{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:YDAKKFFNJKDWEEVRUQW3RZK56M","short_pith_number":"pith:YDAKKFFN","schema_version":"1.0","canonical_sha256":"c0c0a514ad4a876212b1a42db8e55df31b72901d806b839e9c9bef5838b0ddea","source":{"kind":"arxiv","id":"1901.03935","version":1},"attestation_state":"computed","paper":{"title":"Quantifying the Influence of Key Physical Processes on the Formation of Emission Lines Observed by IRIS: I. Non-Equilibrium Ionization and Density-Dependent Rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Paola Testa, Stephen J. Bradshaw","submitted_at":"2019-01-13T04:58:47Z","abstract_excerpt":"In the work described here we investigate atomic processes leading to the formation of emission lines within the IRIS wavelength range at temperatures near $10^5$~K. We focus on (1) non-equilibrium and (2) density-dependent effects influencing the formation and radiative properties of S IV and O IV. These two effects have significant impacts on spectroscopic diagnostic measurements of quantities associated with the plasma that emission lines from S IV and O IV provide. We demonstrate this by examining nanoflare-based coronal heating to determine what the detectable signatures are in transition"},"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":"1901.03935","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-13T04:58:47Z","cross_cats_sorted":[],"title_canon_sha256":"ffa3d49a4e81c80f75a4516a9f5c997d0d40e57cf1786939377751a447c35269","abstract_canon_sha256":"2f308da640d8be43b6a32f1b61afc880ca502388bdcfdb0ee512b94b8946960e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:38.662754Z","signature_b64":"PnTP21NdaEVBzV79r5OkXRQrO4kxhX/qygmAJJmuhOxq3GJ7l6ukUmzWfA62iqEWn/WH3K3eprZftR3hcYASDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0c0a514ad4a876212b1a42db8e55df31b72901d806b839e9c9bef5838b0ddea","last_reissued_at":"2026-05-17T23:52:38.662010Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:38.662010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantifying the Influence of Key Physical Processes on the Formation of Emission Lines Observed by IRIS: I. Non-Equilibrium Ionization and Density-Dependent Rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Paola Testa, Stephen J. Bradshaw","submitted_at":"2019-01-13T04:58:47Z","abstract_excerpt":"In the work described here we investigate atomic processes leading to the formation of emission lines within the IRIS wavelength range at temperatures near $10^5$~K. We focus on (1) non-equilibrium and (2) density-dependent effects influencing the formation and radiative properties of S IV and O IV. These two effects have significant impacts on spectroscopic diagnostic measurements of quantities associated with the plasma that emission lines from S IV and O IV provide. We demonstrate this by examining nanoflare-based coronal heating to determine what the detectable signatures are in transition"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.03935","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":"1901.03935","created_at":"2026-05-17T23:52:38.662130+00:00"},{"alias_kind":"arxiv_version","alias_value":"1901.03935v1","created_at":"2026-05-17T23:52:38.662130+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.03935","created_at":"2026-05-17T23:52:38.662130+00:00"},{"alias_kind":"pith_short_12","alias_value":"YDAKKFFNJKDW","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_16","alias_value":"YDAKKFFNJKDWEEVR","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_8","alias_value":"YDAKKFFN","created_at":"2026-05-18T12:33:33.725879+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/YDAKKFFNJKDWEEVRUQW3RZK56M","json":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M.json","graph_json":"https://pith.science/api/pith-number/YDAKKFFNJKDWEEVRUQW3RZK56M/graph.json","events_json":"https://pith.science/api/pith-number/YDAKKFFNJKDWEEVRUQW3RZK56M/events.json","paper":"https://pith.science/paper/YDAKKFFN"},"agent_actions":{"view_html":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M","download_json":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M.json","view_paper":"https://pith.science/paper/YDAKKFFN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1901.03935&json=true","fetch_graph":"https://pith.science/api/pith-number/YDAKKFFNJKDWEEVRUQW3RZK56M/graph.json","fetch_events":"https://pith.science/api/pith-number/YDAKKFFNJKDWEEVRUQW3RZK56M/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M/action/storage_attestation","attest_author":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M/action/author_attestation","sign_citation":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M/action/citation_signature","submit_replication":"https://pith.science/pith/YDAKKFFNJKDWEEVRUQW3RZK56M/action/replication_record"}},"created_at":"2026-05-17T23:52:38.662130+00:00","updated_at":"2026-05-17T23:52:38.662130+00:00"}