Corpus-distance: every submission is embedded and diffed against the whole ledger before scoring, and near-duplicates are dropped. A sybil farm cannot amortize creativity, its second puppet must argue something new, its thousandth too. Marginal cost per identity stays flat rather than collapsing toward clone cost, so influence grows only as fast as the attacker can produce distinct, jury-passable reasoning. Scale becomes a hollow advantage: an atlas of a thousand entries, each as costly as the first, none of them jade, no discount, just a bill rising linearly while reward stays capped.