{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:G27ZQ5XVUAKWD5NL2KFJMVCOLP","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":"12a3f6238e1eccbe2f1e678615ba0ae96e5227e2fd2ac1e8cf1ad504b98047da","cross_cats_sorted":["cond-mat.mtrl-sci","math-ph","math.MP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2026-08-15T22:02:32Z","title_canon_sha256":"5e55b09692489f3aa2f9765b25bf2e2de34803d9be41064389be15cbedbb970e"},"schema_version":"1.0","source":{"id":"2608.15426","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.15426","created_at":"2026-08-18T01:15:29Z"},{"alias_kind":"arxiv_version","alias_value":"2608.15426v1","created_at":"2026-08-18T01:15:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.15426","created_at":"2026-08-18T01:15:29Z"},{"alias_kind":"pith_short_12","alias_value":"G27ZQ5XVUAKW","created_at":"2026-08-18T01:15:29Z"},{"alias_kind":"pith_short_16","alias_value":"G27ZQ5XVUAKWD5NL","created_at":"2026-08-18T01:15:29Z"},{"alias_kind":"pith_short_8","alias_value":"G27ZQ5XV","created_at":"2026-08-18T01:15:29Z"}],"graph_snapshots":[{"event_id":"sha256:916ab6a8bb77f4e6060c8d8f58048da80635bf7e9af02b2af1c3f10b3a43730d","target":"graph","created_at":"2026-08-18T01:15:29Z","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/2608.15426/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Evolving crack fields in structural health monitoring and fracture assessment must often be inferred from sparse mechanical measurements rather than dense full-field observations. We develop CNN2D--ConvGRU, a convolutional-recurrent framework for measurement-conditioned reconstruction of time-dependent phase-field brittle fracture. At each load step, the model maps a fixed-length history of phase and displacement fields and sparse current-step displacement measurements to the current full-field state. New measurements are assimilated during sequential deployment, making the framework a state-i","authors_text":"Hanfeng Zhai, Zisheng Zhang","cross_cats":["cond-mat.mtrl-sci","math-ph","math.MP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2026-08-15T22:02:32Z","title":"Scalable dynamical inference of phase-field fracture from sparse and partial measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.15426","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":"sha256:96d6b558198bffad1067ae80d2fd48dc7ee6f169fcb731279d775f00b065857b","target":"record","created_at":"2026-08-18T01:15:29Z","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":"12a3f6238e1eccbe2f1e678615ba0ae96e5227e2fd2ac1e8cf1ad504b98047da","cross_cats_sorted":["cond-mat.mtrl-sci","math-ph","math.MP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2026-08-15T22:02:32Z","title_canon_sha256":"5e55b09692489f3aa2f9765b25bf2e2de34803d9be41064389be15cbedbb970e"},"schema_version":"1.0","source":{"id":"2608.15426","kind":"arxiv","version":1}},"canonical_sha256":"36bf9876f5a01561f5abd28a96544e5bc105b881f466949e3e17c4c6d132bc31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"36bf9876f5a01561f5abd28a96544e5bc105b881f466949e3e17c4c6d132bc31","first_computed_at":"2026-08-18T01:15:29.093258Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-18T01:15:29.093258Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DxiQBjhf6c8fnvzsgn21HzuqqmxguZ6Ka46ARRaLIZY0AtP5mR6+WTui/nLLNH5HI8CPT2Ke4M5OuV+9bhjyCw==","signature_status":"signed_v1","signed_at":"2026-08-18T01:15:29.100746Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.15426","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96d6b558198bffad1067ae80d2fd48dc7ee6f169fcb731279d775f00b065857b","sha256:916ab6a8bb77f4e6060c8d8f58048da80635bf7e9af02b2af1c3f10b3a43730d"],"state_sha256":"45cb71cfae4660cc240bdb203cb09ec00dd82ece57eca66228d05887eb378e45"}