{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:U4OWB5SGZXJWR7744VOPHZQ2Z4","short_pith_number":"pith:U4OWB5SG","schema_version":"1.0","canonical_sha256":"a71d60f646cdd368fffce55cf3e61acf3e84f052986a682cb8d3aabe40e8c16a","source":{"kind":"arxiv","id":"1903.02644","version":1},"attestation_state":"computed","paper":{"title":"Collective movement in alarmed animals groups: a simple model with positional forces and a limited attention field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.AO","q-bio.QM"],"primary_cat":"physics.bio-ph","authors_text":"A. M. Calv\\~ao, E. Brigatti","submitted_at":"2019-03-06T22:50:26Z","abstract_excerpt":"We perform a numerical analysis of a recent introduced model for describing collective movement in alarmed animals groups. This model, derived from a position-based interaction and a limited attention field, displays a non-equilibrium phase transition between a crystal-like phase, characterised by a single densely packed cluster of individuals, which occurs for small attention field angles, and a disordered phase, constituted of fragmented clusters, which emerges at large angles. The transition is quantitatively characterised, measuring its critical point and describing its scaling behaviour, "},"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":"1903.02644","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2019-03-06T22:50:26Z","cross_cats_sorted":["nlin.AO","q-bio.QM"],"title_canon_sha256":"888d96dcc0367dd50dbae85b2ffc18424f256e80ab92bab34f9ee55055fd113c","abstract_canon_sha256":"6c85b9dfc7f9fb81c212f7fb0c761414336553c38556db537fa6c9d229acb156"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:51.597364Z","signature_b64":"oAZETnyyfoUbXH4wi2XE5UG9SyNQCetqpSQICO5y+lZ5Rho0WpsbMHnkHAy7tVmIpGMwGGCdcrnKLtSN5T20Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a71d60f646cdd368fffce55cf3e61acf3e84f052986a682cb8d3aabe40e8c16a","last_reissued_at":"2026-05-17T23:51:51.596709Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:51.596709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Collective movement in alarmed animals groups: a simple model with positional forces and a limited attention field","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.AO","q-bio.QM"],"primary_cat":"physics.bio-ph","authors_text":"A. M. Calv\\~ao, E. Brigatti","submitted_at":"2019-03-06T22:50:26Z","abstract_excerpt":"We perform a numerical analysis of a recent introduced model for describing collective movement in alarmed animals groups. This model, derived from a position-based interaction and a limited attention field, displays a non-equilibrium phase transition between a crystal-like phase, characterised by a single densely packed cluster of individuals, which occurs for small attention field angles, and a disordered phase, constituted of fragmented clusters, which emerges at large angles. The transition is quantitatively characterised, measuring its critical point and describing its scaling behaviour, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02644","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":"1903.02644","created_at":"2026-05-17T23:51:51.596801+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.02644v1","created_at":"2026-05-17T23:51:51.596801+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02644","created_at":"2026-05-17T23:51:51.596801+00:00"},{"alias_kind":"pith_short_12","alias_value":"U4OWB5SGZXJW","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"U4OWB5SGZXJWR774","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"U4OWB5SG","created_at":"2026-05-18T12:33:30.264802+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/U4OWB5SGZXJWR7744VOPHZQ2Z4","json":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4.json","graph_json":"https://pith.science/api/pith-number/U4OWB5SGZXJWR7744VOPHZQ2Z4/graph.json","events_json":"https://pith.science/api/pith-number/U4OWB5SGZXJWR7744VOPHZQ2Z4/events.json","paper":"https://pith.science/paper/U4OWB5SG"},"agent_actions":{"view_html":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4","download_json":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4.json","view_paper":"https://pith.science/paper/U4OWB5SG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.02644&json=true","fetch_graph":"https://pith.science/api/pith-number/U4OWB5SGZXJWR7744VOPHZQ2Z4/graph.json","fetch_events":"https://pith.science/api/pith-number/U4OWB5SGZXJWR7744VOPHZQ2Z4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4/action/storage_attestation","attest_author":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4/action/author_attestation","sign_citation":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4/action/citation_signature","submit_replication":"https://pith.science/pith/U4OWB5SGZXJWR7744VOPHZQ2Z4/action/replication_record"}},"created_at":"2026-05-17T23:51:51.596801+00:00","updated_at":"2026-05-17T23:51:51.596801+00:00"}