{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:6MKGMWHBYLQLHBBG2M3EP5A2OO","short_pith_number":"pith:6MKGMWHB","schema_version":"1.0","canonical_sha256":"f3146658e1c2e0b38426d33647f41a738d3164b883e4c1a8522949d7db7a3d39","source":{"kind":"arxiv","id":"1510.02966","version":1},"attestation_state":"computed","paper":{"title":"Intrusion in heterogeneous materials: Simple global rules from complex micro-mechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.flu-dyn","physics.geo-ph"],"primary_cat":"cond-mat.soft","authors_text":"Hesam Askari, Ken Kamrin","submitted_at":"2015-10-10T18:04:19Z","abstract_excerpt":"The interaction of intruding objects with deformable materials is a common phenomenon, arising in impact and penetration problems, animal and vehicle locomotion, and various geo-space applications. The dynamics of arbitrary intruders can be simplified using Resistive Force Theory (RFT), an empirical framework originally used for fluids but works surprisingly well, better in fact, in granular materials. That such a simple model describes behavior in dry grains, a complex nonlinear material, has invigorated a search to determine the underlying mechanism of RFT. We have discovered that a straight"},"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":"1510.02966","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-10-10T18:04:19Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.flu-dyn","physics.geo-ph"],"title_canon_sha256":"9a8410a77f3474e873015c5e2b0659f896a7d95535806ed0171aca48cfdb8b57","abstract_canon_sha256":"850ed220b097d6f46e09fcc91fc9792f91041ceb36845f4e6bd7925513ffcd7d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:31.004655Z","signature_b64":"wuxSiIiCRSR3UyFAmB63oiYGDuIF1t6XYebDUsGhtv54m93hat01qP/ubtdFOih5Fesb1hsgqM2Xq+pgJyW+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f3146658e1c2e0b38426d33647f41a738d3164b883e4c1a8522949d7db7a3d39","last_reissued_at":"2026-05-18T01:02:31.004036Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:31.004036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Intrusion in heterogeneous materials: Simple global rules from complex micro-mechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.flu-dyn","physics.geo-ph"],"primary_cat":"cond-mat.soft","authors_text":"Hesam Askari, Ken Kamrin","submitted_at":"2015-10-10T18:04:19Z","abstract_excerpt":"The interaction of intruding objects with deformable materials is a common phenomenon, arising in impact and penetration problems, animal and vehicle locomotion, and various geo-space applications. The dynamics of arbitrary intruders can be simplified using Resistive Force Theory (RFT), an empirical framework originally used for fluids but works surprisingly well, better in fact, in granular materials. That such a simple model describes behavior in dry grains, a complex nonlinear material, has invigorated a search to determine the underlying mechanism of RFT. We have discovered that a straight"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.02966","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":"1510.02966","created_at":"2026-05-18T01:02:31.004137+00:00"},{"alias_kind":"arxiv_version","alias_value":"1510.02966v1","created_at":"2026-05-18T01:02:31.004137+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.02966","created_at":"2026-05-18T01:02:31.004137+00:00"},{"alias_kind":"pith_short_12","alias_value":"6MKGMWHBYLQL","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"6MKGMWHBYLQLHBBG","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"6MKGMWHB","created_at":"2026-05-18T12:29:07.941421+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/6MKGMWHBYLQLHBBG2M3EP5A2OO","json":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO.json","graph_json":"https://pith.science/api/pith-number/6MKGMWHBYLQLHBBG2M3EP5A2OO/graph.json","events_json":"https://pith.science/api/pith-number/6MKGMWHBYLQLHBBG2M3EP5A2OO/events.json","paper":"https://pith.science/paper/6MKGMWHB"},"agent_actions":{"view_html":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO","download_json":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO.json","view_paper":"https://pith.science/paper/6MKGMWHB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1510.02966&json=true","fetch_graph":"https://pith.science/api/pith-number/6MKGMWHBYLQLHBBG2M3EP5A2OO/graph.json","fetch_events":"https://pith.science/api/pith-number/6MKGMWHBYLQLHBBG2M3EP5A2OO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO/action/storage_attestation","attest_author":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO/action/author_attestation","sign_citation":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO/action/citation_signature","submit_replication":"https://pith.science/pith/6MKGMWHBYLQLHBBG2M3EP5A2OO/action/replication_record"}},"created_at":"2026-05-18T01:02:31.004137+00:00","updated_at":"2026-05-18T01:02:31.004137+00:00"}