{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:5OKPEEYE5HMKF76WWWYTGM5BNH","short_pith_number":"pith:5OKPEEYE","schema_version":"1.0","canonical_sha256":"eb94f21304e9d8a2ffd6b5b13333a169d6e43ecffc5471fde8a82e7fbfa0a63d","source":{"kind":"arxiv","id":"1307.5372","version":2},"attestation_state":"computed","paper":{"title":"A Particle-Water Based Model for Water Retention Hysteresis","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Federico Maggi, Giuseppe Buscarnera, Itai Einav, Yixiang Gan","submitted_at":"2013-07-20T05:45:01Z","abstract_excerpt":"A particle-water discrete element based approach to describe water movement in partially saturated granular media is presented and tested. Water potential is governed by both capillary bridges, dominant at low saturations, and the pressure of entrapped air, dominant at high saturations. The approach captures the hysteresis of water retention during wetting and drainage by introducing the local evolution of liquid-solid contact angles at the level of pores and grains. Extensive comparisons against experimental data are presented. While these are made without the involvement of any fitting param"},"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":"1307.5372","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.soft","submitted_at":"2013-07-20T05:45:01Z","cross_cats_sorted":[],"title_canon_sha256":"e176de081823373cc9030c3d2c227a50a8dc5955462bef15ff40dce88aa10a29","abstract_canon_sha256":"6b5353f819ab95c6e07963be19a972c0ce640538987b6d42993ead825972e4c4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:05:35.471801Z","signature_b64":"vsTOPxdwz8kmgG5LTiHwsRxAoaeZUQG2n4pkXRoiZYWRe7oW6ezKDM/ttHzX9bXGK29e00VsmBikNlpbl7AzBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb94f21304e9d8a2ffd6b5b13333a169d6e43ecffc5471fde8a82e7fbfa0a63d","last_reissued_at":"2026-05-18T03:05:35.471337Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:05:35.471337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Particle-Water Based Model for Water Retention Hysteresis","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Federico Maggi, Giuseppe Buscarnera, Itai Einav, Yixiang Gan","submitted_at":"2013-07-20T05:45:01Z","abstract_excerpt":"A particle-water discrete element based approach to describe water movement in partially saturated granular media is presented and tested. Water potential is governed by both capillary bridges, dominant at low saturations, and the pressure of entrapped air, dominant at high saturations. The approach captures the hysteresis of water retention during wetting and drainage by introducing the local evolution of liquid-solid contact angles at the level of pores and grains. Extensive comparisons against experimental data are presented. While these are made without the involvement of any fitting param"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5372","kind":"arxiv","version":2},"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":"1307.5372","created_at":"2026-05-18T03:05:35.471426+00:00"},{"alias_kind":"arxiv_version","alias_value":"1307.5372v2","created_at":"2026-05-18T03:05:35.471426+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5372","created_at":"2026-05-18T03:05:35.471426+00:00"},{"alias_kind":"pith_short_12","alias_value":"5OKPEEYE5HMK","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_16","alias_value":"5OKPEEYE5HMKF76W","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_8","alias_value":"5OKPEEYE","created_at":"2026-05-18T12:27:34.582898+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/5OKPEEYE5HMKF76WWWYTGM5BNH","json":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH.json","graph_json":"https://pith.science/api/pith-number/5OKPEEYE5HMKF76WWWYTGM5BNH/graph.json","events_json":"https://pith.science/api/pith-number/5OKPEEYE5HMKF76WWWYTGM5BNH/events.json","paper":"https://pith.science/paper/5OKPEEYE"},"agent_actions":{"view_html":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH","download_json":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH.json","view_paper":"https://pith.science/paper/5OKPEEYE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1307.5372&json=true","fetch_graph":"https://pith.science/api/pith-number/5OKPEEYE5HMKF76WWWYTGM5BNH/graph.json","fetch_events":"https://pith.science/api/pith-number/5OKPEEYE5HMKF76WWWYTGM5BNH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH/action/storage_attestation","attest_author":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH/action/author_attestation","sign_citation":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH/action/citation_signature","submit_replication":"https://pith.science/pith/5OKPEEYE5HMKF76WWWYTGM5BNH/action/replication_record"}},"created_at":"2026-05-18T03:05:35.471426+00:00","updated_at":"2026-05-18T03:05:35.471426+00:00"}