{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:LBPFL4DD36J75FFXAAWFSGDZHD","short_pith_number":"pith:LBPFL4DD","schema_version":"1.0","canonical_sha256":"585e55f063df93fe94b7002c59187938e4848d259979a2639c6bb3c39d834f30","source":{"kind":"arxiv","id":"0912.0953","version":2},"attestation_state":"computed","paper":{"title":"Can Thermal Nonequilibrium Explain Coronal Loops?","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. A. Klimchuk, J. T. Karpen, S. K. Antiochos","submitted_at":"2009-12-04T21:43:12Z","abstract_excerpt":"Any successful model of coronal loops must explain a number of observed properties. For warm (~ 1 MK) loops, these include: 1. excess density, 2. flat temperature profile, 3. super-hydrostatic scale height, 4. unstructured intensity profile, and 5. 1000--5000 s lifetime. We examine whether thermal nonequilibrium can reproduce the observations by performing hydrodynamic simulations based on steady coronal heating that decreases exponentially with height. We consider both monolithic and multi-stranded loops. The simulations successfully reproduce certain aspects of the observations, including th"},"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":"0912.0953","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2009-12-04T21:43:12Z","cross_cats_sorted":[],"title_canon_sha256":"e996396cf91eeef2165dc760ad156e8a725e6e47e82cfe75b4d33486eeec5cf0","abstract_canon_sha256":"2af89ff50c56faeaebbdaac33e9b3a96369801865eb8a7d4887120586f49fb33"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:57.510325Z","signature_b64":"1LXS3YAMaTFRIH5fs0d8neUr4CFFII+aU+38kK/0PXQ0TYudyRAjWaZhvrHicvaNPXUJCMTsA/DS60zzEK/kCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"585e55f063df93fe94b7002c59187938e4848d259979a2639c6bb3c39d834f30","last_reissued_at":"2026-05-18T02:33:57.509898Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:57.509898Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Can Thermal Nonequilibrium Explain Coronal Loops?","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J. A. Klimchuk, J. T. Karpen, S. K. Antiochos","submitted_at":"2009-12-04T21:43:12Z","abstract_excerpt":"Any successful model of coronal loops must explain a number of observed properties. For warm (~ 1 MK) loops, these include: 1. excess density, 2. flat temperature profile, 3. super-hydrostatic scale height, 4. unstructured intensity profile, and 5. 1000--5000 s lifetime. We examine whether thermal nonequilibrium can reproduce the observations by performing hydrodynamic simulations based on steady coronal heating that decreases exponentially with height. We consider both monolithic and multi-stranded loops. The simulations successfully reproduce certain aspects of the observations, including th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.0953","kind":"arxiv","version":2},"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":"0912.0953","created_at":"2026-05-18T02:33:57.509968+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.0953v2","created_at":"2026-05-18T02:33:57.509968+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.0953","created_at":"2026-05-18T02:33:57.509968+00:00"},{"alias_kind":"pith_short_12","alias_value":"LBPFL4DD36J7","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"LBPFL4DD36J75FFX","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"LBPFL4DD","created_at":"2026-05-18T12:26:00.592388+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/LBPFL4DD36J75FFXAAWFSGDZHD","json":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD.json","graph_json":"https://pith.science/api/pith-number/LBPFL4DD36J75FFXAAWFSGDZHD/graph.json","events_json":"https://pith.science/api/pith-number/LBPFL4DD36J75FFXAAWFSGDZHD/events.json","paper":"https://pith.science/paper/LBPFL4DD"},"agent_actions":{"view_html":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD","download_json":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD.json","view_paper":"https://pith.science/paper/LBPFL4DD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.0953&json=true","fetch_graph":"https://pith.science/api/pith-number/LBPFL4DD36J75FFXAAWFSGDZHD/graph.json","fetch_events":"https://pith.science/api/pith-number/LBPFL4DD36J75FFXAAWFSGDZHD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD/action/storage_attestation","attest_author":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD/action/author_attestation","sign_citation":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD/action/citation_signature","submit_replication":"https://pith.science/pith/LBPFL4DD36J75FFXAAWFSGDZHD/action/replication_record"}},"created_at":"2026-05-18T02:33:57.509968+00:00","updated_at":"2026-05-18T02:33:57.509968+00:00"}