{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2QN6JOVK5EMZCJXUB6BAUQZYQP","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":"2cf730eb65a75614b3aa5d6ae58a45c9ce1d6b5ec68c864e4714c11539bf3586","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-08T02:46:34Z","title_canon_sha256":"626744148c7e3687445146cc1774257e8d5186e15463c7b89ba4d297f4953dbb"},"schema_version":"1.0","source":{"id":"1102.1495","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1102.1495","created_at":"2026-05-18T02:03:15Z"},{"alias_kind":"arxiv_version","alias_value":"1102.1495v1","created_at":"2026-05-18T02:03:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1102.1495","created_at":"2026-05-18T02:03:15Z"},{"alias_kind":"pith_short_12","alias_value":"2QN6JOVK5EMZ","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2QN6JOVK5EMZCJXU","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2QN6JOVK","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:a6f64eec6621e69beae3202f158e1d46f1a8100ca6235c54d77db3a45c93ce46","target":"graph","created_at":"2026-05-18T02:03:15Z","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"},"paper":{"abstract_excerpt":"We observed the Cygnus Loop with XMM-Newton (9 pointings) and Suzaku (32 pointings) between 2002 and 2008. The total effective exposure time is 670.2 ks. By using all of the available data, we intended to improve a signal-to-noise ratio of the spectrum. Accordingly, the accumulated spectra obtained by the XIS and the EPIC show some line features around 3 keV that are attributed to the S He$\\beta$ and Ar He$\\alpha$ lines, respectively. Since the Cygnus Loop is an evolved ($\\sim$10,000 yr) supernova remnant whose temperature is relatively low ($<$1 keV) compared with other young remnants, its sp","authors_text":"H. Kosugi, H. Takahashi, H. Tsunemi, H. Uchida, M. Kimura, N. Tominaga, S. Katsuda, S. Takakura","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-08T02:46:34Z","title":"First Detection of Ar-K Line Emission from the Cygnus Loop"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1102.1495","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:b3e06427071681b0730087b4bda9ce3de3d6bc7a094404102cdee6a924a37a39","target":"record","created_at":"2026-05-18T02:03:15Z","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":"2cf730eb65a75614b3aa5d6ae58a45c9ce1d6b5ec68c864e4714c11539bf3586","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-08T02:46:34Z","title_canon_sha256":"626744148c7e3687445146cc1774257e8d5186e15463c7b89ba4d297f4953dbb"},"schema_version":"1.0","source":{"id":"1102.1495","kind":"arxiv","version":1}},"canonical_sha256":"d41be4baaae9199126f40f820a433883da6d5db4d3bf1ccb11a6091a44f97ed5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d41be4baaae9199126f40f820a433883da6d5db4d3bf1ccb11a6091a44f97ed5","first_computed_at":"2026-05-18T02:03:15.603766Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:15.603766Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jobvzhhXhDcR8s6oihwN0MM+j/U6zT3I260uczv6msxDX/CENbVQ9jnPQ28GCgI58Z0ySfRJAVvahZ1mYOrPCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:15.604227Z","signed_message":"canonical_sha256_bytes"},"source_id":"1102.1495","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b3e06427071681b0730087b4bda9ce3de3d6bc7a094404102cdee6a924a37a39","sha256:a6f64eec6621e69beae3202f158e1d46f1a8100ca6235c54d77db3a45c93ce46"],"state_sha256":"ecabde25e31b7c9fcb86e650650b2a160b75c868a6505e6d8c078c1580060f2f"}