{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:LXPLJP7AMBS5STO2NVKWCJZ7YB","short_pith_number":"pith:LXPLJP7A","schema_version":"1.0","canonical_sha256":"5ddeb4bfe06065d94dda6d5561273fc073f408b83f1e88f8d825982623956b6e","source":{"kind":"arxiv","id":"1503.03108","version":1},"attestation_state":"computed","paper":{"title":"Formation of negative hydrogen ions in 7-keV OH+ + Ar and OH+ + acetone collisions: a general process for H-bearing molecular species","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph","physics.atm-clus"],"primary_cat":"physics.atom-ph","authors_text":"B\\'ela Sulik, Burcu Sorgunlu-Frankland, Erika Bene, Fran\\c{c}ois Fr\\'emont, Jean-Yves Chesnel, Jimmy Rangama, Zolt\\'an Juh\\'asz","submitted_at":"2015-03-10T21:49:15Z","abstract_excerpt":"We demonstrate that the formation of negative hydrogen ions (H-) occurs in a wide class of atomic and molecular collisions. In our experiments, H- emission from hydroxyl cations and acetone molecules was observed in keV-energy collisions. We show that hydride (H-) anions are formed via direct collisional fragmentation of molecules, followed by electron grabbing by fast hydrogen fragments. Such general mechanism in hydrogen-containing molecules may significantly influence reaction networks in planetary atmospheres and astrophysical media and new reaction pathways may have to be added in radioly"},"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":"1503.03108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-10T21:49:15Z","cross_cats_sorted":["physics.acc-ph","physics.atm-clus"],"title_canon_sha256":"32c42241da617b0de85f1d335ec229fbc46248ce21e888605ff46f85ea7fdd6f","abstract_canon_sha256":"09d3540f0cdbdd2644c0d855858c846dad1834e2c19a818596a81c8d6753becf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:04.264950Z","signature_b64":"zdGK4xj6mZr5JJnGnOL4mg+aSfei6ZBMTD4Y8hsRgucx/MrPDNB9+cCjnKcaMj1MfNck299C817x3uPmENImDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ddeb4bfe06065d94dda6d5561273fc073f408b83f1e88f8d825982623956b6e","last_reissued_at":"2026-05-18T02:25:04.264588Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:04.264588Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Formation of negative hydrogen ions in 7-keV OH+ + Ar and OH+ + acetone collisions: a general process for H-bearing molecular species","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph","physics.atm-clus"],"primary_cat":"physics.atom-ph","authors_text":"B\\'ela Sulik, Burcu Sorgunlu-Frankland, Erika Bene, Fran\\c{c}ois Fr\\'emont, Jean-Yves Chesnel, Jimmy Rangama, Zolt\\'an Juh\\'asz","submitted_at":"2015-03-10T21:49:15Z","abstract_excerpt":"We demonstrate that the formation of negative hydrogen ions (H-) occurs in a wide class of atomic and molecular collisions. In our experiments, H- emission from hydroxyl cations and acetone molecules was observed in keV-energy collisions. We show that hydride (H-) anions are formed via direct collisional fragmentation of molecules, followed by electron grabbing by fast hydrogen fragments. Such general mechanism in hydrogen-containing molecules may significantly influence reaction networks in planetary atmospheres and astrophysical media and new reaction pathways may have to be added in radioly"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.03108","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":"1503.03108","created_at":"2026-05-18T02:25:04.264644+00:00"},{"alias_kind":"arxiv_version","alias_value":"1503.03108v1","created_at":"2026-05-18T02:25:04.264644+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.03108","created_at":"2026-05-18T02:25:04.264644+00:00"},{"alias_kind":"pith_short_12","alias_value":"LXPLJP7AMBS5","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_16","alias_value":"LXPLJP7AMBS5STO2","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_8","alias_value":"LXPLJP7A","created_at":"2026-05-18T12:29:29.992203+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/LXPLJP7AMBS5STO2NVKWCJZ7YB","json":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB.json","graph_json":"https://pith.science/api/pith-number/LXPLJP7AMBS5STO2NVKWCJZ7YB/graph.json","events_json":"https://pith.science/api/pith-number/LXPLJP7AMBS5STO2NVKWCJZ7YB/events.json","paper":"https://pith.science/paper/LXPLJP7A"},"agent_actions":{"view_html":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB","download_json":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB.json","view_paper":"https://pith.science/paper/LXPLJP7A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1503.03108&json=true","fetch_graph":"https://pith.science/api/pith-number/LXPLJP7AMBS5STO2NVKWCJZ7YB/graph.json","fetch_events":"https://pith.science/api/pith-number/LXPLJP7AMBS5STO2NVKWCJZ7YB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB/action/storage_attestation","attest_author":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB/action/author_attestation","sign_citation":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB/action/citation_signature","submit_replication":"https://pith.science/pith/LXPLJP7AMBS5STO2NVKWCJZ7YB/action/replication_record"}},"created_at":"2026-05-18T02:25:04.264644+00:00","updated_at":"2026-05-18T02:25:04.264644+00:00"}