{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:QCTA7OE5Q3CHEJWIIAJ52MNFY2","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":"3a7c451abd356340bd3cc6af3bd2f73e125070ee6e6d068fa18c4f5974de230f","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-03T12:55:53Z","title_canon_sha256":"3e111d3f5fb9d3af5e9987f2387bd0af0e8ad3fdfd1efdfca101ffd10f138392"},"schema_version":"1.0","source":{"id":"1210.1093","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.1093","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"arxiv_version","alias_value":"1210.1093v1","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.1093","created_at":"2026-05-18T03:26:08Z"},{"alias_kind":"pith_short_12","alias_value":"QCTA7OE5Q3CH","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_16","alias_value":"QCTA7OE5Q3CHEJWI","created_at":"2026-05-18T12:27:18Z"},{"alias_kind":"pith_short_8","alias_value":"QCTA7OE5","created_at":"2026-05-18T12:27:18Z"}],"graph_snapshots":[{"event_id":"sha256:20db90f53c0afc13ae1ebcf9b7d1f5d0164aaa60d9e001d173da5e8048d433a0","target":"graph","created_at":"2026-05-18T03:26:08Z","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":"Metals play a fundamental role in ICM cooling processes in cluster cores through the emission of spectral lines. But when and how were these metals formed and distributed through the ICM? The X-ray band has the unique property of containing emission lines from all elements from carbon to zinc within the 0.1-10 keV band. Using XMM-Newton, the abundances of about 11 elements are studied, which contain valuable information about their origin. Most elements were formed in type Ia and core-collapse supernovae, which have very different chemical yields. Massive stars and AGB stars also contribute by","authors_text":"J. de Plaa","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-03T12:55:53Z","title":"The origin of the chemical elements in cluster cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.1093","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":"sha256:95cb0f7579fc59f18cbb7233cfc72c35291062e8f582b8446f8e31fdb724e4f3","target":"record","created_at":"2026-05-18T03:26:08Z","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":"3a7c451abd356340bd3cc6af3bd2f73e125070ee6e6d068fa18c4f5974de230f","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-03T12:55:53Z","title_canon_sha256":"3e111d3f5fb9d3af5e9987f2387bd0af0e8ad3fdfd1efdfca101ffd10f138392"},"schema_version":"1.0","source":{"id":"1210.1093","kind":"arxiv","version":1}},"canonical_sha256":"80a60fb89d86c47226c84013dd31a5c6bd406dd4168f6c3e354fdfeec0be6bbf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80a60fb89d86c47226c84013dd31a5c6bd406dd4168f6c3e354fdfeec0be6bbf","first_computed_at":"2026-05-18T03:26:08.769252Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:26:08.769252Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"i2LitKL2zoMYIXhukYbgqTkwjPHSMDVlUVVJ1G9I/qnl3WBHpBuDF0um8ywLVyWY7urejBBB6CWWMOWWIl5iBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:26:08.769930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.1093","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95cb0f7579fc59f18cbb7233cfc72c35291062e8f582b8446f8e31fdb724e4f3","sha256:20db90f53c0afc13ae1ebcf9b7d1f5d0164aaa60d9e001d173da5e8048d433a0"],"state_sha256":"d27457acf35df82fee91a28c0c356683c25523879f6dcbe190e9bc157ba36228"}