{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PELTHINYL2GEBYJO74R4WOQRAA","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":"3ba0a815677e636afebcf53f730558cd03ca1c659b8322f0fb55683f2d65fad5","cross_cats_sorted":["physics.bio-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-09T16:39:47Z","title_canon_sha256":"7ef7abc8a55d7a7aa723ee0eda48f5edb6dddc7b8f64d1b1a322b6f7f67db1d5"},"schema_version":"1.0","source":{"id":"2606.11080","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.11080","created_at":"2026-06-10T01:11:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.11080v1","created_at":"2026-06-10T01:11:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.11080","created_at":"2026-06-10T01:11:08Z"},{"alias_kind":"pith_short_12","alias_value":"PELTHINYL2GE","created_at":"2026-06-10T01:11:08Z"},{"alias_kind":"pith_short_16","alias_value":"PELTHINYL2GEBYJO","created_at":"2026-06-10T01:11:08Z"},{"alias_kind":"pith_short_8","alias_value":"PELTHINY","created_at":"2026-06-10T01:11:08Z"}],"graph_snapshots":[{"event_id":"sha256:2da01be49893b74dcc5e10d7e97103c6e116607f48d007807cd7b4b04df93128","target":"graph","created_at":"2026-06-10T01:11:08Z","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/2606.11080/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"How can a growing biological filament remain straight despite stochastic fluctuations in growth? Motivated by filamentary structures that develop reproducibly across biological systems, we study the stability of a noisy, growing elastic filament regulated by feedback. We formulate a minimal model in which growth responds to the filament's strain, curvature, and orientation through local or nonlocal spatiotemporal feedback laws. Linear stability analysis identifies the conditions under which these feedback mechanisms stabilize a straight configuration. In the presence of noise, we show that pur","authors_text":"L. Mahadevan, Ludwig A. Hoffmann","cross_cats":["physics.bio-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-09T16:39:47Z","title":"How to grow a straight filament"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.11080","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":"sha256:5c56e3f1d64d27663e9b516442bcbf9fc1cc5617c73bdfb1c3291ec04e198191","target":"record","created_at":"2026-06-10T01:11:08Z","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":"3ba0a815677e636afebcf53f730558cd03ca1c659b8322f0fb55683f2d65fad5","cross_cats_sorted":["physics.bio-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-06-09T16:39:47Z","title_canon_sha256":"7ef7abc8a55d7a7aa723ee0eda48f5edb6dddc7b8f64d1b1a322b6f7f67db1d5"},"schema_version":"1.0","source":{"id":"2606.11080","kind":"arxiv","version":1}},"canonical_sha256":"791733a1b85e8c40e12eff23cb3a11000369e8bd5b9d43a5a00942635ae65f7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"791733a1b85e8c40e12eff23cb3a11000369e8bd5b9d43a5a00942635ae65f7e","first_computed_at":"2026-06-10T01:11:08.983257Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:11:08.983257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ivPSK7lWuiXqjVYgaiR2aURYiuZhs66UDF2IGcs+ZY/HN1o+6YxevhDniZndDCIWcDUScWc1we7C80gHQpDFBw==","signature_status":"signed_v1","signed_at":"2026-06-10T01:11:08.984162Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.11080","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c56e3f1d64d27663e9b516442bcbf9fc1cc5617c73bdfb1c3291ec04e198191","sha256:2da01be49893b74dcc5e10d7e97103c6e116607f48d007807cd7b4b04df93128"],"state_sha256":"dadf28e6a629f02ae078d6b685e7f2db8ee5f6701130c3c9ada4626fe4ac812a"}