{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:HQN3FEMEZO6ARRRV2TCWER3A3V","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":"3c4e9ea8a41eff1314a58637c536af6b805e80415898aaf6fef28bb771ea15e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-10-27T20:37:43Z","title_canon_sha256":"336d15b5389c419a346414c23c47489a4dbd773f292c142d0cec56d8adc042d1"},"schema_version":"1.0","source":{"id":"1910.12345","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.12345","created_at":"2026-07-05T00:15:15Z"},{"alias_kind":"arxiv_version","alias_value":"1910.12345v1","created_at":"2026-07-05T00:15:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.12345","created_at":"2026-07-05T00:15:15Z"},{"alias_kind":"pith_short_12","alias_value":"HQN3FEMEZO6A","created_at":"2026-07-05T00:15:15Z"},{"alias_kind":"pith_short_16","alias_value":"HQN3FEMEZO6ARRRV","created_at":"2026-07-05T00:15:15Z"},{"alias_kind":"pith_short_8","alias_value":"HQN3FEME","created_at":"2026-07-05T00:15:15Z"}],"graph_snapshots":[{"event_id":"sha256:ed924730771bbf94d5fe67fc30fe933344ed1246613e36930892c7f975d5d85f","target":"graph","created_at":"2026-07-05T00:15:15Z","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/1910.12345/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Artificial neural networks are trained by a standard backpropagation learning algorithm with regularization to model and predict the systematics of -decay of heavy and superheavy nuclei. This approach to regression is implemented in two alternative modes: (i) construction of a statistical global model based solely on available experimental data for alpha-decay half-lives, and (ii) modeling of the {\\it residuals} between the predictions of state-of-the-art phenomenological model (specifically, the effective liquid-drop model (ELDM)) and experiment. Analysis of the results provide insights on th","authors_text":"John W. Clark, Paulo S. A. Freitas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-10-27T20:37:43Z","title":"Experiments in machine learning of alpha-decay half-lives"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.12345","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":"sha256:002e003bf83e5809891535f2bb6e33fecd4966b43b3f2e0a349a6006ecd06506","target":"record","created_at":"2026-07-05T00:15:15Z","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":"3c4e9ea8a41eff1314a58637c536af6b805e80415898aaf6fef28bb771ea15e2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-10-27T20:37:43Z","title_canon_sha256":"336d15b5389c419a346414c23c47489a4dbd773f292c142d0cec56d8adc042d1"},"schema_version":"1.0","source":{"id":"1910.12345","kind":"arxiv","version":1}},"canonical_sha256":"3c1bb29184cbbc08c635d4c5624760dd543dc9c21b20bddc2445d8f5284e99c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c1bb29184cbbc08c635d4c5624760dd543dc9c21b20bddc2445d8f5284e99c8","first_computed_at":"2026-07-05T00:15:15.843789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:15:15.843789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eSSdSoCXFCq8axGh3FcXd2Qikkp2QCPYkl7ul3j+xqOMzLZgUrze5hnl8/dEXBam6kQpiZoFefqPSHaFA6OVAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:15:15.844247Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.12345","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:002e003bf83e5809891535f2bb6e33fecd4966b43b3f2e0a349a6006ecd06506","sha256:ed924730771bbf94d5fe67fc30fe933344ed1246613e36930892c7f975d5d85f"],"state_sha256":"74330792bf175a2df9cb268b1d6742bbeedf0447ac2545967971c249418fd607"}