{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:6PKCHLEAF5SU76JEABZ5D2C3FA","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":"1f175c5a69dc367d83f12270c6e832cc9811ebe7de89cd2dfe4ef42f79268189","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-12-09T10:25:30Z","title_canon_sha256":"8f5bca65ff6213396dabeda4204b3334681eb3f4407b1e4b6c2f02c118549a66"},"schema_version":"1.0","source":{"id":"2012.06051","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.06051","created_at":"2026-07-05T01:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"2012.06051v1","created_at":"2026-07-05T01:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.06051","created_at":"2026-07-05T01:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"6PKCHLEAF5SU","created_at":"2026-07-05T01:58:47Z"},{"alias_kind":"pith_short_16","alias_value":"6PKCHLEAF5SU76JE","created_at":"2026-07-05T01:58:47Z"},{"alias_kind":"pith_short_8","alias_value":"6PKCHLEA","created_at":"2026-07-05T01:58:47Z"}],"graph_snapshots":[{"event_id":"sha256:f33c82ed31bb03e5935b12610360f09611402d479c487b3bc291c6a836e48772","target":"graph","created_at":"2026-07-05T01:58:47Z","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/2012.06051/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Organic reactions are usually assigned to classes containing reactions with similar reagents and mechanisms. Reaction classes facilitate the communication of complex concepts and efficient navigation through chemical reaction space. However, the classification process is a tedious task. It requires the identification of the corresponding reaction class template via annotation of the number of molecules in the reactions, the reaction center, and the distinction between reactants and reagents. This work shows that transformer-based models can infer reaction classes from non-annotated, simple tex","authors_text":"Alain C. Vaucher, Daniel Probst, David Kreutter, Jean-Louis Reymond, Philippe Schwaller, Teodoro Laino, Vishnu H. Nair","cross_cats":["cs.CL","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-12-09T10:25:30Z","title":"Mapping the Space of Chemical Reactions Using Attention-Based Neural Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.06051","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":"sha256:1893a60b71851702d47470fd4bacdfab692f719656ea419372d1aa12154dfb06","target":"record","created_at":"2026-07-05T01:58:47Z","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":"1f175c5a69dc367d83f12270c6e832cc9811ebe7de89cd2dfe4ef42f79268189","cross_cats_sorted":["cs.CL","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-12-09T10:25:30Z","title_canon_sha256":"8f5bca65ff6213396dabeda4204b3334681eb3f4407b1e4b6c2f02c118549a66"},"schema_version":"1.0","source":{"id":"2012.06051","kind":"arxiv","version":1}},"canonical_sha256":"f3d423ac802f654ff9240073d1e85b281eb43240c1c39ba719918d884d5da26b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3d423ac802f654ff9240073d1e85b281eb43240c1c39ba719918d884d5da26b","first_computed_at":"2026-07-05T01:58:47.009726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:58:47.009726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vpW1mR/vk5XOR1guZwnkbi/ubhK+KP3atYyk40QVBZ2kgrsFckxQ2KOE2hvBbyMi/Us1aazIr511Lu2npUttAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:58:47.010148Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.06051","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1893a60b71851702d47470fd4bacdfab692f719656ea419372d1aa12154dfb06","sha256:f33c82ed31bb03e5935b12610360f09611402d479c487b3bc291c6a836e48772"],"state_sha256":"2f91548d2e185ee6b8caa1ebeff074806cc228f4f98ff70cd1b990a89b92a97b"}