{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:3TFVE3FSZTETRU4X2R5HSFOATV","short_pith_number":"pith:3TFVE3FS","canonical_record":{"source":{"id":"0806.3747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-23T20:08:43Z","cross_cats_sorted":[],"title_canon_sha256":"5b61d86a5eaa5c2864c0ee53220b35a6f1940162ef553a5dd94a8c856388feca","abstract_canon_sha256":"f2d09e472c49ef7718b8e9915bda8008c8be85e2d06c4ca8dfea9061f4220888"},"schema_version":"1.0"},"canonical_sha256":"dccb526cb2ccc938d397d47a7915c09d4ec6b636e6ad85201406bc4116f49916","source":{"kind":"arxiv","id":"0806.3747","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.3747","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"0806.3747v1","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.3747","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"3TFVE3FSZTET","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"3TFVE3FSZTETRU4X","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"3TFVE3FS","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:3TFVE3FSZTETRU4X2R5HSFOATV","target":"record","payload":{"canonical_record":{"source":{"id":"0806.3747","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-23T20:08:43Z","cross_cats_sorted":[],"title_canon_sha256":"5b61d86a5eaa5c2864c0ee53220b35a6f1940162ef553a5dd94a8c856388feca","abstract_canon_sha256":"f2d09e472c49ef7718b8e9915bda8008c8be85e2d06c4ca8dfea9061f4220888"},"schema_version":"1.0"},"canonical_sha256":"dccb526cb2ccc938d397d47a7915c09d4ec6b636e6ad85201406bc4116f49916","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:51.174878Z","signature_b64":"L/U7jL3rHAA1h9BA76dqhH1bvkl/T8RDNauJP0ktgYNdmA3+wuDBMJRPG6LJqhowhBPbt703L0r7ueLexWvJDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dccb526cb2ccc938d397d47a7915c09d4ec6b636e6ad85201406bc4116f49916","last_reissued_at":"2026-05-18T02:15:51.174212Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:51.174212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.3747","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"65Dgl29+dPG5eIlPXxrol9xLj31UBehTGK9MMAQm/PTjVDpCWGZoVpCKjWmysHseILH+JN7u8HoTMpTMiEQ4DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:57:36.302100Z"},"content_sha256":"6b783b0b2341d9c88fc74f44306447b0fd1347d3cedac068fddd9e76d212abcc","schema_version":"1.0","event_id":"sha256:6b783b0b2341d9c88fc74f44306447b0fd1347d3cedac068fddd9e76d212abcc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:3TFVE3FSZTETRU4X2R5HSFOATV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Suzaku Observation of the Ophiuchus Galaxy Cluster: One of the Hottest Cool Core Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Craig L. Sarazin (Virginia), Hironori Matsumoto (Kyoto), Kiyoshi Hayashida, Masaaki Nagai (Osaka), Motokazu Takizawa (Yamagata), Nobuhiro Okabe (Tohoku), Susumu Inoue, Thomas. H. Reiprich (Bonn), Yutaka Fujita","submitted_at":"2008-06-23T20:08:43Z","abstract_excerpt":"We present the analysis of a Suzaku observation of the Ophiuchus galaxy cluster. We confirmed that the cluster has a cool core. While the temperature of the intracluster medium (ICM) decreases toward the center, the metal abundance increases. Except for the core (r<~50 kpc), the cluster is hot (~9-10 keV) and is almost isothermal for r<~1 Mpc; the latter contradicts a previous study. We do not detect the variation of the redshift of the ICM in the cluster; the upper limit of the velocity difference is 3000 km s^-1. The iron line ratios in X-ray spectra indicate that the ICM has reached the ion"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.3747","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0qAKk+mWdx69TWdf8JYQ2cpxxKYeAJHPzUSU13jq7D7Sfc18tvKpwqEDdpytp34CEQtPEfJUBByov2QAeW5cBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:57:36.302750Z"},"content_sha256":"32beb329f4dc1bfd6443a4250be570593dbed2dd1e748e05da1f17eab66b8d19","schema_version":"1.0","event_id":"sha256:32beb329f4dc1bfd6443a4250be570593dbed2dd1e748e05da1f17eab66b8d19"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3TFVE3FSZTETRU4X2R5HSFOATV/bundle.json","state_url":"https://pith.science/pith/3TFVE3FSZTETRU4X2R5HSFOATV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3TFVE3FSZTETRU4X2R5HSFOATV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-28T21:57:36Z","links":{"resolver":"https://pith.science/pith/3TFVE3FSZTETRU4X2R5HSFOATV","bundle":"https://pith.science/pith/3TFVE3FSZTETRU4X2R5HSFOATV/bundle.json","state":"https://pith.science/pith/3TFVE3FSZTETRU4X2R5HSFOATV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3TFVE3FSZTETRU4X2R5HSFOATV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:3TFVE3FSZTETRU4X2R5HSFOATV","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":"f2d09e472c49ef7718b8e9915bda8008c8be85e2d06c4ca8dfea9061f4220888","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-23T20:08:43Z","title_canon_sha256":"5b61d86a5eaa5c2864c0ee53220b35a6f1940162ef553a5dd94a8c856388feca"},"schema_version":"1.0","source":{"id":"0806.3747","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.3747","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"0806.3747v1","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.3747","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"3TFVE3FSZTET","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"3TFVE3FSZTETRU4X","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"3TFVE3FS","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:32beb329f4dc1bfd6443a4250be570593dbed2dd1e748e05da1f17eab66b8d19","target":"graph","created_at":"2026-05-18T02:15:51Z","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 present the analysis of a Suzaku observation of the Ophiuchus galaxy cluster. We confirmed that the cluster has a cool core. While the temperature of the intracluster medium (ICM) decreases toward the center, the metal abundance increases. Except for the core (r<~50 kpc), the cluster is hot (~9-10 keV) and is almost isothermal for r<~1 Mpc; the latter contradicts a previous study. We do not detect the variation of the redshift of the ICM in the cluster; the upper limit of the velocity difference is 3000 km s^-1. The iron line ratios in X-ray spectra indicate that the ICM has reached the ion","authors_text":"Craig L. Sarazin (Virginia), Hironori Matsumoto (Kyoto), Kiyoshi Hayashida, Masaaki Nagai (Osaka), Motokazu Takizawa (Yamagata), Nobuhiro Okabe (Tohoku), Susumu Inoue, Thomas. H. Reiprich (Bonn), Yutaka Fujita","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-23T20:08:43Z","title":"Suzaku Observation of the Ophiuchus Galaxy Cluster: One of the Hottest Cool Core Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.3747","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":"sha256:6b783b0b2341d9c88fc74f44306447b0fd1347d3cedac068fddd9e76d212abcc","target":"record","created_at":"2026-05-18T02:15:51Z","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":"f2d09e472c49ef7718b8e9915bda8008c8be85e2d06c4ca8dfea9061f4220888","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-23T20:08:43Z","title_canon_sha256":"5b61d86a5eaa5c2864c0ee53220b35a6f1940162ef553a5dd94a8c856388feca"},"schema_version":"1.0","source":{"id":"0806.3747","kind":"arxiv","version":1}},"canonical_sha256":"dccb526cb2ccc938d397d47a7915c09d4ec6b636e6ad85201406bc4116f49916","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dccb526cb2ccc938d397d47a7915c09d4ec6b636e6ad85201406bc4116f49916","first_computed_at":"2026-05-18T02:15:51.174212Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:51.174212Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L/U7jL3rHAA1h9BA76dqhH1bvkl/T8RDNauJP0ktgYNdmA3+wuDBMJRPG6LJqhowhBPbt703L0r7ueLexWvJDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:51.174878Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.3747","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b783b0b2341d9c88fc74f44306447b0fd1347d3cedac068fddd9e76d212abcc","sha256:32beb329f4dc1bfd6443a4250be570593dbed2dd1e748e05da1f17eab66b8d19"],"state_sha256":"f326e08e88773b3daeac4f86d1da0de7066426952745b8a8bcef2ec6ae8b100e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+KUQnJ/zx1JTgkmbco41XJyQXAr0sySc4J8wmN1Vkss1H2RNXv3Elj0/FkHeraiPcih7Hf5VyVRHtC6G/qVeDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:57:36.305594Z","bundle_sha256":"174ced2b7962d4093ba2f73e372c5b41482f1468ee15b316539efa79fcb34a8d"}}