{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:UIJPK5YV5KB6MYYSDQXQTJGU5J","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":"95a4d6559874405b96ef72f68e2c6ea023b16d44ed5645b5787a7e9d4fee6c23","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-16T11:40:29Z","title_canon_sha256":"f1b6686d96c8efb637444d6057dc1546347cedff5a710a51a42ae50cf530854a"},"schema_version":"1.0","source":{"id":"1912.07300","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.07300","created_at":"2026-07-05T00:53:09Z"},{"alias_kind":"arxiv_version","alias_value":"1912.07300v2","created_at":"2026-07-05T00:53:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.07300","created_at":"2026-07-05T00:53:09Z"},{"alias_kind":"pith_short_12","alias_value":"UIJPK5YV5KB6","created_at":"2026-07-05T00:53:09Z"},{"alias_kind":"pith_short_16","alias_value":"UIJPK5YV5KB6MYYS","created_at":"2026-07-05T00:53:09Z"},{"alias_kind":"pith_short_8","alias_value":"UIJPK5YV","created_at":"2026-07-05T00:53:09Z"}],"graph_snapshots":[{"event_id":"sha256:00674e9419e7a5d1be07a8a7d7ce8b949cc200a6f04c5b69864de758dcb27ab8","target":"graph","created_at":"2026-07-05T00:53:09Z","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/1912.07300/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a systematic study of gas density perturbations in cool cores of high-mass galaxy clusters. We select 12 relaxed clusters from the Cluster Lensing And Supernova survey with Hubble (CLASH) sample and analyze their cool core features observed with the Chandra X-ray Observatory. We focus on the X-ray residual image characteristics after subtracting their global profile of the X-ray surface brightness distribution. We find that all the galaxy clusters in our sample have, at least, both one positive and one negative excess regions in the X-ray residual image, indicating the presence of g","authors_text":"Keiichi Umetsu, Sandor M. Molnar, Shutaro Ueda, Tetsu Kitayama, Yuto Ichinohe","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-16T11:40:29Z","title":"Gas Density Perturbations in Cool Cores of CLASH Galaxy Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.07300","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:ef150b3fbe882d9199dbc29466a10d5faa0a3883f5b439ff8166eed3e2c8d2fd","target":"record","created_at":"2026-07-05T00:53:09Z","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":"95a4d6559874405b96ef72f68e2c6ea023b16d44ed5645b5787a7e9d4fee6c23","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-12-16T11:40:29Z","title_canon_sha256":"f1b6686d96c8efb637444d6057dc1546347cedff5a710a51a42ae50cf530854a"},"schema_version":"1.0","source":{"id":"1912.07300","kind":"arxiv","version":2}},"canonical_sha256":"a212f57715ea83e663121c2f09a4d4ea7c452f1458b7b0d8eae0a02034ad7d2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a212f57715ea83e663121c2f09a4d4ea7c452f1458b7b0d8eae0a02034ad7d2d","first_computed_at":"2026-07-05T00:53:09.785655Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:53:09.785655Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lFpvmZSA1xzKSyg+MYb6MCC9E6iY8illK9q63XH7ns1LCJi8kVnTFvoKlp5U3+KFCONsPK3YJIHjCgUJIZYSDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:53:09.786151Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.07300","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef150b3fbe882d9199dbc29466a10d5faa0a3883f5b439ff8166eed3e2c8d2fd","sha256:00674e9419e7a5d1be07a8a7d7ce8b949cc200a6f04c5b69864de758dcb27ab8"],"state_sha256":"a273cc67cf0ece943027712aea4d6c93a74475d6614f4082278b0c8de408127a"}