{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ZFQBAARHAWG2DYQTPV32JYVNVA","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":"2419c5e4423ac710bf6cff8adaa204528b06c7bb25945a322308f8eee93b89a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-02-07T08:56:38Z","title_canon_sha256":"e693ce0e26ec4e9a8317d4303ca68d80a401cb474dac361838121b2b35dcbe0d"},"schema_version":"1.0","source":{"id":"1302.1673","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.1673","created_at":"2026-05-18T01:51:49Z"},{"alias_kind":"arxiv_version","alias_value":"1302.1673v2","created_at":"2026-05-18T01:51:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.1673","created_at":"2026-05-18T01:51:49Z"},{"alias_kind":"pith_short_12","alias_value":"ZFQBAARHAWG2","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_16","alias_value":"ZFQBAARHAWG2DYQT","created_at":"2026-05-18T12:28:09Z"},{"alias_kind":"pith_short_8","alias_value":"ZFQBAARH","created_at":"2026-05-18T12:28:09Z"}],"graph_snapshots":[{"event_id":"sha256:dce1f3f4e0085c4360265c9932af94237dede8978a12fcf2cdc070a2a3e196c3","target":"graph","created_at":"2026-05-18T01:51:49Z","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":"The closure of long equilibrated denaturation bubbles in DNA is studied using Brownian dynamics simulations. A minimal mesoscopic model is used where the double-helix is made of two interacting bead-spring freely rotating strands, with a non-zero torsional modulus in the duplex state, $\\kappa_\\phi=$200 to 300 kT. For DNAs of lengths N=40 to 100 base-pairs (bps) with a large initial bubble in their middle, long closure times of 0.1 to 100 microseconds are found. The bubble starts winding from both ends until it reaches a 10 bp metastable state. The final closure is limited by three competing me","authors_text":"Anil Kumar Dasanna, John Palmeri, Manoel Manghi, Nicolas Destainville","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-02-07T08:56:38Z","title":"Slow closure of denaturation bubbles in DNA: twist matters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.1673","kind":"arxiv","version":2},"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:fceeac70cd6c2c3234ec4edaab5d00529559b3567d4c3a13a7b2ac6af512bca1","target":"record","created_at":"2026-05-18T01:51:49Z","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":"2419c5e4423ac710bf6cff8adaa204528b06c7bb25945a322308f8eee93b89a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-02-07T08:56:38Z","title_canon_sha256":"e693ce0e26ec4e9a8317d4303ca68d80a401cb474dac361838121b2b35dcbe0d"},"schema_version":"1.0","source":{"id":"1302.1673","kind":"arxiv","version":2}},"canonical_sha256":"c960100227058da1e2137d77a4e2ada83ffc0f3a1a18a8873c3227c4a435230e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c960100227058da1e2137d77a4e2ada83ffc0f3a1a18a8873c3227c4a435230e","first_computed_at":"2026-05-18T01:51:49.508359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:49.508359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YKi/I3QmMpUpB1eu/jwCfYM8VUeMvc0B4GreRsw2uHAOxfi9doPi8qc5zUz4i090u9cqPkqpqGTY7NPa0cHdDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:49.509034Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.1673","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fceeac70cd6c2c3234ec4edaab5d00529559b3567d4c3a13a7b2ac6af512bca1","sha256:dce1f3f4e0085c4360265c9932af94237dede8978a12fcf2cdc070a2a3e196c3"],"state_sha256":"738a857c514da855175abe9f715c013c3b4a21a0932d177e814972c832fda641"}