Gregory Rucka (born November 29, 1969) is an American writer known for the series of novels starring his character Atticus Kodiak, the creator-owned comic book series Whiteout, Queen & Country, Stumpt
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 0x0d0f3b3d5bb10f84eb9d976bcbf8449bb75d184683ecc87cd4d8c7fa9e0bd12e. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a9bf399-2aff-4765-a6f0-21a393c2473c.json and https://artists.proofprofile.net/proofs/artist/6a9bf399-2aff-4765-a6f0-21a393c2473c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).