{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:J7BWVRSGDLUO6MLIUBSM5VNX2E","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":"8d9564fbdd45e3eb0cd236a75653a2be7727c2a0c35a55f2aee8bf2c44247548","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":"2017-09-14T20:09:20Z","title_canon_sha256":"cbe9bfa8fdac909593dc0c1f6bbd53186daecfe214563d7c501975b9e74f6bcc"},"schema_version":"1.0","source":{"id":"1709.04961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04961","created_at":"2026-05-18T00:26:14Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04961v1","created_at":"2026-05-18T00:26:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04961","created_at":"2026-05-18T00:26:14Z"},{"alias_kind":"pith_short_12","alias_value":"J7BWVRSGDLUO","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"J7BWVRSGDLUO6MLI","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"J7BWVRSG","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:ec7c72886729fa52a4c6391beddbff871a174782ac38b4b29c7e4885d81597c9","target":"graph","created_at":"2026-05-18T00:26:14Z","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":"Achieving control and tunability of lyotropic materials has been a long-standing goal of liquid crystal research. Here we show that the elasticity of a liquid crystal system consisting of a dense suspension of semiflexible biopolymers can be manipulated over a relatively wide range of elastic moduli. Specifically, thin films of actin filaments are assembled at an oil-water interface. At sufficiently high concentrations, one observes the formation of a nematic phase riddled with $\\pm1/2$ topological defects, characteristic of a two-dimensional nematic system. As the average filament length incr","authors_text":"Jennifer Ross, Juan J. de Pablo, Margaret L. Gardel, Nitin Kumar, Rui Zhang","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":"2017-09-14T20:09:20Z","title":"Interplay of Structure, Elasticity and Dynamics in Actin-Based Nematic Materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04961","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":"sha256:9cb861bce0588fffb04f2dffe8f0c5dffac672ab962717739ec15db7914711b1","target":"record","created_at":"2026-05-18T00:26:14Z","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":"8d9564fbdd45e3eb0cd236a75653a2be7727c2a0c35a55f2aee8bf2c44247548","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":"2017-09-14T20:09:20Z","title_canon_sha256":"cbe9bfa8fdac909593dc0c1f6bbd53186daecfe214563d7c501975b9e74f6bcc"},"schema_version":"1.0","source":{"id":"1709.04961","kind":"arxiv","version":1}},"canonical_sha256":"4fc36ac6461ae8ef3168a064ced5b7d13965adc219c56265e46ba8a10a8bb5cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fc36ac6461ae8ef3168a064ced5b7d13965adc219c56265e46ba8a10a8bb5cf","first_computed_at":"2026-05-18T00:26:14.463987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:14.463987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wNxk20+8kM3zan7k4DRrshp52xCg/FzGN6qxowqk6AVs5ir//6ybgf3LKyS7OVroAr5jpd7Hr7IVcOJQ0lxiAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:14.464498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9cb861bce0588fffb04f2dffe8f0c5dffac672ab962717739ec15db7914711b1","sha256:ec7c72886729fa52a4c6391beddbff871a174782ac38b4b29c7e4885d81597c9"],"state_sha256":"084e0485714eb65ff04c2bccc315dac4ef7a22ce31e7cd660178e2d912e84c28"}