooter Charles Bogardus (1841–1929), American politici
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 0xd209f33ea19cfa7a8a014045b6551cfb57d1bd0d2ec34fff7b80f796ff280eeb. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55525cc9-a487-4556-a3ce-7f4c29b538e2.json and https://artists.proofprofile.net/proofs/artist/55525cc9-a487-4556-a3ce-7f4c29b538e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).