{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:VFGNN4AAP7S33QD4BXB6SNNIBB","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":"e3b1e2f2feaabfa97482e8c30ed481975bae1ac7850e089d20a1e0466a331a14","cross_cats_sorted":["cond-mat.soft"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.BM","submitted_at":"2024-11-28T05:38:30Z","title_canon_sha256":"ab855dd1d63c34e593c96e58ba6788163d80a8733ab455746fff2029cee4a3d8"},"schema_version":"1.0","source":{"id":"2411.18931","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.18931","created_at":"2026-07-05T09:41:54Z"},{"alias_kind":"arxiv_version","alias_value":"2411.18931v1","created_at":"2026-07-05T09:41:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.18931","created_at":"2026-07-05T09:41:54Z"},{"alias_kind":"pith_short_12","alias_value":"VFGNN4AAP7S3","created_at":"2026-07-05T09:41:54Z"},{"alias_kind":"pith_short_16","alias_value":"VFGNN4AAP7S33QD4","created_at":"2026-07-05T09:41:54Z"},{"alias_kind":"pith_short_8","alias_value":"VFGNN4AA","created_at":"2026-07-05T09:41:54Z"}],"graph_snapshots":[{"event_id":"sha256:0e51f1bdef7f4f18f1d5e3efb7153813e3993b4d6c61db91e013363fd8fe635d","target":"graph","created_at":"2026-07-05T09:41:54Z","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/2411.18931/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Potassium ion channels are critical components of biology. They conduct potassium ions across the cell membrane with remarkable speed and selectivity. Understanding how they do this is crucially important for applications in neuroscience, medicine, and materials science. However, many fundamental questions about the mechanism they use remain unresolved, partly because it is extremely difficult to computationally model due to the scale and complexity of the necessary simulations. Here, the selectivity filter (SF) of the KcsA potassium ion channel is simulated using Orb-D3, a recently released u","authors_text":"Timothy T. Duignan","cross_cats":["cond-mat.soft"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.BM","submitted_at":"2024-11-28T05:38:30Z","title":"A potassium ion channel simulated with a universal neural network potential"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.18931","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":"sha256:0d851dd8982ba367818520c5fd8bda8fc7a120617b7a1aa19234dde3f3f7ada8","target":"record","created_at":"2026-07-05T09:41:54Z","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":"e3b1e2f2feaabfa97482e8c30ed481975bae1ac7850e089d20a1e0466a331a14","cross_cats_sorted":["cond-mat.soft"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"q-bio.BM","submitted_at":"2024-11-28T05:38:30Z","title_canon_sha256":"ab855dd1d63c34e593c96e58ba6788163d80a8733ab455746fff2029cee4a3d8"},"schema_version":"1.0","source":{"id":"2411.18931","kind":"arxiv","version":1}},"canonical_sha256":"a94cd6f0007fe5bdc07c0dc3e935a8086de91f1a72d82cf89dff0f55a5542b5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a94cd6f0007fe5bdc07c0dc3e935a8086de91f1a72d82cf89dff0f55a5542b5e","first_computed_at":"2026-07-05T09:41:54.115553Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:41:54.115553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+xX2rH19E5QZ4xI703/T/KGEtCFH62iwx04Abd5p55KYT42EtWtwHVXRTkic6GA2wbnB+YBSqTGTTSinNo+8Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:41:54.115945Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.18931","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d851dd8982ba367818520c5fd8bda8fc7a120617b7a1aa19234dde3f3f7ada8","sha256:0e51f1bdef7f4f18f1d5e3efb7153813e3993b4d6c61db91e013363fd8fe635d"],"state_sha256":"2380a7b7326950a4c8c8230d77841088eca2e84958522b247e40165b8f72817b"}