{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:T2ECAMWOKVJGRJTDSP55JYOU4A","short_pith_number":"pith:T2ECAMWO","schema_version":"1.0","canonical_sha256":"9e882032ce555268a66393fbd4e1d4e00de13b75e0607a0ff3f9bb38e9e772c5","source":{"kind":"arxiv","id":"0906.1381","version":1},"attestation_state":"computed","paper":{"title":"Influence of water adsorbed on gold on van der Waals/Casimir forces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"G. Palasantzas, P. J. van Zwol, V. B. Svetovoy","submitted_at":"2009-06-07T19:26:04Z","abstract_excerpt":"In this paper we investigate the influence of ultra thin water layer (1-1.5 nm) on the van der Waals/Casimir force between gold surfaces. Adsorbed water is inevitably present on gold surfaces at ambient conditions as jump-up-to contact during adhesion experiments demonstrate. Calculations based on the Lifshitz theory give very good agreement with the experiment in absence of any water layer for surface separations d>10 nm. However, a layer of thickness h<1.5 nm is allowed by the error margin in force measurements. At shorter separations, d<10 nm, the water layer can have a strong influence as "},"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":"0906.1381","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-06-07T19:26:04Z","cross_cats_sorted":[],"title_canon_sha256":"4eb266a3455548a315748ef11c3b530ec599aa0331d2feac39d6c9617533c44e","abstract_canon_sha256":"c6c571f25826e047517ed54c285272a21565431a4eac1ff37d36c4484ebea80d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:28.348814Z","signature_b64":"jFsWkG8GC0ArOMo9sWaYJaJSghDpf4O0lA5VGBTvdHGXcNfDUWWA/wUTHcPPHSEDgttDMQrC5bzqWLwOBAirDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e882032ce555268a66393fbd4e1d4e00de13b75e0607a0ff3f9bb38e9e772c5","last_reissued_at":"2026-05-18T02:13:28.348222Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:28.348222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Influence of water adsorbed on gold on van der Waals/Casimir forces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"G. Palasantzas, P. J. van Zwol, V. B. Svetovoy","submitted_at":"2009-06-07T19:26:04Z","abstract_excerpt":"In this paper we investigate the influence of ultra thin water layer (1-1.5 nm) on the van der Waals/Casimir force between gold surfaces. Adsorbed water is inevitably present on gold surfaces at ambient conditions as jump-up-to contact during adhesion experiments demonstrate. Calculations based on the Lifshitz theory give very good agreement with the experiment in absence of any water layer for surface separations d>10 nm. However, a layer of thickness h<1.5 nm is allowed by the error margin in force measurements. At shorter separations, d<10 nm, the water layer can have a strong influence as "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.1381","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":"0906.1381","created_at":"2026-05-18T02:13:28.348334+00:00"},{"alias_kind":"arxiv_version","alias_value":"0906.1381v1","created_at":"2026-05-18T02:13:28.348334+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.1381","created_at":"2026-05-18T02:13:28.348334+00:00"},{"alias_kind":"pith_short_12","alias_value":"T2ECAMWOKVJG","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"T2ECAMWOKVJGRJTD","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"T2ECAMWO","created_at":"2026-05-18T12:26:01.383474+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/T2ECAMWOKVJGRJTDSP55JYOU4A","json":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A.json","graph_json":"https://pith.science/api/pith-number/T2ECAMWOKVJGRJTDSP55JYOU4A/graph.json","events_json":"https://pith.science/api/pith-number/T2ECAMWOKVJGRJTDSP55JYOU4A/events.json","paper":"https://pith.science/paper/T2ECAMWO"},"agent_actions":{"view_html":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A","download_json":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A.json","view_paper":"https://pith.science/paper/T2ECAMWO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0906.1381&json=true","fetch_graph":"https://pith.science/api/pith-number/T2ECAMWOKVJGRJTDSP55JYOU4A/graph.json","fetch_events":"https://pith.science/api/pith-number/T2ECAMWOKVJGRJTDSP55JYOU4A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A/action/storage_attestation","attest_author":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A/action/author_attestation","sign_citation":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A/action/citation_signature","submit_replication":"https://pith.science/pith/T2ECAMWOKVJGRJTDSP55JYOU4A/action/replication_record"}},"created_at":"2026-05-18T02:13:28.348334+00:00","updated_at":"2026-05-18T02:13:28.348334+00:00"}