{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:OXMXOPV7X4CIH5L7DGYZJRDEDL","short_pith_number":"pith:OXMXOPV7","schema_version":"1.0","canonical_sha256":"75d9773ebfbf0483f57f19b194c4641ac544152be18a5c2a08705d21d4b5961a","source":{"kind":"arxiv","id":"hep-ph/9909495","version":3},"attestation_state":"computed","paper":{"title":"Details on the ${\\cal{O}}(m_e \\alpha^6)$ Positronium Hyperfine Splitting due to Single Photon Annihilation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. H. Hoang (CERN), Canada), Iran), P. Labelle (McGill University, S. M. Zebarjad (Shiraz University","submitted_at":"1999-09-23T22:41:30Z","abstract_excerpt":"A detailed presentation is given of the analytic calculation of the single-photon annihilation contributions to the positronium ground state hyperfine splitting to order $m_e\\alpha^6$ in the framework of non-relativistic effective theories. The current status of the theoretical description of the positronium ground state hyperfine splitting is reviewed."},"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":"hep-ph/9909495","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-09-23T22:41:30Z","cross_cats_sorted":[],"title_canon_sha256":"c06b316307ad433019e15098d8d0b5cb5598828898b014899072aee443993f3f","abstract_canon_sha256":"4b4fa1c9e1b1e5f91fbbdc5715907661648bc14e2c461a93ffd5f0cca2340e56"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:17:36.989011Z","signature_b64":"OQDrGUKp7P3Ar/sZ6C16lGi922RilTZKCK7QOmLsgo/DjLSEgT9X1wuX0i0ihYW98sodPsSjAjDT/VxXcMcmDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75d9773ebfbf0483f57f19b194c4641ac544152be18a5c2a08705d21d4b5961a","last_reissued_at":"2026-05-18T04:17:36.988626Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:17:36.988626Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Details on the ${\\cal{O}}(m_e \\alpha^6)$ Positronium Hyperfine Splitting due to Single Photon Annihilation","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. H. Hoang (CERN), Canada), Iran), P. Labelle (McGill University, S. M. Zebarjad (Shiraz University","submitted_at":"1999-09-23T22:41:30Z","abstract_excerpt":"A detailed presentation is given of the analytic calculation of the single-photon annihilation contributions to the positronium ground state hyperfine splitting to order $m_e\\alpha^6$ in the framework of non-relativistic effective theories. The current status of the theoretical description of the positronium ground state hyperfine splitting is reviewed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9909495","kind":"arxiv","version":3},"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":"hep-ph/9909495","created_at":"2026-05-18T04:17:36.988688+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9909495v3","created_at":"2026-05-18T04:17:36.988688+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9909495","created_at":"2026-05-18T04:17:36.988688+00:00"},{"alias_kind":"pith_short_12","alias_value":"OXMXOPV7X4CI","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_16","alias_value":"OXMXOPV7X4CIH5L7","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_8","alias_value":"OXMXOPV7","created_at":"2026-05-18T12:25:49.631198+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"1908.00561","citing_title":"Chiral kinetic theory from the on-shell effective theory: derivation of collision terms","ref_index":57,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL","json":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL.json","graph_json":"https://pith.science/api/pith-number/OXMXOPV7X4CIH5L7DGYZJRDEDL/graph.json","events_json":"https://pith.science/api/pith-number/OXMXOPV7X4CIH5L7DGYZJRDEDL/events.json","paper":"https://pith.science/paper/OXMXOPV7"},"agent_actions":{"view_html":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL","download_json":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL.json","view_paper":"https://pith.science/paper/OXMXOPV7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9909495&json=true","fetch_graph":"https://pith.science/api/pith-number/OXMXOPV7X4CIH5L7DGYZJRDEDL/graph.json","fetch_events":"https://pith.science/api/pith-number/OXMXOPV7X4CIH5L7DGYZJRDEDL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL/action/storage_attestation","attest_author":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL/action/author_attestation","sign_citation":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL/action/citation_signature","submit_replication":"https://pith.science/pith/OXMXOPV7X4CIH5L7DGYZJRDEDL/action/replication_record"}},"created_at":"2026-05-18T04:17:36.988688+00:00","updated_at":"2026-05-18T04:17:36.988688+00:00"}