{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:SJLEVXVEZ2EVNMDA2MFLLUFK62","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":"446ce39ee4d2ef3447d6745ca07e70aa0a8e104208d2602591692cb201b17725","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-21T18:55:53Z","title_canon_sha256":"c1843907ff3a2d0356d59974b9c4ae1f4136f351027b657f36a5e1e1cc2d7e42"},"schema_version":"1.0","source":{"id":"2505.15942","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.15942","created_at":"2026-07-05T11:07:27Z"},{"alias_kind":"arxiv_version","alias_value":"2505.15942v1","created_at":"2026-07-05T11:07:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.15942","created_at":"2026-07-05T11:07:27Z"},{"alias_kind":"pith_short_12","alias_value":"SJLEVXVEZ2EV","created_at":"2026-07-05T11:07:27Z"},{"alias_kind":"pith_short_16","alias_value":"SJLEVXVEZ2EVNMDA","created_at":"2026-07-05T11:07:27Z"},{"alias_kind":"pith_short_8","alias_value":"SJLEVXVE","created_at":"2026-07-05T11:07:27Z"}],"graph_snapshots":[{"event_id":"sha256:c30daa33d7cd32573ea7e31efcdf477fe0c8d8c41e95e8bfc6f9f92786afcf09","target":"graph","created_at":"2026-07-05T11:07:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2505.15942/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"When groups of inertial swimmers move together, hydrodynamic interactions play a key role in shaping their collective dynamics, including the cohesion of the group. To explore how these interactions influence group cohesion, we develop a three-dimensional, inviscid, far-field model of a swimmer. Focusing on symmetric triangular, diamond, and circular group arrangements, we investigate whether passive hydrodynamics alone can promote cohesive behavior, and what role symmetry of the group plays. While small symmetric (and even asymmetric) groups can be cohesive, larger groups typically are not, i","authors_text":"Daniel Floryan, Mohamed Niged Mabrouk","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-21T18:55:53Z","title":"Effects of symmetry and hydrodynamics on the cohesion of groups of swimmers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.15942","kind":"arxiv","version":1},"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":"sha256:06e5e2ee3c05dc0292d2739ec565554ad79e544393cb73f19fd1aaea5d4bc5f5","target":"record","created_at":"2026-07-05T11:07:27Z","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":"446ce39ee4d2ef3447d6745ca07e70aa0a8e104208d2602591692cb201b17725","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-05-21T18:55:53Z","title_canon_sha256":"c1843907ff3a2d0356d59974b9c4ae1f4136f351027b657f36a5e1e1cc2d7e42"},"schema_version":"1.0","source":{"id":"2505.15942","kind":"arxiv","version":1}},"canonical_sha256":"92564adea4ce8956b060d30ab5d0aaf6816b1cae56d90a410a87f5e61fde4f35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92564adea4ce8956b060d30ab5d0aaf6816b1cae56d90a410a87f5e61fde4f35","first_computed_at":"2026-07-05T11:07:27.623156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:07:27.623156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DJFQznqkyA3UWMId/mp2egEqFDFsWidwTOEZkaNIp0f2Qmt29foqvuuLtxYOPshHao5FpCL6FloJCmmAjQpkAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:07:27.623656Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.15942","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06e5e2ee3c05dc0292d2739ec565554ad79e544393cb73f19fd1aaea5d4bc5f5","sha256:c30daa33d7cd32573ea7e31efcdf477fe0c8d8c41e95e8bfc6f9f92786afcf09"],"state_sha256":"4ab06390b05030dd7df2f5addb0066af81aa2ed73690fc38fe68fdaae7295939"}