{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:Z5FKMOAXSOKCWIWV4Y3L54TAC6","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"cdab4fc1cac30681838fd7e99ea80fa357d9a31319945f8eecf8aed9a59312b3","cross_cats_sorted":["cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-06-17T14:59:08Z","title_canon_sha256":"4bb67c7011d2ce63c3c8d672b00bb3cd5e4cfc0c4346ebc157ae680b5d8d9984"},"schema_version":"1.0","source":{"id":"1906.07071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.07071","created_at":"2026-05-17T23:43:11Z"},{"alias_kind":"arxiv_version","alias_value":"1906.07071v1","created_at":"2026-05-17T23:43:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.07071","created_at":"2026-05-17T23:43:11Z"},{"alias_kind":"pith_short_12","alias_value":"Z5FKMOAXSOKC","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"Z5FKMOAXSOKCWIWV","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"Z5FKMOAX","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:e660dd46a495d744d60df098c659cf4a396ef7d3fb79b5740701c71e55604dbb","target":"graph","created_at":"2026-05-17T23:43:11Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Complexity of voting manipulation is a prominent topic in computational social choice. In this work, we consider a two-stage voting manipulation scenario. First, a malicious party (an attacker) attempts to manipulate the election outcome in favor of a preferred candidate by changing the vote counts in some of the voting districts. Afterwards, another party (a defender), which cares about the voters' wishes, demands a recount in a subset of the manipulated districts, restoring their vote counts to their original values. We investigate the resulting Stackelberg game for the case where votes are ","authors_text":"Alexandros A. Voudouris, Edith Elkind, Jiarui Gan, Svetlana Obraztsova, Zinovi Rabinovich","cross_cats":["cs.MA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-06-17T14:59:08Z","title":"Protecting Elections by Recounting Ballots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.07071","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:3fe8a2c6f23b5195daf2fed9763ca3dcd925910002e5babe0aee2a1636fef6f7","target":"record","created_at":"2026-05-17T23:43:11Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"cdab4fc1cac30681838fd7e99ea80fa357d9a31319945f8eecf8aed9a59312b3","cross_cats_sorted":["cs.MA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GT","submitted_at":"2019-06-17T14:59:08Z","title_canon_sha256":"4bb67c7011d2ce63c3c8d672b00bb3cd5e4cfc0c4346ebc157ae680b5d8d9984"},"schema_version":"1.0","source":{"id":"1906.07071","kind":"arxiv","version":1}},"canonical_sha256":"cf4aa6381793942b22d5e636bef260179a33f565900106001fa15a18270754ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf4aa6381793942b22d5e636bef260179a33f565900106001fa15a18270754ee","first_computed_at":"2026-05-17T23:43:11.984895Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:11.984895Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T5KvT3+E25qojqLkQ4cvQTZuvQelEwRxR6EYwN4EnvYj1tU7HnxB5f49P5C70qFm+yBYakRdVqr1YRFHBMspAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:11.985542Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.07071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fe8a2c6f23b5195daf2fed9763ca3dcd925910002e5babe0aee2a1636fef6f7","sha256:e660dd46a495d744d60df098c659cf4a396ef7d3fb79b5740701c71e55604dbb"],"state_sha256":"c9d7ce6c04fbd2572a81dacda2ea27e3680ad28c474885b1ea09553f56260b8f"}