Dark Outlaw: The Story of Gunman Gardiner is a 1945 Australian historical novel by Frank Clune about bushranger Frank Gardiner. In 1948, Clune stated it was his best-selling book, with over 80,000 co
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 0xb83c7fd98b5b961b28f30dda64f23aed1312f0e25b7f08b0a40c2d96e5cb7434. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3399c356-0840-49fa-a9f7-c12366076e09.json and https://artists.proofprofile.net/proofs/artist/3399c356-0840-49fa-a9f7-c12366076e09.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.