Jack McIver Weatherford (born 1946) is an American anthropologist and author, best known for his 2004 book, Genghis Khan and the Making of the Modern World. Through his academic publications and broa
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 0x5d7830cb7c883b8e7c79e7965218f52145a10f647902124180bf3b53cc5b5e93. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ae4f5dd-0a25-4556-80f7-d5394b351965.json and https://artists.proofprofile.net/proofs/artist/8ae4f5dd-0a25-4556-80f7-d5394b351965.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Genghis Khan and the Making of the Modern World