{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:VGMEWCIL62PTZSQ6GPJOBB55OT","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":"7b28d4cfdde735702a5ae83647fb72cd5c6edcbe6853cb662eace60a6c682448","cross_cats_sorted":["cond-mat.stat-mech","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-09-30T16:41:13Z","title_canon_sha256":"468ab5ac77edef552440391707c66db27f4c92e894cf7d7c223bd3e9a6abb5eb"},"schema_version":"1.0","source":{"id":"2409.20481","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.20481","created_at":"2026-07-05T09:13:44Z"},{"alias_kind":"arxiv_version","alias_value":"2409.20481v1","created_at":"2026-07-05T09:13:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.20481","created_at":"2026-07-05T09:13:44Z"},{"alias_kind":"pith_short_12","alias_value":"VGMEWCIL62PT","created_at":"2026-07-05T09:13:44Z"},{"alias_kind":"pith_short_16","alias_value":"VGMEWCIL62PTZSQ6","created_at":"2026-07-05T09:13:44Z"},{"alias_kind":"pith_short_8","alias_value":"VGMEWCIL","created_at":"2026-07-05T09:13:44Z"}],"graph_snapshots":[{"event_id":"sha256:285e712bd0fb6238a9eda71e3e4301c3f3bf058b92518b83d92a5bac40603313","target":"graph","created_at":"2026-07-05T09:13:44Z","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/2409.20481/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce and theoretically investigate a minimal particle-based model for a new class of active matter where particles exhibit directional, volume-conserving division in confinement while interacting sterically, mimicking cells in early embryogenesis. We find that complex motion, synchronized within division cycles, displays strong collective effects and becomes self-similar in the long-time limit. Introducing the method of normalized retraced trajectories, we show that the transgenerational motion caused by cell division can be mapped to a time-inhomogenous random walk with an exponential","authors_text":"Lukas Hupe, Philip Bittihn, Ramin Golestanian, Samantha R. Lish","cross_cats":["cond-mat.stat-mech","physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-09-30T16:41:13Z","title":"Isovolumetric dividing active matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.20481","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":"sha256:51c2f820304308512561110562d27c2b28d65755b639e266b13934b72daa90d1","target":"record","created_at":"2026-07-05T09:13:44Z","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":"7b28d4cfdde735702a5ae83647fb72cd5c6edcbe6853cb662eace60a6c682448","cross_cats_sorted":["cond-mat.stat-mech","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2024-09-30T16:41:13Z","title_canon_sha256":"468ab5ac77edef552440391707c66db27f4c92e894cf7d7c223bd3e9a6abb5eb"},"schema_version":"1.0","source":{"id":"2409.20481","kind":"arxiv","version":1}},"canonical_sha256":"a9984b090bf69f3cca1e33d2e087bd74d68c7c07e07b29c5a4862b823e6d31fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9984b090bf69f3cca1e33d2e087bd74d68c7c07e07b29c5a4862b823e6d31fd","first_computed_at":"2026-07-05T09:13:44.154146Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:13:44.154146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1gKhJUQRJcEzx0wFaHruFXhDUr1E0QJrqLfstq/oCdxQMszLQnac0imsMb12FgyhMV/WrTn3FUDuKWR8KZPSAg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:13:44.154608Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.20481","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51c2f820304308512561110562d27c2b28d65755b639e266b13934b72daa90d1","sha256:285e712bd0fb6238a9eda71e3e4301c3f3bf058b92518b83d92a5bac40603313"],"state_sha256":"038e5fad0497571eeebc4bc5a7c513baccfda5ca1f5d1f2755ae53a436e7d2ee"}