{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:VHHEULY5CK5Y2IIPCI5OC3MTL5","short_pith_number":"pith:VHHEULY5","schema_version":"1.0","canonical_sha256":"a9ce4a2f1d12bb8d210f123ae16d935f445344ea08f8032fb17240dc1d772686","source":{"kind":"arxiv","id":"1610.00352","version":1},"attestation_state":"computed","paper":{"title":"Formation of the helium EUV resonance lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jorrit Leenaarts, Mats Carlsson, Thomas Peter Golding","submitted_at":"2016-10-02T21:21:12Z","abstract_excerpt":"Context: While classical models successfully reproduce intensities of many transition region lines, they predict helium EUV line intensities roughly an order of magnitude lower than the observed value.\n  Aims: To determine the relevant formation mechanism(s) of the helium EUV resonance lines, capable of explaining the high intensities under quiet sun conditions.\n  Methods: We synthesise and study the emergent spectra from a 3D radiation-magnetohydrodynamics simulation model. The effects of coronal illumination and non-equilibrium ionisation of hydrogen and helium are included self-consistently"},"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":"1610.00352","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-10-02T21:21:12Z","cross_cats_sorted":[],"title_canon_sha256":"e3485f0825e11685f648a25de32ded1960ebc94d27ce9c24521361039234498c","abstract_canon_sha256":"e8ab090a70c5621f21e351f81ce451db2a8cacffa7229e2c90145a7aa8f4b839"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:07.321491Z","signature_b64":"9njJUyJwzWG7GFymeUJuTrv6jk9jW+gO8ryj4Pq8sISfQjey8j9Rj9EM9/FAsjsD+Uv9iUp/WV/ElvCpQz40Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9ce4a2f1d12bb8d210f123ae16d935f445344ea08f8032fb17240dc1d772686","last_reissued_at":"2026-05-18T00:53:07.320943Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:07.320943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Formation of the helium EUV resonance lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jorrit Leenaarts, Mats Carlsson, Thomas Peter Golding","submitted_at":"2016-10-02T21:21:12Z","abstract_excerpt":"Context: While classical models successfully reproduce intensities of many transition region lines, they predict helium EUV line intensities roughly an order of magnitude lower than the observed value.\n  Aims: To determine the relevant formation mechanism(s) of the helium EUV resonance lines, capable of explaining the high intensities under quiet sun conditions.\n  Methods: We synthesise and study the emergent spectra from a 3D radiation-magnetohydrodynamics simulation model. The effects of coronal illumination and non-equilibrium ionisation of hydrogen and helium are included self-consistently"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.00352","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":"1610.00352","created_at":"2026-05-18T00:53:07.321021+00:00"},{"alias_kind":"arxiv_version","alias_value":"1610.00352v1","created_at":"2026-05-18T00:53:07.321021+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.00352","created_at":"2026-05-18T00:53:07.321021+00:00"},{"alias_kind":"pith_short_12","alias_value":"VHHEULY5CK5Y","created_at":"2026-05-18T12:30:48.956258+00:00"},{"alias_kind":"pith_short_16","alias_value":"VHHEULY5CK5Y2IIP","created_at":"2026-05-18T12:30:48.956258+00:00"},{"alias_kind":"pith_short_8","alias_value":"VHHEULY5","created_at":"2026-05-18T12:30:48.956258+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/VHHEULY5CK5Y2IIPCI5OC3MTL5","json":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5.json","graph_json":"https://pith.science/api/pith-number/VHHEULY5CK5Y2IIPCI5OC3MTL5/graph.json","events_json":"https://pith.science/api/pith-number/VHHEULY5CK5Y2IIPCI5OC3MTL5/events.json","paper":"https://pith.science/paper/VHHEULY5"},"agent_actions":{"view_html":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5","download_json":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5.json","view_paper":"https://pith.science/paper/VHHEULY5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1610.00352&json=true","fetch_graph":"https://pith.science/api/pith-number/VHHEULY5CK5Y2IIPCI5OC3MTL5/graph.json","fetch_events":"https://pith.science/api/pith-number/VHHEULY5CK5Y2IIPCI5OC3MTL5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5/action/storage_attestation","attest_author":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5/action/author_attestation","sign_citation":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5/action/citation_signature","submit_replication":"https://pith.science/pith/VHHEULY5CK5Y2IIPCI5OC3MTL5/action/replication_record"}},"created_at":"2026-05-18T00:53:07.321021+00:00","updated_at":"2026-05-18T00:53:07.321021+00:00"}