{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:5NMQAJHADBUT3D4B3LANWHME7T","short_pith_number":"pith:5NMQAJHA","schema_version":"1.0","canonical_sha256":"eb590024e018693d8f81dac0db1d84fcdee1049335e54613d6faee9403b8829a","source":{"kind":"arxiv","id":"1810.09835","version":1},"attestation_state":"computed","paper":{"title":"First Detection of Solar Flare Emission in Middle-Ultraviolet Balmer Continuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrei N. Zhukov, Giovanni Lapenta, Ingolf E. Dammasch, Janet Machol, Laurence Wauters, Laurent Dolla, Marie Dominique, Matthieu Kretzschmar, Petr Heinzel, Sergei Shestov, Werner Schmutz","submitted_at":"2018-10-23T13:22:43Z","abstract_excerpt":"We present the first detection of solar flare emission at middle-ultraviolet wavelengths around 2000 A by the channel 2 of the Large-Yield RAdiometer (LYRA) onboard the PROBA2 mission. The flare (SOL20170906) was also observed in the channel 1 of LYRA centered at the H I Lyman-{\\alpha} line at 1216 A, showing a clear non-thermal profile in both channels. The flare radiation in channel 2 is consistent with the hydrogen Balmer continuum emission produced by an optically thin chromospheric slab heated up to 10000 K. Simultaneous observations in channels 1 and 2 allow the separation of the line em"},"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":"1810.09835","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-10-23T13:22:43Z","cross_cats_sorted":[],"title_canon_sha256":"179274eb2008f2749db816e97b2a5cd2618bac560e83d1297bae13283a15b8b5","abstract_canon_sha256":"371a63cde66c85b8c2a87aff04110f739222ac20142854c05225afb6bed8056b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:47.116680Z","signature_b64":"AQjDwiwxG1k2XbYxHSpVg7//CuJMIGf2ETEWUbMqRj807gDmHyXE7dhJeqeb9Kblqy809G/mcYPA+1jysOoDBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eb590024e018693d8f81dac0db1d84fcdee1049335e54613d6faee9403b8829a","last_reissued_at":"2026-05-18T00:00:47.116294Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:47.116294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First Detection of Solar Flare Emission in Middle-Ultraviolet Balmer Continuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrei N. Zhukov, Giovanni Lapenta, Ingolf E. Dammasch, Janet Machol, Laurence Wauters, Laurent Dolla, Marie Dominique, Matthieu Kretzschmar, Petr Heinzel, Sergei Shestov, Werner Schmutz","submitted_at":"2018-10-23T13:22:43Z","abstract_excerpt":"We present the first detection of solar flare emission at middle-ultraviolet wavelengths around 2000 A by the channel 2 of the Large-Yield RAdiometer (LYRA) onboard the PROBA2 mission. The flare (SOL20170906) was also observed in the channel 1 of LYRA centered at the H I Lyman-{\\alpha} line at 1216 A, showing a clear non-thermal profile in both channels. The flare radiation in channel 2 is consistent with the hydrogen Balmer continuum emission produced by an optically thin chromospheric slab heated up to 10000 K. Simultaneous observations in channels 1 and 2 allow the separation of the line em"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09835","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":"1810.09835","created_at":"2026-05-18T00:00:47.116361+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.09835v1","created_at":"2026-05-18T00:00:47.116361+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09835","created_at":"2026-05-18T00:00:47.116361+00:00"},{"alias_kind":"pith_short_12","alias_value":"5NMQAJHADBUT","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"5NMQAJHADBUT3D4B","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"5NMQAJHA","created_at":"2026-05-18T12:32:08.215937+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/5NMQAJHADBUT3D4B3LANWHME7T","json":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T.json","graph_json":"https://pith.science/api/pith-number/5NMQAJHADBUT3D4B3LANWHME7T/graph.json","events_json":"https://pith.science/api/pith-number/5NMQAJHADBUT3D4B3LANWHME7T/events.json","paper":"https://pith.science/paper/5NMQAJHA"},"agent_actions":{"view_html":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T","download_json":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T.json","view_paper":"https://pith.science/paper/5NMQAJHA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.09835&json=true","fetch_graph":"https://pith.science/api/pith-number/5NMQAJHADBUT3D4B3LANWHME7T/graph.json","fetch_events":"https://pith.science/api/pith-number/5NMQAJHADBUT3D4B3LANWHME7T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T/action/storage_attestation","attest_author":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T/action/author_attestation","sign_citation":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T/action/citation_signature","submit_replication":"https://pith.science/pith/5NMQAJHADBUT3D4B3LANWHME7T/action/replication_record"}},"created_at":"2026-05-18T00:00:47.116361+00:00","updated_at":"2026-05-18T00:00:47.116361+00:00"}