{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:FTFE4UOIYC3K7UVSKVPKL4HAI6","short_pith_number":"pith:FTFE4UOI","schema_version":"1.0","canonical_sha256":"2cca4e51c8c0b6afd2b2555ea5f0e04793a74f6e203fe474f5f1e7b2333bc724","source":{"kind":"arxiv","id":"2602.16567","version":1},"attestation_state":"computed","paper":{"title":"Scattering and sputtering on the lunar surface; Insights from negative ions observed at the surface","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph","physics.ins-det","stat.AP"],"primary_cat":"physics.space-ph","authors_text":"Aibing Zhang, Chi Wang, Gabriella Stenberg Wieser, Martin Wieser, Romain Canu-Blot, Stas Barabash, Thomas Maynadi\\'e, Umberto Rollero, Wenjing Wang","submitted_at":"2026-02-18T16:09:02Z","abstract_excerpt":"Context. Airless planetary bodies are directly exposed to solar wind ions, which can scatter or become implanted upon impact with the regolith-covered surface, while also sputtering surface atoms.\n  Aims. We construct a semi-analytical model for the scattering of ions of hundreds of eV and the sputtering of surface atoms, both resulting in the emission of negative ions from the lunar surface. Our model contains a novel description of the scattering process that is physics-based and constrained by observations.\n  Methods. We use data from the Negative Ions at the Lunar Surface (NILS) instrument"},"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":"2602.16567","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2026-02-18T16:09:02Z","cross_cats_sorted":["physics.atom-ph","physics.ins-det","stat.AP"],"title_canon_sha256":"416d33dc2346adaceba7081f30cb309cf1ac79169e389115f38a9549a8e4ccf1","abstract_canon_sha256":"497a066dfa4cdf81739302f1588b04eebec29599ce17e72e229664d80ebda3d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:10:35.529418Z","signature_b64":"L9aRMI6KfLrJ0lSz5AKeeLJb3opEH+xYjOaHCDUmb2mEdz3gJz4cebulzqoHJQYm1xoKIe4zZv7e7v+mtP1UAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cca4e51c8c0b6afd2b2555ea5f0e04793a74f6e203fe474f5f1e7b2333bc724","last_reissued_at":"2026-06-19T16:10:35.528921Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:10:35.528921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Scattering and sputtering on the lunar surface; Insights from negative ions observed at the surface","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph","physics.ins-det","stat.AP"],"primary_cat":"physics.space-ph","authors_text":"Aibing Zhang, Chi Wang, Gabriella Stenberg Wieser, Martin Wieser, Romain Canu-Blot, Stas Barabash, Thomas Maynadi\\'e, Umberto Rollero, Wenjing Wang","submitted_at":"2026-02-18T16:09:02Z","abstract_excerpt":"Context. Airless planetary bodies are directly exposed to solar wind ions, which can scatter or become implanted upon impact with the regolith-covered surface, while also sputtering surface atoms.\n  Aims. We construct a semi-analytical model for the scattering of ions of hundreds of eV and the sputtering of surface atoms, both resulting in the emission of negative ions from the lunar surface. Our model contains a novel description of the scattering process that is physics-based and constrained by observations.\n  Methods. We use data from the Negative Ions at the Lunar Surface (NILS) instrument"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.16567","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/2602.16567/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":"2602.16567","created_at":"2026-06-19T16:10:35.528977+00:00"},{"alias_kind":"arxiv_version","alias_value":"2602.16567v1","created_at":"2026-06-19T16:10:35.528977+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.16567","created_at":"2026-06-19T16:10:35.528977+00:00"},{"alias_kind":"pith_short_12","alias_value":"FTFE4UOIYC3K","created_at":"2026-06-19T16:10:35.528977+00:00"},{"alias_kind":"pith_short_16","alias_value":"FTFE4UOIYC3K7UVS","created_at":"2026-06-19T16:10:35.528977+00:00"},{"alias_kind":"pith_short_8","alias_value":"FTFE4UOI","created_at":"2026-06-19T16:10:35.528977+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/FTFE4UOIYC3K7UVSKVPKL4HAI6","json":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6.json","graph_json":"https://pith.science/api/pith-number/FTFE4UOIYC3K7UVSKVPKL4HAI6/graph.json","events_json":"https://pith.science/api/pith-number/FTFE4UOIYC3K7UVSKVPKL4HAI6/events.json","paper":"https://pith.science/paper/FTFE4UOI"},"agent_actions":{"view_html":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6","download_json":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6.json","view_paper":"https://pith.science/paper/FTFE4UOI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2602.16567&json=true","fetch_graph":"https://pith.science/api/pith-number/FTFE4UOIYC3K7UVSKVPKL4HAI6/graph.json","fetch_events":"https://pith.science/api/pith-number/FTFE4UOIYC3K7UVSKVPKL4HAI6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6/action/storage_attestation","attest_author":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6/action/author_attestation","sign_citation":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6/action/citation_signature","submit_replication":"https://pith.science/pith/FTFE4UOIYC3K7UVSKVPKL4HAI6/action/replication_record"}},"created_at":"2026-06-19T16:10:35.528977+00:00","updated_at":"2026-06-19T16:10:35.528977+00:00"}