{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:EIJ7LO64IONWTMKWMQRAZC6GJX","short_pith_number":"pith:EIJ7LO64","schema_version":"1.0","canonical_sha256":"2213f5bbdc439b69b15664220c8bc64dc07f9b3c7168fc175f6f8b040f70ed67","source":{"kind":"arxiv","id":"2607.02445","version":1},"attestation_state":"computed","paper":{"title":"Curvature-induced host-mediated polarization of active particles","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"D. A. Matoz-Fernandez, Giulia Janzen","submitted_at":"2026-07-02T17:15:25Z","abstract_excerpt":"Polar collective motion commonly arises from alignment interactions, particle anisotropy, or an imposed directional bias. Here we identify a distinct route to polar order that does not rely on alignment interactions between the active particles. We show that non-aligning active Brownian particles embedded in a dense passive medium can develop polar coherence when confined to a compact curved surface. Persistent active motion redistributes stress through the host and creates passive-depleted regions. When the stress-spreading length becomes comparable to the sphere radius, these regions merge i"},"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":"2607.02445","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.soft","submitted_at":"2026-07-02T17:15:25Z","cross_cats_sorted":[],"title_canon_sha256":"06c6e61ab81b8bf516839e74cf612e259ea539736221d8185f22067ad53bbd61","abstract_canon_sha256":"ceaa73ad87bbaa294deaf7bcb9ad4664e08d6895d8adbd66372bf015b0f1aa2d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-03T01:17:59.409119Z","signature_b64":"GwTSvpKYfkBiZoTbIXrwYwoWk5yCQsXaRlc3ls2ge8bF8aT4ZbeOFt3K2T3XDrgDhlrVaVNOjrsjGsXRTV8pAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2213f5bbdc439b69b15664220c8bc64dc07f9b3c7168fc175f6f8b040f70ed67","last_reissued_at":"2026-07-03T01:17:59.408724Z","signature_status":"signed_v1","first_computed_at":"2026-07-03T01:17:59.408724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Curvature-induced host-mediated polarization of active particles","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"D. A. Matoz-Fernandez, Giulia Janzen","submitted_at":"2026-07-02T17:15:25Z","abstract_excerpt":"Polar collective motion commonly arises from alignment interactions, particle anisotropy, or an imposed directional bias. Here we identify a distinct route to polar order that does not rely on alignment interactions between the active particles. We show that non-aligning active Brownian particles embedded in a dense passive medium can develop polar coherence when confined to a compact curved surface. Persistent active motion redistributes stress through the host and creates passive-depleted regions. When the stress-spreading length becomes comparable to the sphere radius, these regions merge i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.02445","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/2607.02445/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":"2607.02445","created_at":"2026-07-03T01:17:59.408791+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.02445v1","created_at":"2026-07-03T01:17:59.408791+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.02445","created_at":"2026-07-03T01:17:59.408791+00:00"},{"alias_kind":"pith_short_12","alias_value":"EIJ7LO64IONW","created_at":"2026-07-03T01:17:59.408791+00:00"},{"alias_kind":"pith_short_16","alias_value":"EIJ7LO64IONWTMKW","created_at":"2026-07-03T01:17:59.408791+00:00"},{"alias_kind":"pith_short_8","alias_value":"EIJ7LO64","created_at":"2026-07-03T01:17:59.408791+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/EIJ7LO64IONWTMKWMQRAZC6GJX","json":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX.json","graph_json":"https://pith.science/api/pith-number/EIJ7LO64IONWTMKWMQRAZC6GJX/graph.json","events_json":"https://pith.science/api/pith-number/EIJ7LO64IONWTMKWMQRAZC6GJX/events.json","paper":"https://pith.science/paper/EIJ7LO64"},"agent_actions":{"view_html":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX","download_json":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX.json","view_paper":"https://pith.science/paper/EIJ7LO64","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.02445&json=true","fetch_graph":"https://pith.science/api/pith-number/EIJ7LO64IONWTMKWMQRAZC6GJX/graph.json","fetch_events":"https://pith.science/api/pith-number/EIJ7LO64IONWTMKWMQRAZC6GJX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX/action/storage_attestation","attest_author":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX/action/author_attestation","sign_citation":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX/action/citation_signature","submit_replication":"https://pith.science/pith/EIJ7LO64IONWTMKWMQRAZC6GJX/action/replication_record"}},"created_at":"2026-07-03T01:17:59.408791+00:00","updated_at":"2026-07-03T01:17:59.408791+00:00"}