{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RTLAIZ65GYPWUXHFQB5FSCQME6","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":"9bd00526b9fa4c28bfe7007b25775eb843bf508fc4b64413455b0435aa74361b","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-05-24T11:53:57Z","title_canon_sha256":"18d1650a3a30a9c51598fa14688684f993ad5e1b3f32c0d38ab70acfa8c466d6"},"schema_version":"1.0","source":{"id":"1705.08713","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08713","created_at":"2026-05-18T00:11:43Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08713v4","created_at":"2026-05-18T00:11:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08713","created_at":"2026-05-18T00:11:43Z"},{"alias_kind":"pith_short_12","alias_value":"RTLAIZ65GYPW","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RTLAIZ65GYPWUXHF","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RTLAIZ65","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:a2e247282945a8fc3b3012564ab395d76556f2d248b487550bf1749652e41bae","target":"graph","created_at":"2026-05-18T00:11:43Z","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":"Fish, birds, insects and robots frequently swim or fly in groups. During their 3 dimensional collective motion, these agents do not stop, they avoid collisions by strong short-range repulsion, and achieve group cohesion by weak long-range attraction. In a minimal model that is isotropic, and continuous in both space and time, we demonstrate that (i) adjusting speed to a preferred value, combined with (ii) radial repulsion and an (iii) effective long-range attraction are sufficient for the stable ordering of autonomously moving agents in space. Our results imply that beyond these three rules or","authors_text":"Illes J. Farkas, Shuo-Hong Wang","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-05-24T11:53:57Z","title":"Spatial flocking: Control by speed, distance, noise and delay"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08713","kind":"arxiv","version":4},"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:a6fddf1798103b192f57160c6c03422bd1fa0680bde07e2676689c48bf05a155","target":"record","created_at":"2026-05-18T00:11:43Z","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":"9bd00526b9fa4c28bfe7007b25775eb843bf508fc4b64413455b0435aa74361b","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2017-05-24T11:53:57Z","title_canon_sha256":"18d1650a3a30a9c51598fa14688684f993ad5e1b3f32c0d38ab70acfa8c466d6"},"schema_version":"1.0","source":{"id":"1705.08713","kind":"arxiv","version":4}},"canonical_sha256":"8cd60467dd361f6a5ce5807a590a0c27a13bd89ca421967d9169cbcda9d4779f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8cd60467dd361f6a5ce5807a590a0c27a13bd89ca421967d9169cbcda9d4779f","first_computed_at":"2026-05-18T00:11:43.562066Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:43.562066Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hJkRbGSR2Zf0AZo9TPKwiqO+mrfdRt9DnPsseE63nHCaWPVp+JJEq4F1Kk4aY9TN5oCb96+7PwQMIH4YnzKUBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:43.562801Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.08713","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6fddf1798103b192f57160c6c03422bd1fa0680bde07e2676689c48bf05a155","sha256:a2e247282945a8fc3b3012564ab395d76556f2d248b487550bf1749652e41bae"],"state_sha256":"919d397e8de9450a064fc2935f65c7d95fdf672955c915dfd1d2c648c0c9a224"}