{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:F7PEFQCJXXT37EXIZ4W5LNLJ2K","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":"3a7314cf8f004adcfb1b40409731c0c3d47182750622a929dc34154a909a1818","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-01-10T18:26:45Z","title_canon_sha256":"7e0ddd5737b3f582f425630bde5e9fa941887d1f1fea78ad0c3e704eb3a6a5ef"},"schema_version":"1.0","source":{"id":"1901.03309","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.03309","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"arxiv_version","alias_value":"1901.03309v3","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.03309","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"pith_short_12","alias_value":"F7PEFQCJXXT3","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F7PEFQCJXXT37EXI","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F7PEFQCJ","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:9433da8536466fbd65b14ea163a90cbc5601cbc9f49a5d7f883b93162d3b4fdb","target":"graph","created_at":"2026-05-17T23:48:30Z","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"},"paper":{"abstract_excerpt":"We address the degree to which machine learning can be used to accurately and transferably predict post-Hartree-Fock correlation energies. Refined strategies for feature design and selection are presented, and the molecular-orbital-based machine learning (MOB-ML) method is applied to several test systems. Strikingly, for the MP2, CCSD, and CCSD(T) levels of theory, it is shown that the thermally accessible (350 K) potential energy surface for a single water molecule can be described to within 1 millihartree using a model that is trained from only a single reference calculation at a randomized ","authors_text":"Anders S. Christensen, Lixue Cheng, Matthew Welborn, Thomas F. Miller III","cross_cats":["cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-01-10T18:26:45Z","title":"A Universal Density Matrix Functional from Molecular Orbital-Based Machine Learning: Transferability across Organic Molecules"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.03309","kind":"arxiv","version":3},"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":"sha256:0e637bf623a333144d97dcda525a41a1e4b63d2c00be9d6525fa6c8bb3717e80","target":"record","created_at":"2026-05-17T23:48:30Z","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":"3a7314cf8f004adcfb1b40409731c0c3d47182750622a929dc34154a909a1818","cross_cats_sorted":["cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-01-10T18:26:45Z","title_canon_sha256":"7e0ddd5737b3f582f425630bde5e9fa941887d1f1fea78ad0c3e704eb3a6a5ef"},"schema_version":"1.0","source":{"id":"1901.03309","kind":"arxiv","version":3}},"canonical_sha256":"2fde42c049bde7bf92e8cf2dd5b569d2956fcba85caa62e0d1ae50579df5b0d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fde42c049bde7bf92e8cf2dd5b569d2956fcba85caa62e0d1ae50579df5b0d5","first_computed_at":"2026-05-17T23:48:30.974816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:30.974816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u9a/9f3Hq7Lg8xnhfJd8gl8p9JewLnE5fDJEM1/jxktANgMywTrUotblqrhNlhob/duElIGAVOVMoBWynE1VDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:30.975462Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.03309","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e637bf623a333144d97dcda525a41a1e4b63d2c00be9d6525fa6c8bb3717e80","sha256:9433da8536466fbd65b14ea163a90cbc5601cbc9f49a5d7f883b93162d3b4fdb"],"state_sha256":"36f3af417b53b199272c1d0a54bb996e6f97d55372dcfa367fefa8c7c5c09de1"}