{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:C3GHNRRK7C2RG2BFG3VTHGXYE6","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":"ba34a621ccd9ba4dbc15cea164b360d03089fc6eea7b497866eb0ce5de1dcfe6","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-11-06T00:15:17Z","title_canon_sha256":"a109e1a6468d5d595579dcb4f2e9f1b60567bf38a8b054de797864f520cb7360"},"schema_version":"1.0","source":{"id":"1311.1256","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1256","created_at":"2026-05-18T02:47:52Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1256v2","created_at":"2026-05-18T02:47:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1256","created_at":"2026-05-18T02:47:52Z"},{"alias_kind":"pith_short_12","alias_value":"C3GHNRRK7C2R","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"C3GHNRRK7C2RG2BF","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"C3GHNRRK","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:df0dae7196ab38b4f6ba4b9fc1a94e21c286faa3ec178fe3e513b597dc63915e","target":"graph","created_at":"2026-05-18T02:47:52Z","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":"Recent theories predict phase separation among orientationally disordered active particles whose propulsion speed decreases rapidly enough with density. Coarse-grained models of this process show time-reversal symmetry (detailed balance) to be restored for uniform states, but broken by gradient terms; hence detailed-balance violation is strongly coupled to interfacial phenomena. To explore the subtle generic physics resulting from such coupling we here introduce `Active Model B'. This is a scalar $\\phi^4$ field theory (or phase-field model) that minimally violates detailed balance via a leadin","authors_text":"Adriano Tiribocchi, Davide Marenduzzo, Joakim Stenhammar, Michael E. Cates, Raphael Wittkowski, Rosalind J. Allen","cross_cats":["physics.bio-ph","physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-11-06T00:15:17Z","title":"Scalar $\\phi^4$ field theory for active-particle phase separation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1256","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:b661e6a59ebef90a8cd4b08895339cf6e75fbe880e3ec12c3c06385bdbaac828","target":"record","created_at":"2026-05-18T02:47:52Z","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":"ba34a621ccd9ba4dbc15cea164b360d03089fc6eea7b497866eb0ce5de1dcfe6","cross_cats_sorted":["physics.bio-ph","physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-11-06T00:15:17Z","title_canon_sha256":"a109e1a6468d5d595579dcb4f2e9f1b60567bf38a8b054de797864f520cb7360"},"schema_version":"1.0","source":{"id":"1311.1256","kind":"arxiv","version":2}},"canonical_sha256":"16cc76c62af8b513682536eb339af8278d789f1cef00be6073275b929813699e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16cc76c62af8b513682536eb339af8278d789f1cef00be6073275b929813699e","first_computed_at":"2026-05-18T02:47:52.884500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:52.884500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yklAIfgOwKTZfc2tAvLWhsadvklvZmTtshmLxH9m9iSNJEghO2Tc9qj/kYWOKdDfm+iX1R684SQR9pfpdGQABA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:52.884940Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1256","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b661e6a59ebef90a8cd4b08895339cf6e75fbe880e3ec12c3c06385bdbaac828","sha256:df0dae7196ab38b4f6ba4b9fc1a94e21c286faa3ec178fe3e513b597dc63915e"],"state_sha256":"41ee683a2d8ee18b88bb86f4cd38ae3a58c4a0a27522defe7045b2dd01d772db"}