{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:2VXMQ2XQ5WOAP5YQDHC5DLM2IV","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":"40a701056a27b96a3eb603afdd033992015ab92908c74fbdd6661877f725b820","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T17:36:13Z","title_canon_sha256":"78e40dce198a2244bf0811f3aab0d9b792b190268340be8b54b9778ce3b12da8"},"schema_version":"1.0","source":{"id":"astro-ph/0010423","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0010423","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0010423v2","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0010423","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_12","alias_value":"2VXMQ2XQ5WOA","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_16","alias_value":"2VXMQ2XQ5WOAP5YQ","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_8","alias_value":"2VXMQ2XQ","created_at":"2026-07-04T16:17:26Z"}],"graph_snapshots":[{"event_id":"sha256:c0c02c3c57aa65591f19bd3f0fcdbc5d69851a51e62a3d3e5ddd9af631e021a3","target":"graph","created_at":"2026-07-04T16:17:26Z","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/0010423/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The cluster of galaxies Sersic 159-03 was observed with the XMM-Newton X-ray observatory as part of the Guaranteed Time program. X-ray spectra taken with the EPIC and RGS instruments show no evidence for the strong cooling flow derived from previous X-ray observations. There is a significant lack of cool gas below 1.5 keV as compared to standard isobaric cooling flow models. While the oxygen is distributed more or less uniformly over the cluster, iron shows a strong concentration in the center of the cluster, slightly offset from the brightness center but within the central cD galaxy. This poi","authors_text":"C. Ferrigno, F.B.S. Paerels, J.P.D. Mittaz, J.R. Peterson, J.S. Kaastra, T. Tamura","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T17:36:13Z","title":"XMM-Newton observations of the cluster of galaxies Sersic 159-03"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0010423","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:d6533591f53c990892d91cb721e288b3d582bc4c1402b00489c6a6caa8239b93","target":"record","created_at":"2026-07-04T16:17:26Z","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":"40a701056a27b96a3eb603afdd033992015ab92908c74fbdd6661877f725b820","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T17:36:13Z","title_canon_sha256":"78e40dce198a2244bf0811f3aab0d9b792b190268340be8b54b9778ce3b12da8"},"schema_version":"1.0","source":{"id":"astro-ph/0010423","kind":"arxiv","version":2}},"canonical_sha256":"d56ec86af0ed9c07f71019c5d1ad9a456d90b419cfc00f968ce266e1d9739aaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d56ec86af0ed9c07f71019c5d1ad9a456d90b419cfc00f968ce266e1d9739aaf","first_computed_at":"2026-07-04T16:17:26.396583Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:17:26.396583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OeSXDKENmodiE85Ap49sVbMLRNleCLgOfNKsIY77KkuExDMnc9GlsTfNdGHPBIni1LAie4cwZaRxNeATXELoCw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:17:26.397017Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0010423","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6533591f53c990892d91cb721e288b3d582bc4c1402b00489c6a6caa8239b93","sha256:c0c02c3c57aa65591f19bd3f0fcdbc5d69851a51e62a3d3e5ddd9af631e021a3"],"state_sha256":"9cc80fbba563cb7a3ef34ec4c1c815a652357a0c72575e9d059ffb7b375dd8fd"}