{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:CW2KXJ4T4B32C5KI2PHULGCMDX","short_pith_number":"pith:CW2KXJ4T","schema_version":"1.0","canonical_sha256":"15b4aba793e077a17548d3cf45984c1dfaf8f89fc8b2352431f08a114e4ffdfb","source":{"kind":"arxiv","id":"2509.09273","version":1},"attestation_state":"computed","paper":{"title":"Vortex triplets, symmetry breaking, and emergent nonequilibrium plastic crystals in an active-spinner fluid","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.stat-mech","nlin.AO","physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"Biswajit Maji, Nadia Bihari Padhan, Rahul Pandit","submitted_at":"2025-09-11T09:03:54Z","abstract_excerpt":"The formation of patterns and exotic nonequilibrium steady states in active-fluid systems continues to pose challenging problems -- theoretical, numerical, and experimental -- for statistical physicists and fluid dynamicists. We combine theoretical ideas from statistical mechanics and fluid mechanics to uncover a new type of self-assembled crystal of vortex triplets in an active-spinner fluid. We begin with the two-dimensional Cahn-Hilliard-Navier-Stokes (CHNS) model for a binary-fluid system of active rotors that has two important ingredients: a scalar order parameter field phi that distingui"},"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":"2509.09273","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2025-09-11T09:03:54Z","cross_cats_sorted":["cond-mat.stat-mech","nlin.AO","physics.bio-ph"],"title_canon_sha256":"9fdadb565f5031371792bd375ed2bc75e6a999a610556abbe15aac984bbf454f","abstract_canon_sha256":"830648c9c67c03623e496ccdacc13aa01213162476616ef2923ca879ce1b12d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:09:32.915016Z","signature_b64":"WBS9heNefb3n261bB/eJ/MBQoq/jSDNZULWzNnNJOv8lRkGqNDuuByDMYQxPU5AkyFsM7KvxzuuFDWObQBfaDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15b4aba793e077a17548d3cf45984c1dfaf8f89fc8b2352431f08a114e4ffdfb","last_reissued_at":"2026-07-05T12:09:32.914549Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:09:32.914549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Vortex triplets, symmetry breaking, and emergent nonequilibrium plastic crystals in an active-spinner fluid","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.stat-mech","nlin.AO","physics.bio-ph"],"primary_cat":"cond-mat.soft","authors_text":"Biswajit Maji, Nadia Bihari Padhan, Rahul Pandit","submitted_at":"2025-09-11T09:03:54Z","abstract_excerpt":"The formation of patterns and exotic nonequilibrium steady states in active-fluid systems continues to pose challenging problems -- theoretical, numerical, and experimental -- for statistical physicists and fluid dynamicists. We combine theoretical ideas from statistical mechanics and fluid mechanics to uncover a new type of self-assembled crystal of vortex triplets in an active-spinner fluid. We begin with the two-dimensional Cahn-Hilliard-Navier-Stokes (CHNS) model for a binary-fluid system of active rotors that has two important ingredients: a scalar order parameter field phi that distingui"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.09273","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.09273/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2509.09273","created_at":"2026-07-05T12:09:32.914614+00:00"},{"alias_kind":"arxiv_version","alias_value":"2509.09273v1","created_at":"2026-07-05T12:09:32.914614+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.09273","created_at":"2026-07-05T12:09:32.914614+00:00"},{"alias_kind":"pith_short_12","alias_value":"CW2KXJ4T4B32","created_at":"2026-07-05T12:09:32.914614+00:00"},{"alias_kind":"pith_short_16","alias_value":"CW2KXJ4T4B32C5KI","created_at":"2026-07-05T12:09:32.914614+00:00"},{"alias_kind":"pith_short_8","alias_value":"CW2KXJ4T","created_at":"2026-07-05T12:09:32.914614+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/CW2KXJ4T4B32C5KI2PHULGCMDX","json":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX.json","graph_json":"https://pith.science/api/pith-number/CW2KXJ4T4B32C5KI2PHULGCMDX/graph.json","events_json":"https://pith.science/api/pith-number/CW2KXJ4T4B32C5KI2PHULGCMDX/events.json","paper":"https://pith.science/paper/CW2KXJ4T"},"agent_actions":{"view_html":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX","download_json":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX.json","view_paper":"https://pith.science/paper/CW2KXJ4T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2509.09273&json=true","fetch_graph":"https://pith.science/api/pith-number/CW2KXJ4T4B32C5KI2PHULGCMDX/graph.json","fetch_events":"https://pith.science/api/pith-number/CW2KXJ4T4B32C5KI2PHULGCMDX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX/action/storage_attestation","attest_author":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX/action/author_attestation","sign_citation":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX/action/citation_signature","submit_replication":"https://pith.science/pith/CW2KXJ4T4B32C5KI2PHULGCMDX/action/replication_record"}},"created_at":"2026-07-05T12:09:32.914614+00:00","updated_at":"2026-07-05T12:09:32.914614+00:00"}