{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:M2LMRQB4NH54MLE2WOANFPWFPT","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"859706dc86bbc69d2a2c1f3cf18d5c225858252beea3d24982edd8970e8a2f32","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-23T11:56:01Z","title_canon_sha256":"ab638bdfeef4d8e69e38d45eb2298d7f798706448ec533a2c521a70bac08abc4"},"schema_version":"1.0","source":{"id":"astro-ph/0204385","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0204385","created_at":"2026-07-04T16:29:54Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0204385v1","created_at":"2026-07-04T16:29:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0204385","created_at":"2026-07-04T16:29:54Z"},{"alias_kind":"pith_short_12","alias_value":"M2LMRQB4NH54","created_at":"2026-07-04T16:29:54Z"},{"alias_kind":"pith_short_16","alias_value":"M2LMRQB4NH54MLE2","created_at":"2026-07-04T16:29:54Z"},{"alias_kind":"pith_short_8","alias_value":"M2LMRQB4","created_at":"2026-07-04T16:29:54Z"}],"graph_snapshots":[{"event_id":"sha256:59ad45ce49e1891846d4c9507a2b03e930e7b0d6e1585685478fe6ab1837ed52","target":"graph","created_at":"2026-07-04T16:29:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0204385/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report the analysis of the high-resolution soft X-ray spectrum of the nearby F-type star Procyon in the wavelength range from 5 to 175 Angstrom obtained with the Low Energy Transmission Grating Spectrometer (LETGS) on board Chandra and with the Reflection Grating Spectrometers (RGS) and the EPIC-MOS CCD spectrometers on board XMM-Newton. Line fluxes have been measured separately for the RGS and LETGS. Spectra have been fitted globally to obtain self-consistent temperatures, emission measures, and abundances. The total volume emission measure is ~4.1 x 10e50/cm3 with a peak between 1 and 3 M","authors_text":"A.J.J. Raassen, C.R. Foley, E. Behar, J.S. Kaastra, J.-U. Ness, M. Audard, M. Guedel, R.L.J. van der Meer, R. Mewe","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-04-23T11:56:01Z","title":"High-resolution X-ray spectroscopy of Procyon by Chandra and XMM-Newton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0204385","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6f2c2d045cb6eacb30d5e230dc4e365ad1fa874e9276412a68c4210d6b3357e3","target":"record","created_at":"2026-07-04T16:29:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"859706dc86bbc69d2a2c1f3cf18d5c225858252beea3d24982edd8970e8a2f32","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-04-23T11:56:01Z","title_canon_sha256":"ab638bdfeef4d8e69e38d45eb2298d7f798706448ec533a2c521a70bac08abc4"},"schema_version":"1.0","source":{"id":"astro-ph/0204385","kind":"arxiv","version":1}},"canonical_sha256":"6696c8c03c69fbc62c9ab380d2bec57ce3fc9d507869813ab0a46337efe4e030","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6696c8c03c69fbc62c9ab380d2bec57ce3fc9d507869813ab0a46337efe4e030","first_computed_at":"2026-07-04T16:29:54.006881Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:29:54.006881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dwki+X7OtRaYuRiPVlTzLoWLnYKNfpkhq4OKo81XjaTwRomDjlxt3MOjMsaoRFb+HJg3xcTWsbYVTPJsjH9gCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:29:54.007294Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0204385","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f2c2d045cb6eacb30d5e230dc4e365ad1fa874e9276412a68c4210d6b3357e3","sha256:59ad45ce49e1891846d4c9507a2b03e930e7b0d6e1585685478fe6ab1837ed52"],"state_sha256":"e4906dce6afc0cbd7d39eae96244978249f510c89b6a2ddc3a9668f476e4ca2d"}