{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:LTN7OWTO73DIMPS7XP3TXIJXCQ","short_pith_number":"pith:LTN7OWTO","schema_version":"1.0","canonical_sha256":"5cdbf75a6efec6863e5fbbf73ba1371425f6f95ea31bdef87279324486a17511","source":{"kind":"arxiv","id":"1305.1049","version":1},"attestation_state":"computed","paper":{"title":"Elasticity of cross-linked semiflexible biopolymers under tension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","cond-mat.stat-mech"],"primary_cat":"physics.bio-ph","authors_text":"Alice von der Heydt, Annette Zippelius, Daniel Wilkin, Panayotis Benetatos","submitted_at":"2013-05-05T20:03:38Z","abstract_excerpt":"Aiming at the mechanical properties of cross-linked biopolymers, we set up and analyze a model of two weakly bending wormlike chains subjected to a tensile force, with regularly spaced inter-chain bonds (cross-links) represented by harmonic springs. Within this model, we compute the force-extension curve and the differential stiffness exactly and discuss several limiting cases. Cross-links effectively stiffen the chain pair by reducing thermal fluctuations transverse to the force and alignment direction. The extra alignment due to cross-links increases both with growing number and with growing"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1305.1049","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2013-05-05T20:03:38Z","cross_cats_sorted":["cond-mat.soft","cond-mat.stat-mech"],"title_canon_sha256":"808e78b5e1efe4f6937fbc5c55f2617cdec28954a34322ea31da7746ac927d9e","abstract_canon_sha256":"696395c65a6e057d736d07fcb1fead94bfb8a7429c9b2b9a4b18cacbe92a5b62"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:49:18.312928Z","signature_b64":"3ea/c9pI6E1TKpv2G7mLf++zwxQIUt80pzDWdog/1bwHS9BjJ32eYlSlRNDlUJ+xOx6SzzeU5a3AKWOHCqSsAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cdbf75a6efec6863e5fbbf73ba1371425f6f95ea31bdef87279324486a17511","last_reissued_at":"2026-05-18T02:49:18.312240Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:49:18.312240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Elasticity of cross-linked semiflexible biopolymers under tension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","cond-mat.stat-mech"],"primary_cat":"physics.bio-ph","authors_text":"Alice von der Heydt, Annette Zippelius, Daniel Wilkin, Panayotis Benetatos","submitted_at":"2013-05-05T20:03:38Z","abstract_excerpt":"Aiming at the mechanical properties of cross-linked biopolymers, we set up and analyze a model of two weakly bending wormlike chains subjected to a tensile force, with regularly spaced inter-chain bonds (cross-links) represented by harmonic springs. Within this model, we compute the force-extension curve and the differential stiffness exactly and discuss several limiting cases. Cross-links effectively stiffen the chain pair by reducing thermal fluctuations transverse to the force and alignment direction. The extra alignment due to cross-links increases both with growing number and with growing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.1049","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1305.1049","created_at":"2026-05-18T02:49:18.312347+00:00"},{"alias_kind":"arxiv_version","alias_value":"1305.1049v1","created_at":"2026-05-18T02:49:18.312347+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.1049","created_at":"2026-05-18T02:49:18.312347+00:00"},{"alias_kind":"pith_short_12","alias_value":"LTN7OWTO73DI","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_16","alias_value":"LTN7OWTO73DIMPS7","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_8","alias_value":"LTN7OWTO","created_at":"2026-05-18T12:27:51.066281+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ","json":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ.json","graph_json":"https://pith.science/api/pith-number/LTN7OWTO73DIMPS7XP3TXIJXCQ/graph.json","events_json":"https://pith.science/api/pith-number/LTN7OWTO73DIMPS7XP3TXIJXCQ/events.json","paper":"https://pith.science/paper/LTN7OWTO"},"agent_actions":{"view_html":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ","download_json":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ.json","view_paper":"https://pith.science/paper/LTN7OWTO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1305.1049&json=true","fetch_graph":"https://pith.science/api/pith-number/LTN7OWTO73DIMPS7XP3TXIJXCQ/graph.json","fetch_events":"https://pith.science/api/pith-number/LTN7OWTO73DIMPS7XP3TXIJXCQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ/action/storage_attestation","attest_author":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ/action/author_attestation","sign_citation":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ/action/citation_signature","submit_replication":"https://pith.science/pith/LTN7OWTO73DIMPS7XP3TXIJXCQ/action/replication_record"}},"created_at":"2026-05-18T02:49:18.312347+00:00","updated_at":"2026-05-18T02:49:18.312347+00:00"}