{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:MLZ4GIKFXPCJEGW733M5JWHUT5","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":"b26632ff43019c37c7d25ceb2d60b3ce55af9e533cc33508738b3623eb6e3fe0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-04-23T13:41:03Z","title_canon_sha256":"64902730a4510ffce6ca675d4618f835f941936c93caef342f19e7b40ff01ad1"},"schema_version":"1.0","source":{"id":"1004.4132","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1004.4132","created_at":"2026-05-18T02:07:54Z"},{"alias_kind":"arxiv_version","alias_value":"1004.4132v1","created_at":"2026-05-18T02:07:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1004.4132","created_at":"2026-05-18T02:07:54Z"},{"alias_kind":"pith_short_12","alias_value":"MLZ4GIKFXPCJ","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"MLZ4GIKFXPCJEGW7","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"MLZ4GIKF","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:bd55b35cdbaece18a1846e62151a362fe87aa9111f993509f8972fcbfae8c91b","target":"graph","created_at":"2026-05-18T02:07:54Z","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"},"paper":{"abstract_excerpt":"We report on the discovery of X-ray--emitting O-Ne-Mg-rich ejecta in the middle-aged Galactic O-rich supernova remnant Puppis A with Chandra and XMM-Newton.  We use line ratios to identify a low-ionization filament running parallel to the northeastern edge of the remnant that requires supersolar abundances, particularly for O, Ne, and Mg, which we interpret to be from O-Ne-Mg-rich ejecta.  Abundance ratios of Ne/O, Mg/O, and Fe/O are measured to be ~2, ~2, and <0.3 times the solar values.  Our spatially-resolved spectral analysis from the northeastern rim to the western rim otherwise reveals s","authors_text":"2), 2 JHU, 3 PSU, 4 Miyazaki U., 5 Osaka U.), Hiroshi Tsunemi (5) (1 NASA/GSFC, Koji Mori (4), Robert Petre (1), Sangwook Park (3), Satoru Katsuda (1), Una Hwang (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-04-23T13:41:03Z","title":"Discovery of X-Ray-Emitting O-Ne-Mg-Rich Ejecta in the Galactic Supernova Remnant Puppis A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.4132","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":"sha256:41c851e75a4293019a6dcf06a941c0e763fbf69b5c49b0baf52fcd6aa607c11b","target":"record","created_at":"2026-05-18T02:07:54Z","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":"b26632ff43019c37c7d25ceb2d60b3ce55af9e533cc33508738b3623eb6e3fe0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-04-23T13:41:03Z","title_canon_sha256":"64902730a4510ffce6ca675d4618f835f941936c93caef342f19e7b40ff01ad1"},"schema_version":"1.0","source":{"id":"1004.4132","kind":"arxiv","version":1}},"canonical_sha256":"62f3c32145bbc4921adfded9d4d8f49f700c64ebc04dc14292e5c1fb919a6889","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62f3c32145bbc4921adfded9d4d8f49f700c64ebc04dc14292e5c1fb919a6889","first_computed_at":"2026-05-18T02:07:54.622683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:54.622683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zJKYxd5KdKrilS9JyiFFGmKYvDGm/wsaRKcMDPSooU3j0ycOEhPvb3c9QiVCpysBWFL+PAQ1mfKnIEsnHK0VBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:54.623478Z","signed_message":"canonical_sha256_bytes"},"source_id":"1004.4132","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41c851e75a4293019a6dcf06a941c0e763fbf69b5c49b0baf52fcd6aa607c11b","sha256:bd55b35cdbaece18a1846e62151a362fe87aa9111f993509f8972fcbfae8c91b"],"state_sha256":"a6d0832067f2f91ef1ae910a4ae28f1d5de20f46f18e9e537a61fe21b7e74349"}