{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SGUMAJX2I4FWR6FCJVARJOXMQY","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":"31c9f04a39149619ec7c8b40967d7b74c34d4acf58ee85177d448a9da8dcee4f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-01-30T22:28:04Z","title_canon_sha256":"8455c4d19cdf8ee7bafa82c7b3f9930da4b8a61df5bea1211b2f7d6a8a73d434"},"schema_version":"1.0","source":{"id":"2602.00364","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.00364","created_at":"2026-05-20T00:00:32Z"},{"alias_kind":"arxiv_version","alias_value":"2602.00364v4","created_at":"2026-05-20T00:00:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.00364","created_at":"2026-05-20T00:00:32Z"},{"alias_kind":"pith_short_12","alias_value":"SGUMAJX2I4FW","created_at":"2026-05-20T00:00:32Z"},{"alias_kind":"pith_short_16","alias_value":"SGUMAJX2I4FWR6FC","created_at":"2026-05-20T00:00:32Z"},{"alias_kind":"pith_short_8","alias_value":"SGUMAJX2","created_at":"2026-05-20T00:00:32Z"}],"graph_snapshots":[{"event_id":"sha256:50de5ad5886f4cb3ea8b02072adcaa843dda38fe7a2e1778766e380776bf78f8","target":"graph","created_at":"2026-05-20T00:00:32Z","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/2602.00364/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language models (LLMs) have been serving as effective backbones for retrieval systems, including Retrieval-Augmentation-Generation (RAG), Dense Information Retriever (IR), and Agent Memory Retrieval. Recent studies have demonstrated that such LLM-based Retrieval (LLMR) is vulnerable to adversarial attacks, which manipulates documents by token-level injections and enables adversaries to either boost or diminish these documents in retrieval tasks. However, existing attack studies mainly (1) presume a known query is given to the attacker, and (2) highly rely on access to the victim model's ","authors_text":"Chenxiao Yu, Defu Cao, Jiate Li, Li Li, Ryan A. Rossi, Tiannuo Yang, Wei Yang, Xiyang Hu, Yan Liu, Yuehan Qin, Yue Zhao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-01-30T22:28:04Z","title":"\"Someone Hid It\": Query-Agnostic Black-Box Attacks on LLM-Based Retrieval"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.00364","kind":"arxiv","version":4},"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":"sha256:891f28a78ab3503bac6ace3832cabd4e8ff74051aab54ddc6a860eab885f5e17","target":"record","created_at":"2026-05-20T00:00:32Z","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":"31c9f04a39149619ec7c8b40967d7b74c34d4acf58ee85177d448a9da8dcee4f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CR","submitted_at":"2026-01-30T22:28:04Z","title_canon_sha256":"8455c4d19cdf8ee7bafa82c7b3f9930da4b8a61df5bea1211b2f7d6a8a73d434"},"schema_version":"1.0","source":{"id":"2602.00364","kind":"arxiv","version":4}},"canonical_sha256":"91a8c026fa470b68f8a24d4114baec863871e608c6ec5aaceb8e8d75a8edce0b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91a8c026fa470b68f8a24d4114baec863871e608c6ec5aaceb8e8d75a8edce0b","first_computed_at":"2026-05-20T00:00:32.985139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:00:32.985139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3scV2Bg5sWJ9TXk7fibu3pSHvhCXCgofxUAEPQrsrz3gfEvNfOz14Bz5iwNUsrKpoWa6icUv4Ep7s2YuBppXDw==","signature_status":"signed_v1","signed_at":"2026-05-20T00:00:32.985806Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.00364","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:891f28a78ab3503bac6ace3832cabd4e8ff74051aab54ddc6a860eab885f5e17","sha256:50de5ad5886f4cb3ea8b02072adcaa843dda38fe7a2e1778766e380776bf78f8"],"state_sha256":"58249a5c58f6d95824f3e82782f1dde9149414b9b5c8c903922cdb08b521c3ab"}