{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PDYQU3MIQQHLC6G2DEBAWD4RQP","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":"3323e3f8c1eec9c029ec2eb7bc85e88eb8fa9de23e7b113e08ac1c1f6ff74a48","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2026-06-19T14:33:01Z","title_canon_sha256":"981887a525a9343b79f6939a3fcd5cf280bc7ba3d1af7546590b2b4470e70aff"},"schema_version":"1.0","source":{"id":"2607.24781","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.24781","created_at":"2026-07-29T00:24:43Z"},{"alias_kind":"arxiv_version","alias_value":"2607.24781v1","created_at":"2026-07-29T00:24:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.24781","created_at":"2026-07-29T00:24:43Z"},{"alias_kind":"pith_short_12","alias_value":"PDYQU3MIQQHL","created_at":"2026-07-29T00:24:43Z"},{"alias_kind":"pith_short_16","alias_value":"PDYQU3MIQQHLC6G2","created_at":"2026-07-29T00:24:43Z"},{"alias_kind":"pith_short_8","alias_value":"PDYQU3MI","created_at":"2026-07-29T00:24:43Z"}],"graph_snapshots":[{"event_id":"sha256:37c7a22b997b8c6c3852fa055a966163795a4c8be30c2f1ecaa2efa95dac3628","target":"graph","created_at":"2026-07-29T00:24:43Z","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/2607.24781/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"RAG systems rely on chunking, which destroys structural information in documents. Existing heading-based retrieval (Jeong et al., 2025) requires multiple LLM calls per document and returns sub-chunks within matched sections. We introduce ToC-guided page retrieval, which infers headings from visual formatting without LLM calls, embeds them as a parallel index, and loads full page sections. Across 1,280 conditions on 8 enterprise documents (5 to 195 pages), we find: (1) ToC is a significant main effect on answer quality (d = +0.41, p = 0.031), with the largest gains in completeness (+0.40) and u","authors_text":"Ng S. T. Chong","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2026-06-19T14:33:01Z","title":"Three Sides of Retrieval: Factorial Evidence for Document-Side, Query-Side, and Answer-Side Complementarity in RAG"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.24781","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":"sha256:87b0f273467b75c9133cffdbeaaa212f2a7d68507b119053f3328d9083f99c9e","target":"record","created_at":"2026-07-29T00:24:43Z","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":"3323e3f8c1eec9c029ec2eb7bc85e88eb8fa9de23e7b113e08ac1c1f6ff74a48","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2026-06-19T14:33:01Z","title_canon_sha256":"981887a525a9343b79f6939a3fcd5cf280bc7ba3d1af7546590b2b4470e70aff"},"schema_version":"1.0","source":{"id":"2607.24781","kind":"arxiv","version":1}},"canonical_sha256":"78f10a6d88840eb178da19020b0f9183c498fea841d7bad55edad84e83eeb496","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78f10a6d88840eb178da19020b0f9183c498fea841d7bad55edad84e83eeb496","first_computed_at":"2026-07-29T00:24:43.685387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-29T00:24:43.685387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+bBYhSO6/rQqSnzFbkD4Ahgq40sDiSvnO2pY2SUMA07ZoMEMzgk4V+T6WBZ2TZmYPPdeYWfvmj201yAbyuVUDw==","signature_status":"signed_v1","signed_at":"2026-07-29T00:24:43.686220Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.24781","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87b0f273467b75c9133cffdbeaaa212f2a7d68507b119053f3328d9083f99c9e","sha256:37c7a22b997b8c6c3852fa055a966163795a4c8be30c2f1ecaa2efa95dac3628"],"state_sha256":"e8338b6ac9af6b99be1a6ac5c8305e5ff4f7b0a55eaaaeaa3ac42e964d4191e1"}