nx_aid.nx

nx_aid.nx -- LIB: CHARITY ANTI-SCAM integrity (R-AID, pillar 4 of seed-to-feed). Operator: "the descamming capabilities so that food banks and other charitable orgs can make sure that people in need get the food not people exploiting it." An ADDITIVE, auditable aid ledger + exploit-pattern detection that DISTINGUISHES the needy from exploiters WITHOUT ever punishing need. TWO ETHICAL GUARANTEES, enforced by construction (not promised): (A) PRIVACY-FIRST -- recipients are opaque tokens (rid), never PII. Sovereign data, not harvested. (B) FAIL-OPEN -- the automated system NEVER auto-denies (ad_auto_deny == 0 for EVERYONE, always). It only RAISES a risk level for a HUMAN to review. A false positive can never block a hungry person; a real exploiter is surfaced for a person to decide. "People in need get the food; exploiters get reviewed." Descam signals (all measured from the recorded ledger, data-driven thresholds in aid:policy -- rule 11): - DUPLICATE: claiming from too many DISTINCT orgs within the period (double-dipping across charities). - VOLUME: claim value in the period far exceeds the household's expected need. - RESELLER: units in the period far exceed any household's use (a reselling signature). Sovereign seg-store (knowledge/store/aid-*, NO TSV), integer-only. license_tier: ORIGINAL