{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:TESCQTQZDE4XBT76CW4MDD2267","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":"1ad847ce8f741f51aab0e12c4b23eae402a34b46cc60cd1d384e60152aa8ea0d","cross_cats_sorted":["q-bio.PE"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-05-28T08:05:14Z","title_canon_sha256":"e0cd62b7670f899a16c001bf0c1bc908f313fc4967882a9dcc014a81d0a78446"},"schema_version":"1.0","source":{"id":"1405.7149","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.7149","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"arxiv_version","alias_value":"1405.7149v2","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.7149","created_at":"2026-05-18T01:32:43Z"},{"alias_kind":"pith_short_12","alias_value":"TESCQTQZDE4X","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TESCQTQZDE4XBT76","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TESCQTQZ","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:a8d08474db780bcf1239ceeb9960eac87977a712de8a6db14e21ee0e884fb9ce","target":"graph","created_at":"2026-05-18T01:32:43Z","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 nature of the phase transition in a system of self-propelling particles has been extensively studied during the last few decades. A theoretical model was proposed by T. Vicsek, {\\it et. al.} [Phys. Rev. Lett. {\\bf 75}, 1226 (1995)] with a simple rule for updating the direction of motion of each particle. Based on the Vicsek's model (VM) [1], in this work, we consider a group of animals as particles moving freely on a two-dimensional space. Due to the fact that the viewable area of animals depends on the species, we consider the motion of each individual within an angle $\\varphi=\\Phi/2$ ($\\","authors_text":"P. The Nguyen, Sang-Hee Lee, V. Thanh Ngo","cross_cats":["q-bio.PE"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-05-28T08:05:14Z","title":"Effect of Vision Angle on the Phase Transition in a Flocking Behavior of Animal Groups"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.7149","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:aab7561f5040c9b898f2ef34983b6d26bd0ff9fe086b5bf936cbcaa524b76792","target":"record","created_at":"2026-05-18T01:32:43Z","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":"1ad847ce8f741f51aab0e12c4b23eae402a34b46cc60cd1d384e60152aa8ea0d","cross_cats_sorted":["q-bio.PE"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.bio-ph","submitted_at":"2014-05-28T08:05:14Z","title_canon_sha256":"e0cd62b7670f899a16c001bf0c1bc908f313fc4967882a9dcc014a81d0a78446"},"schema_version":"1.0","source":{"id":"1405.7149","kind":"arxiv","version":2}},"canonical_sha256":"9924284e19193970cffe15b8c18f5af7ebbb1e1b56d4d0d398b5bddf726bb35f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9924284e19193970cffe15b8c18f5af7ebbb1e1b56d4d0d398b5bddf726bb35f","first_computed_at":"2026-05-18T01:32:43.824994Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:43.824994Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N6J9pQAbMSvVgantu9+Z/maQQ0SMWQLAdQ30g0z2l4ehyhxMHXJadynbH+SkXfhj5OoTrFT6iSXzuvqBJZ5ZCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:43.825667Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.7149","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aab7561f5040c9b898f2ef34983b6d26bd0ff9fe086b5bf936cbcaa524b76792","sha256:a8d08474db780bcf1239ceeb9960eac87977a712de8a6db14e21ee0e884fb9ce"],"state_sha256":"ef18493638f94755415bf565173df4f173d05cfa0720554df66f66f2721d9ae5"}