{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RVXBURZTGS7YRT7NNZ6EMBQEUX","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":"b4b046e7717e985d4aa8f055eb80458495089662f042f3f92da9ee9d80815d07","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-05-18T05:16:46Z","title_canon_sha256":"e5b30d7c2a393342515b33f02ac245a9dd5b18312067e2f9edccb3a9b1575338"},"schema_version":"1.0","source":{"id":"2005.08462","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.08462","created_at":"2026-07-05T01:12:46Z"},{"alias_kind":"arxiv_version","alias_value":"2005.08462v2","created_at":"2026-07-05T01:12:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.08462","created_at":"2026-07-05T01:12:46Z"},{"alias_kind":"pith_short_12","alias_value":"RVXBURZTGS7Y","created_at":"2026-07-05T01:12:46Z"},{"alias_kind":"pith_short_16","alias_value":"RVXBURZTGS7YRT7N","created_at":"2026-07-05T01:12:46Z"},{"alias_kind":"pith_short_8","alias_value":"RVXBURZT","created_at":"2026-07-05T01:12:46Z"}],"graph_snapshots":[{"event_id":"sha256:2a192ae62137680939906834578d78aeb78e699908910852916c98835cea61f6","target":"graph","created_at":"2026-07-05T01:12:46Z","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/2005.08462/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supernova remnants (SNRs) have been regarded as major acceleration sites of Galactic cosmic rays. Recent X-ray studies revealed neutral Fe K$\\alpha$ line emission from dense gas in the vicinity of some SNRs, which can be best interpreted as K-shell ionization of Fe atoms in the gas by sub-relativistic particles accelerated in the SNRs. In this Letter, we propose a novel method of constraining the composition of particles accelerated in SNRs, which is currently unknown. When energetic heavy ions collide with target atoms, their strong Coulomb field can easily cause simultaneous ejection of mult","authors_text":"Hiromichi Okon, Hiroyuki Uchida, Makoto Imai, Takaaki Tanaka, Takeshi Go Tsuru","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-05-18T05:16:46Z","title":"Probing Cosmic Rays with Fe K$\\alpha$ Line Structures Generated by Multiple Ionization Process"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.08462","kind":"arxiv","version":2},"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":"sha256:02829e3e538367987897fdf688aefd9b9cc7411f4c8cd8abfeef6b488f71f68b","target":"record","created_at":"2026-07-05T01:12:46Z","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":"b4b046e7717e985d4aa8f055eb80458495089662f042f3f92da9ee9d80815d07","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-05-18T05:16:46Z","title_canon_sha256":"e5b30d7c2a393342515b33f02ac245a9dd5b18312067e2f9edccb3a9b1575338"},"schema_version":"1.0","source":{"id":"2005.08462","kind":"arxiv","version":2}},"canonical_sha256":"8d6e1a473334bf88cfed6e7c460604a5f70f342e6f1cc47a41d5246fe10effb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d6e1a473334bf88cfed6e7c460604a5f70f342e6f1cc47a41d5246fe10effb2","first_computed_at":"2026-07-05T01:12:46.897095Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:12:46.897095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AN91Islvk+XffIOWjJuEaYAnTwQpP5QwZhZ1TSxgrmWIR2nZyhiAuWnl6yNeiW+vRlZtzvIdRVOTq0YAWrOeDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:12:46.897510Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.08462","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02829e3e538367987897fdf688aefd9b9cc7411f4c8cd8abfeef6b488f71f68b","sha256:2a192ae62137680939906834578d78aeb78e699908910852916c98835cea61f6"],"state_sha256":"6f35957668af544726986a4993d755fb5ec51407e03290be161964005a940cd0"}