{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:Q7XVK5QPXLRVMSSWXMUTMD3K4E","short_pith_number":"pith:Q7XVK5QP","schema_version":"1.0","canonical_sha256":"87ef55760fbae3564a56bb29360f6ae12c96bde4fc10bbdd65fba2a3da568bd5","source":{"kind":"arxiv","id":"0911.4315","version":1},"attestation_state":"computed","paper":{"title":"Positron scattering and annihilation from the hydrogen molecule at zero energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.comp-ph","authors_text":"J. Mitroy, J.-Y. Zhang, K.Varga","submitted_at":"2009-11-23T01:04:26Z","abstract_excerpt":"The confined variational method is used to generate a basis of correlated gaussians to describe the interaction region wave function for positron scattering from the H$_2$ molecule. The scattering length was $\\approx -2.7$ $a_0$ while the zero energy $Z_{\\rm eff}$ of 15.7 is compatible with experimental values. The variation of the scattering length and $Z_{\\rm eff}$ with inter-nuclear distance was surprisingly rapid due to virtual state formation at $R \\approx 3.4$ $a_0$."},"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":"0911.4315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.comp-ph","submitted_at":"2009-11-23T01:04:26Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"eef5d7a780dd1abeee82c4738fff2576e59aa7fbd70d87bdbb10f8e6769d528f","abstract_canon_sha256":"5bad0118ab5c73780a1d9712343fb9e836398d976e28da6722af7f9a0683b29b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:37.619444Z","signature_b64":"qt/+TVH40yDKyWq0vt4IxnypOAAdl5yluqM7OLHu1S7hNQVnPAnPu0fazwaW3Lvgf5qWNDDsPjc2CCjsJUbKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87ef55760fbae3564a56bb29360f6ae12c96bde4fc10bbdd65fba2a3da568bd5","last_reissued_at":"2026-05-18T02:10:37.618598Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:37.618598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Positron scattering and annihilation from the hydrogen molecule at zero energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.comp-ph","authors_text":"J. Mitroy, J.-Y. Zhang, K.Varga","submitted_at":"2009-11-23T01:04:26Z","abstract_excerpt":"The confined variational method is used to generate a basis of correlated gaussians to describe the interaction region wave function for positron scattering from the H$_2$ molecule. The scattering length was $\\approx -2.7$ $a_0$ while the zero energy $Z_{\\rm eff}$ of 15.7 is compatible with experimental values. The variation of the scattering length and $Z_{\\rm eff}$ with inter-nuclear distance was surprisingly rapid due to virtual state formation at $R \\approx 3.4$ $a_0$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.4315","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":"0911.4315","created_at":"2026-05-18T02:10:37.618699+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.4315v1","created_at":"2026-05-18T02:10:37.618699+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.4315","created_at":"2026-05-18T02:10:37.618699+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q7XVK5QPXLRV","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q7XVK5QPXLRVMSSW","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q7XVK5QP","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/Q7XVK5QPXLRVMSSWXMUTMD3K4E","json":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E.json","graph_json":"https://pith.science/api/pith-number/Q7XVK5QPXLRVMSSWXMUTMD3K4E/graph.json","events_json":"https://pith.science/api/pith-number/Q7XVK5QPXLRVMSSWXMUTMD3K4E/events.json","paper":"https://pith.science/paper/Q7XVK5QP"},"agent_actions":{"view_html":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E","download_json":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E.json","view_paper":"https://pith.science/paper/Q7XVK5QP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.4315&json=true","fetch_graph":"https://pith.science/api/pith-number/Q7XVK5QPXLRVMSSWXMUTMD3K4E/graph.json","fetch_events":"https://pith.science/api/pith-number/Q7XVK5QPXLRVMSSWXMUTMD3K4E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E/action/storage_attestation","attest_author":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E/action/author_attestation","sign_citation":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E/action/citation_signature","submit_replication":"https://pith.science/pith/Q7XVK5QPXLRVMSSWXMUTMD3K4E/action/replication_record"}},"created_at":"2026-05-18T02:10:37.618699+00:00","updated_at":"2026-05-18T02:10:37.618699+00:00"}