{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:B73U2PGURALQB3UPIAZWM2TOBA","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":"1f683bdb075dfb0e6bc553668561060213cd8e1d7bc10f3659b6ab746a1221e6","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-27T07:30:30Z","title_canon_sha256":"4cd9a2385361d3b37d9ab28078e5661edbc01f0a84f280a42f05e1ce71724565"},"schema_version":"1.0","source":{"id":"2605.28074","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28074","created_at":"2026-05-28T01:04:57Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28074v1","created_at":"2026-05-28T01:04:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28074","created_at":"2026-05-28T01:04:57Z"},{"alias_kind":"pith_short_12","alias_value":"B73U2PGURALQ","created_at":"2026-05-28T01:04:57Z"},{"alias_kind":"pith_short_16","alias_value":"B73U2PGURALQB3UP","created_at":"2026-05-28T01:04:57Z"},{"alias_kind":"pith_short_8","alias_value":"B73U2PGU","created_at":"2026-05-28T01:04:57Z"}],"graph_snapshots":[{"event_id":"sha256:6422d20f5f97ae9471b795539ef77f8527de5e057fe68430c1301261b1749094","target":"graph","created_at":"2026-05-28T01:04:57Z","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/2605.28074/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Retrieval-Augmented Generation (RAG) mitigates LLM hallucinations but introduces a critical vulnerability: corpus integrity. We present SilentRetrieval, a two-stage data poisoning attack that hijacks RAG systems through adversarially crafted yet fluent documents. Stage 1 uses Coordinated Beam Search, a multi-token joint optimization method with a fluency-similarity objective, to keep a poisoned host document retrievable while constraining perplexity. Stage 2 uses Context-Adaptive Trigger Generation, a lightweight trigger-fusion step driven by a frozen LLM, to integrate manipulation triggers in","authors_text":"Jiachen Qian","cross_cats":["cs.CL","cs.IR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-27T07:30:30Z","title":"SilentRetrieval: Hijacking Retrieval-Augmented Generation via Semantically-Preserving Adversarial Data Poisoning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28074","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:e0d4bd0b09e9a4af962a5446e54cbc8a839c333480817bedc04c39a155507d64","target":"record","created_at":"2026-05-28T01:04:57Z","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":"1f683bdb075dfb0e6bc553668561060213cd8e1d7bc10f3659b6ab746a1221e6","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-05-27T07:30:30Z","title_canon_sha256":"4cd9a2385361d3b37d9ab28078e5661edbc01f0a84f280a42f05e1ce71724565"},"schema_version":"1.0","source":{"id":"2605.28074","kind":"arxiv","version":1}},"canonical_sha256":"0ff74d3cd4881700ee8f4033666a6e08036d0ab701fe2886688bda1f76e6787e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ff74d3cd4881700ee8f4033666a6e08036d0ab701fe2886688bda1f76e6787e","first_computed_at":"2026-05-28T01:04:57.845791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-28T01:04:57.845791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1b+8Ni1y+0z1qu2JhhfOhrOQo91F0AnFR9ncu7QR1P1WpxwkIrFxuhufoKi5TRxfoC6LdOF2SouqmHaKmDnXCg==","signature_status":"signed_v1","signed_at":"2026-05-28T01:04:57.846203Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.28074","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0d4bd0b09e9a4af962a5446e54cbc8a839c333480817bedc04c39a155507d64","sha256:6422d20f5f97ae9471b795539ef77f8527de5e057fe68430c1301261b1749094"],"state_sha256":"8b53d519235ec5b261e8e1295df09c1bd345bc7c8316c972dc6881455a71f0b2"}