The Sound of Thunder is a novel by the Rhodesian writer Wilbur Smith. It is the second book in the Courtney Series and it is set several years after the first book, When the Lion Feeds, focusing aroun
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 0x9b3ee624476cb1be2effcf2756cd3af3a1c2d3dd2ad11535e930a4444803ddab. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85ea4129-46b6-44db-b2fc-984d3407a198.json and https://artists.proofprofile.net/proofs/artist/85ea4129-46b6-44db-b2fc-984d3407a198.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cats Thunder Purr: Music for Feline Comfort