{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:D3DKRYDE6F3X7GFDV46BXG2APG","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":"4b186f0c73eb070bb868fb6a155bb322b990d13ff560f949ff85253e8ea9de86","cross_cats_sorted":["cond-mat.soft","q-bio.SC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-02-12T14:14:49Z","title_canon_sha256":"41fcb5b8ccd80200c6d6d49d96683b1454aa8b89aaf42a3d8c266449c1cc9a0c"},"schema_version":"1.0","source":{"id":"1302.2798","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.2798","created_at":"2026-05-18T01:51:42Z"},{"alias_kind":"arxiv_version","alias_value":"1302.2798v1","created_at":"2026-05-18T01:51:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.2798","created_at":"2026-05-18T01:51:42Z"},{"alias_kind":"pith_short_12","alias_value":"D3DKRYDE6F3X","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"D3DKRYDE6F3X7GFD","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"D3DKRYDE","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:6025bfbe0a464d07d9888beba6b6fcbe481fc09efe00e0efa11b642a6d5ce745","target":"graph","created_at":"2026-05-18T01:51:42Z","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"},"paper":{"abstract_excerpt":"Living systems often exhibit internal driving: active, molecular processes drive nonequilibrium phenomena such as metabolism or migration. Active gels constitute a fascinating class of internally driven matter, where molecular motors exert localized stresses inside polymer networks. There is evidence that network crosslinking is required to allow motors to induce macroscopic contraction. Yet a quantitative understanding of how network connectivity enables contraction is lacking. Here we show experimentally that myosin motors contract crosslinked actin polymer networks to clusters with a scale-","authors_text":"Abhinav Sharma, Fred C. MacKintosh, Gijsje H. Koenderink, Jose Alvarado, Michael Sheinman","cross_cats":["cond-mat.soft","q-bio.SC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-02-12T14:14:49Z","title":"Molecular motors robustly drive active gels to a critically connected state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.2798","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":"sha256:6563fdafd5b4e72fc51ff4dc18483080f979479859829951af0740f9ba719569","target":"record","created_at":"2026-05-18T01:51:42Z","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":"4b186f0c73eb070bb868fb6a155bb322b990d13ff560f949ff85253e8ea9de86","cross_cats_sorted":["cond-mat.soft","q-bio.SC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-02-12T14:14:49Z","title_canon_sha256":"41fcb5b8ccd80200c6d6d49d96683b1454aa8b89aaf42a3d8c266449c1cc9a0c"},"schema_version":"1.0","source":{"id":"1302.2798","kind":"arxiv","version":1}},"canonical_sha256":"1ec6a8e064f1777f98a3af3c1b9b407981d3c30914731fa96548ea5598ce4823","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ec6a8e064f1777f98a3af3c1b9b407981d3c30914731fa96548ea5598ce4823","first_computed_at":"2026-05-18T01:51:42.221356Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:42.221356Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yZiJyohxDRhX9tYD/F/OrqvCoIcd5wIBFzvENOVj8LAmzqzJqIGMD7bSUnvT9yO4gZc4SOri2QE6YFPuqE1eCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:42.222074Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.2798","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6563fdafd5b4e72fc51ff4dc18483080f979479859829951af0740f9ba719569","sha256:6025bfbe0a464d07d9888beba6b6fcbe481fc09efe00e0efa11b642a6d5ce745"],"state_sha256":"b37fa91b872fa21de21f9681e37fcf71e6ad995b8efb63a5613e1556eda0bad7"}