{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:THS7VQTLL4X35FITHRZ3H3S4II","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":"a7613d0be403c91b48eecd6d286d4678b99b820948dbd8ab61f7ca047393d843","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-04-10T07:49:10Z","title_canon_sha256":"5f0fc8da18c9916d5aaebe268e93a61e3781989017bf68c150ebe808dc2444c8"},"schema_version":"1.0","source":{"id":"2605.28831","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.28831","created_at":"2026-05-29T00:04:13Z"},{"alias_kind":"arxiv_version","alias_value":"2605.28831v1","created_at":"2026-05-29T00:04:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.28831","created_at":"2026-05-29T00:04:13Z"},{"alias_kind":"pith_short_12","alias_value":"THS7VQTLL4X3","created_at":"2026-05-29T00:04:13Z"},{"alias_kind":"pith_short_16","alias_value":"THS7VQTLL4X35FIT","created_at":"2026-05-29T00:04:13Z"},{"alias_kind":"pith_short_8","alias_value":"THS7VQTL","created_at":"2026-05-29T00:04:13Z"}],"graph_snapshots":[{"event_id":"sha256:a26b3fb6d1d8fcebdcf0c7f02816b2b9cc6a568f797dddb695288d88d0ef8474","target":"graph","created_at":"2026-05-29T00:04:13Z","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/2605.28831/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Long-horizon interactive agents often accumulate large trajectory histories yet still fail to answer questions about earlier events reliably. We argue that the main bottleneck is not context length alone, but the trajectory-to-answer interface of long-term memory. When histories are stored as plain-text chunks and queried with standard retrieval-augmented generation (RAG), systems often retrieve locally relevant but chain-incomplete evidence, especially for spatial, temporal, repeated-event, and multi-hop state questions. We propose S3MEM, a structured scene-event episodic memory framework for","authors_text":"Aoran Wang, Chen Tang, Encheng Su, Jianyu Wu, Jinouwen Zhang, Lintao Wang, Pengze Li, Qiucheng Yu, Shixiang Tang, Xinzhu Ma, Yizhou Wang","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-04-10T07:49:10Z","title":"S3Mem: Structured Spatiotemporal Scene-Event Memory for Long-Horizon Interactive Question Answering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.28831","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":"sha256:9cc3d8b9f551a4dc68177e997bb5a9d13bb319a8d104535c4156ed7c4be66841","target":"record","created_at":"2026-05-29T00:04:13Z","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":"a7613d0be403c91b48eecd6d286d4678b99b820948dbd8ab61f7ca047393d843","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2026-04-10T07:49:10Z","title_canon_sha256":"5f0fc8da18c9916d5aaebe268e93a61e3781989017bf68c150ebe808dc2444c8"},"schema_version":"1.0","source":{"id":"2605.28831","kind":"arxiv","version":1}},"canonical_sha256":"99e5fac26b5f2fbe95133c73b3ee5c42261d7a2bed9dd2d9fa51cf51a2729fb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99e5fac26b5f2fbe95133c73b3ee5c42261d7a2bed9dd2d9fa51cf51a2729fb7","first_computed_at":"2026-05-29T00:04:13.325531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T00:04:13.325531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PvRAYtRWFqS0pue9jgZ854wO04P2sZG0fKk6YWT0BGF+PYATDbaBW9CSsGGqVUYFGalmcLepUQozk+lmZJmXBA==","signature_status":"signed_v1","signed_at":"2026-05-29T00:04:13.326092Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.28831","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cc3d8b9f551a4dc68177e997bb5a9d13bb319a8d104535c4156ed7c4be66841","sha256:a26b3fb6d1d8fcebdcf0c7f02816b2b9cc6a568f797dddb695288d88d0ef8474"],"state_sha256":"37d75d34a227d8cdbc54eeaadcca29d68875d232e20d2e48a1d91e7efba4fdba"}