Black Road is a Viking comic book series written by Brian Wood and published by Image Comics, with art by Garry Brown. Set during the Viking Age in Norway, it follows the story of the main character,
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 0x426c84d1f401ca73985335ccf34f89a3f4bb69762fc5cf20e45a843cfe0e303c. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2f2e76b-08f0-43d7-8aca-b1e1e11300e0.json and https://artists.proofprofile.net/proofs/artist/c2f2e76b-08f0-43d7-8aca-b1e1e11300e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).