{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5DRGBRK6WIAG7LVYJ2TWTS5E5M","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":"53ada65bd58bd73f46a64c98c0130631f8da1fdcae4e9a5c0dea26926590f1ce","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-03-13T05:20:56Z","title_canon_sha256":"d933ceaead7b224d073ace3ec52f4571052c0bc18f8a4353bfbd45ef23241cfd"},"schema_version":"1.0","source":{"id":"2603.12666","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.12666","created_at":"2026-06-09T01:05:15Z"},{"alias_kind":"arxiv_version","alias_value":"2603.12666v2","created_at":"2026-06-09T01:05:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.12666","created_at":"2026-06-09T01:05:15Z"},{"alias_kind":"pith_short_12","alias_value":"5DRGBRK6WIAG","created_at":"2026-06-09T01:05:15Z"},{"alias_kind":"pith_short_16","alias_value":"5DRGBRK6WIAG7LVY","created_at":"2026-06-09T01:05:15Z"},{"alias_kind":"pith_short_8","alias_value":"5DRGBRK6","created_at":"2026-06-09T01:05:15Z"}],"graph_snapshots":[{"event_id":"sha256:42510e280216567fac116039754894450e35867691b26b41fd514daab79b84e5","target":"graph","created_at":"2026-06-09T01:05:15Z","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/2603.12666/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Retrosynthesis prediction aims to identify reactants that can synthesize a given product molecule. Although molecular large language models (LLMs) have recently shown promising results, most existing methods either generate reactants directly or provide only generic product-level analysis, without explicitly reasoning about bond-disconnection strategies that justify specific reactant choices. This paper proposes RetroReasoner, a retrosynthetic reasoning model that captures chemists' strategic disconnection-based thinking. RetroReasoner is trained with supervised fine-tuning and reinforcement l","authors_text":"Chanhui Lee, Hanbum Ko, Rodrigo Hormazabal, Sehui Han, Sungbin Lim, Sungwoong Kim, Ye Rin Kim","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-03-13T05:20:56Z","title":"RetroReasoner: A Reasoning LLM for Strategic Retrosynthesis Prediction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.12666","kind":"arxiv","version":2},"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:df064758ba4c1144efa9a452487239bd23fff7b8833cf9777fe59ac6b8dd7091","target":"record","created_at":"2026-06-09T01:05:15Z","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":"53ada65bd58bd73f46a64c98c0130631f8da1fdcae4e9a5c0dea26926590f1ce","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-03-13T05:20:56Z","title_canon_sha256":"d933ceaead7b224d073ace3ec52f4571052c0bc18f8a4353bfbd45ef23241cfd"},"schema_version":"1.0","source":{"id":"2603.12666","kind":"arxiv","version":2}},"canonical_sha256":"e8e260c55eb2006faeb84ea769cba4eb3ee32bfc24233dbebf4b001d39563369","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8e260c55eb2006faeb84ea769cba4eb3ee32bfc24233dbebf4b001d39563369","first_computed_at":"2026-06-09T01:05:15.952919Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T01:05:15.952919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LXZ6HMs1CenY8P6j05UOcyU8/EQXqluyEwIFExvKLT+PAatlCvBmnnuWJ+dVFUEKEZdY57YY+w5uMzklVhBJBQ==","signature_status":"signed_v1","signed_at":"2026-06-09T01:05:15.953461Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.12666","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df064758ba4c1144efa9a452487239bd23fff7b8833cf9777fe59ac6b8dd7091","sha256:42510e280216567fac116039754894450e35867691b26b41fd514daab79b84e5"],"state_sha256":"120ffcaa6a002c10a62ce2499c5bbd2a7835f759eba0d2ea7f34ff0207140469"}