{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:YKB4CFUDPORGPZRUWOONECFVUD","short_pith_number":"pith:YKB4CFUD","schema_version":"1.0","canonical_sha256":"c283c116837ba267e634b39cd208b5a0e816ac9f4482051583a755d2bd13c46c","source":{"kind":"arxiv","id":"1503.05054","version":1},"attestation_state":"computed","paper":{"title":"Optimal chemotaxis in animal cell intermittent migration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","q-bio.CB"],"primary_cat":"physics.bio-ph","authors_text":"Guillaume Salbreux, Pawel Romanczuk","submitted_at":"2015-03-17T14:02:43Z","abstract_excerpt":"Animal cells can sense chemical gradients without moving, and are faced with the challenge of migrating towards a target despite noisy information on the target position. Here we discuss optimal search strategies for a chaser that moves by switching between two phases of motion (\"run\" and \"tumble\"), reorienting itself towards the target during tumble phases, and performing a persistent random walk during run phases. We show that the chaser average run time can be adjusted to minimize the target catching time or the spatial dispersion of the chasers. We obtain analytical results for the catchin"},"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":"1503.05054","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.bio-ph","submitted_at":"2015-03-17T14:02:43Z","cross_cats_sorted":["cond-mat.soft","q-bio.CB"],"title_canon_sha256":"b2877122bf730c124a8e3f3a37a9a32adb7597541b4659aaa9bcb2ce273e83de","abstract_canon_sha256":"622a7fa616984fd6ee535ca36a035e920f0799bffba02adfd2d89caf3614222f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:20.642747Z","signature_b64":"A1dCy8QnQ5BjBLCeogHC0FMOAc0XORjYDtESMbNs7BgYHeSpb9p8y5eTBWbs5Y1ipS9ihTLJnC/hF9vGJEa3BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c283c116837ba267e634b39cd208b5a0e816ac9f4482051583a755d2bd13c46c","last_reissued_at":"2026-05-18T02:22:20.640742Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:20.640742Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Optimal chemotaxis in animal cell intermittent migration","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","q-bio.CB"],"primary_cat":"physics.bio-ph","authors_text":"Guillaume Salbreux, Pawel Romanczuk","submitted_at":"2015-03-17T14:02:43Z","abstract_excerpt":"Animal cells can sense chemical gradients without moving, and are faced with the challenge of migrating towards a target despite noisy information on the target position. Here we discuss optimal search strategies for a chaser that moves by switching between two phases of motion (\"run\" and \"tumble\"), reorienting itself towards the target during tumble phases, and performing a persistent random walk during run phases. We show that the chaser average run time can be adjusted to minimize the target catching time or the spatial dispersion of the chasers. We obtain analytical results for the catchin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05054","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":""},"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":"1503.05054","created_at":"2026-05-18T02:22:20.641983+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.05054v1","created_at":"2026-05-18T02:22:20.641983+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05054","created_at":"2026-05-18T02:22:20.641983+00:00"},{"alias_kind":"pith_short_12","alias_value":"YKB4CFUDPORG","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_16","alias_value":"YKB4CFUDPORGPZRU","created_at":"2026-05-18T12:29:50.041715+00:00"},{"alias_kind":"pith_short_8","alias_value":"YKB4CFUD","created_at":"2026-05-18T12:29:50.041715+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/YKB4CFUDPORGPZRUWOONECFVUD","json":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD.json","graph_json":"https://pith.science/api/pith-number/YKB4CFUDPORGPZRUWOONECFVUD/graph.json","events_json":"https://pith.science/api/pith-number/YKB4CFUDPORGPZRUWOONECFVUD/events.json","paper":"https://pith.science/paper/YKB4CFUD"},"agent_actions":{"view_html":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD","download_json":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD.json","view_paper":"https://pith.science/paper/YKB4CFUD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.05054&json=true","fetch_graph":"https://pith.science/api/pith-number/YKB4CFUDPORGPZRUWOONECFVUD/graph.json","fetch_events":"https://pith.science/api/pith-number/YKB4CFUDPORGPZRUWOONECFVUD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD/action/storage_attestation","attest_author":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD/action/author_attestation","sign_citation":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD/action/citation_signature","submit_replication":"https://pith.science/pith/YKB4CFUDPORGPZRUWOONECFVUD/action/replication_record"}},"created_at":"2026-05-18T02:22:20.641983+00:00","updated_at":"2026-05-18T02:22:20.641983+00:00"}