{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:4DYCH62OHOXKPXFDH6BV3T66ZQ","short_pith_number":"pith:4DYCH62O","schema_version":"1.0","canonical_sha256":"e0f023fb4e3baea7dca33f835dcfdecc0033ca0b971c8944171adfe78dafe226","source":{"kind":"arxiv","id":"2606.31121","version":1},"attestation_state":"computed","paper":{"title":"The Past Is Prologue: A Plug-in Controller for Selective Updates in Sequentially Evolving LLM Memory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Chengshuai Shi, Cong Shen, Jundong Li, Peng Wang, Song Wang, Songwei Dong, Zihan Chen","submitted_at":"2026-06-30T04:33:18Z","abstract_excerpt":"Sequentially evolving LLM memory enables agents to reuse past experience, but existing systems usually deploy each locally generated memory update without checking whether it improves future behavior. As a result, updates that help the current task may overwrite useful knowledge, introduce over-specific rules, or bias the final memory toward recent examples. We propose Janus, a plug-in memory controller that decides whether to accept a candidate memory update or retain the previous memory. To make this decision efficient, Janus uses a Memory Momentum Trigger to identify suspicious deviations i"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2606.31121","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AI","submitted_at":"2026-06-30T04:33:18Z","cross_cats_sorted":[],"title_canon_sha256":"e7d62d7896f638a2de9ebea5cfc7ad71d2f64c2592e631ed9cbc5d1075e373e4","abstract_canon_sha256":"4c6912d85717abd1ab932cf62516f1dde23e8938cb5b580235765a57c23d094a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-01T01:17:29.837857Z","signature_b64":"kdeFSdZE7cRFmF7KFODvDeaxblvN6kAebQANIQOSvehWlWllhC3S0dxxHZNPt2JVrJw1VQ5LlfG9UMOwjW8mDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0f023fb4e3baea7dca33f835dcfdecc0033ca0b971c8944171adfe78dafe226","last_reissued_at":"2026-07-01T01:17:29.837424Z","signature_status":"signed_v1","first_computed_at":"2026-07-01T01:17:29.837424Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Past Is Prologue: A Plug-in Controller for Selective Updates in Sequentially Evolving LLM Memory","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.AI","authors_text":"Chengshuai Shi, Cong Shen, Jundong Li, Peng Wang, Song Wang, Songwei Dong, Zihan Chen","submitted_at":"2026-06-30T04:33:18Z","abstract_excerpt":"Sequentially evolving LLM memory enables agents to reuse past experience, but existing systems usually deploy each locally generated memory update without checking whether it improves future behavior. As a result, updates that help the current task may overwrite useful knowledge, introduce over-specific rules, or bias the final memory toward recent examples. We propose Janus, a plug-in memory controller that decides whether to accept a candidate memory update or retain the previous memory. To make this decision efficient, Janus uses a Memory Momentum Trigger to identify suspicious deviations i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.31121","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.31121/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2606.31121","created_at":"2026-07-01T01:17:29.837486+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.31121v1","created_at":"2026-07-01T01:17:29.837486+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.31121","created_at":"2026-07-01T01:17:29.837486+00:00"},{"alias_kind":"pith_short_12","alias_value":"4DYCH62OHOXK","created_at":"2026-07-01T01:17:29.837486+00:00"},{"alias_kind":"pith_short_16","alias_value":"4DYCH62OHOXKPXFD","created_at":"2026-07-01T01:17:29.837486+00:00"},{"alias_kind":"pith_short_8","alias_value":"4DYCH62O","created_at":"2026-07-01T01:17:29.837486+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ","json":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ.json","graph_json":"https://pith.science/api/pith-number/4DYCH62OHOXKPXFDH6BV3T66ZQ/graph.json","events_json":"https://pith.science/api/pith-number/4DYCH62OHOXKPXFDH6BV3T66ZQ/events.json","paper":"https://pith.science/paper/4DYCH62O"},"agent_actions":{"view_html":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ","download_json":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ.json","view_paper":"https://pith.science/paper/4DYCH62O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.31121&json=true","fetch_graph":"https://pith.science/api/pith-number/4DYCH62OHOXKPXFDH6BV3T66ZQ/graph.json","fetch_events":"https://pith.science/api/pith-number/4DYCH62OHOXKPXFDH6BV3T66ZQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ/action/storage_attestation","attest_author":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ/action/author_attestation","sign_citation":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ/action/citation_signature","submit_replication":"https://pith.science/pith/4DYCH62OHOXKPXFDH6BV3T66ZQ/action/replication_record"}},"created_at":"2026-07-01T01:17:29.837486+00:00","updated_at":"2026-07-01T01:17:29.837486+00:00"}