{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ZYNKH2HZKQ22X3N7AIM56PXXXV","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":"770fa92725911e0ded5ced2073be3919ae6fc0bcb9e6a89e751297ec17b3159d","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-05T18:00:14Z","title_canon_sha256":"70814ebdc86a69e2b69b5334320cfe0a7a2fcd2c2d87128ecf8701c2a00c5d77"},"schema_version":"1.0","source":{"id":"2608.06417","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.06417","created_at":"2026-08-10T01:10:37Z"},{"alias_kind":"arxiv_version","alias_value":"2608.06417v1","created_at":"2026-08-10T01:10:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.06417","created_at":"2026-08-10T01:10:37Z"},{"alias_kind":"pith_short_12","alias_value":"ZYNKH2HZKQ22","created_at":"2026-08-10T01:10:37Z"},{"alias_kind":"pith_short_16","alias_value":"ZYNKH2HZKQ22X3N7","created_at":"2026-08-10T01:10:37Z"},{"alias_kind":"pith_short_8","alias_value":"ZYNKH2HZ","created_at":"2026-08-10T01:10:37Z"}],"graph_snapshots":[{"event_id":"sha256:0db55606fb47016063749978894cc0ba851cbe0cf65a6f449f0af439ef87089b","target":"graph","created_at":"2026-08-10T01:10:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2608.06417/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The proliferation of misinformation online has driven demand for scalable detection systems. While most existing approaches rely on surface-level linguistic features or external knowledge retrieval, we examine truthfulness as a geometric property of a language model's representation space. We introduce a misinformation detection framework grounded in activation engineering, which leverages the latent geometry of transformer models. Our approach elicits a misinformation direction in the residual stream by contrasting activations from paired truthful and false statements, following the differenc","authors_text":"Lucas M. Fraga, Lucas S. Kupssinsk\\\"u, Marcelo M. Mussi, Ot\\'avio Parraga, Pedro Barcelos, Rodrigo C. Barros","cross_cats":["cs.CL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-05T18:00:14Z","title":"Latent Fact-Checking: Detecting Misinformation through Activation Engineering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.06417","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:d85376347eec06c058f2dded7b75cfd7fbae3eb1d87b62a248f71bcdbf023482","target":"record","created_at":"2026-08-10T01:10:37Z","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":"770fa92725911e0ded5ced2073be3919ae6fc0bcb9e6a89e751297ec17b3159d","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-08-05T18:00:14Z","title_canon_sha256":"70814ebdc86a69e2b69b5334320cfe0a7a2fcd2c2d87128ecf8701c2a00c5d77"},"schema_version":"1.0","source":{"id":"2608.06417","kind":"arxiv","version":1}},"canonical_sha256":"ce1aa3e8f95435abedbf0219df3ef7bd4493cb2fc672da5016885e35266fe0e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce1aa3e8f95435abedbf0219df3ef7bd4493cb2fc672da5016885e35266fe0e0","first_computed_at":"2026-08-10T01:10:37.138719Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-10T01:10:37.138719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rfjBKkBvbRyn8Js/TwQggcrW4OFcbn0kTiF78OjLTELMBkyV8ErMmB9rmCjhCDb0DyWJj8ElZrQ6MoSywWgzBA==","signature_status":"signed_v1","signed_at":"2026-08-10T01:10:37.141050Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.06417","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d85376347eec06c058f2dded7b75cfd7fbae3eb1d87b62a248f71bcdbf023482","sha256:0db55606fb47016063749978894cc0ba851cbe0cf65a6f449f0af439ef87089b"],"state_sha256":"9b4173168915632d920c609acc945b65d0c5273009fcb51233e3afc08f77679c"}