{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:JR23WHLNVUCSDJ5H4RULLZ6TZX","short_pith_number":"pith:JR23WHLN","canonical_record":{"source":{"id":"0809.2265","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-12T18:25:13Z","cross_cats_sorted":[],"title_canon_sha256":"4760c62d4e5df44e05d7aef54baa30f3fac3860c8b460157261209d05f14f875","abstract_canon_sha256":"b92ec68d50c04091f28949830836c027f036d237ff85046a2ab021e441bdf682"},"schema_version":"1.0"},"canonical_sha256":"4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308","source":{"kind":"arxiv","id":"0809.2265","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.2265","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"0809.2265v1","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.2265","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"JR23WHLNVUCS","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_16","alias_value":"JR23WHLNVUCSDJ5H","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_8","alias_value":"JR23WHLN","created_at":"2026-07-04T15:14:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:JR23WHLNVUCSDJ5H4RULLZ6TZX","target":"record","payload":{"canonical_record":{"source":{"id":"0809.2265","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-12T18:25:13Z","cross_cats_sorted":[],"title_canon_sha256":"4760c62d4e5df44e05d7aef54baa30f3fac3860c8b460157261209d05f14f875","abstract_canon_sha256":"b92ec68d50c04091f28949830836c027f036d237ff85046a2ab021e441bdf682"},"schema_version":"1.0"},"canonical_sha256":"4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:14:17.234709Z","signature_b64":"C5zcjyEtNLypneDKoSi7asAkDAnnKRCRWuKBlTG8Bv1v5W7UEvLcX8gOg1wpzCDWzyVAlUWMpx5IWmO5/eivBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308","last_reissued_at":"2026-07-04T15:14:17.234286Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:14:17.234286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0809.2265","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":"2026-07-04T15:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4lTOIgADELjYcuB7Hy/VXbqNdbWyUwNJp+5Vo3mTsS1dt/dsqSIbP172wBXr4uOFJg7v8mt4hzdk6Zc/uKITDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:04:45.698249Z"},"content_sha256":"dbfaafc4f2d675bc2ee6348af8ee0fc10938fdefcad13635cf317fddb338c8c9","schema_version":"1.0","event_id":"sha256:dbfaafc4f2d675bc2ee6348af8ee0fc10938fdefcad13635cf317fddb338c8c9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:JR23WHLNVUCSDJ5H4RULLZ6TZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"2XMM J100451.6+411627: A cool core cluster at z=0.82","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Axel Schwope, Georg Lamer, Jan Kohnert, Matthias Hoeft","submitted_at":"2008-09-12T18:25:13Z","abstract_excerpt":"- Aims: Gas cooling in the centre of massive galaxy clusters is believed to feed the most powerful active galactic nuclei in the Universe. How often clusters at high redshift show such cool cores has still to be explored by current and upcoming X-ray telescopes. - Methods: We correlated extended X-ray emissions from the second XMM-Newton source catalogue with SDSS data to particularly identify distant clusters. 2XMM J100451.6+411627 is a candidate luminous enough to obtain its redshift and temperature from the X-ray spectrum. We also determine the surface luminosity profile and estimate the te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.2265","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0809.2265/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:14:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2LXLzp+Opgd7tJizzaUmW0mqH0TrEeARy7dImcpphnexYF1xkJwNwV9mCOKTAoWJq+hRMHFULsURW2JPSigmCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:04:45.698853Z"},"content_sha256":"53529974e716a23399ef1615095c16dbc832789a3ae238a9974e06c29129cacf","schema_version":"1.0","event_id":"sha256:53529974e716a23399ef1615095c16dbc832789a3ae238a9974e06c29129cacf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/bundle.json","state_url":"https://pith.science/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/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":"2026-08-03T22:04:45Z","links":{"resolver":"https://pith.science/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX","bundle":"https://pith.science/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/bundle.json","state":"https://pith.science/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JR23WHLNVUCSDJ5H4RULLZ6TZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:JR23WHLNVUCSDJ5H4RULLZ6TZX","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":"b92ec68d50c04091f28949830836c027f036d237ff85046a2ab021e441bdf682","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-12T18:25:13Z","title_canon_sha256":"4760c62d4e5df44e05d7aef54baa30f3fac3860c8b460157261209d05f14f875"},"schema_version":"1.0","source":{"id":"0809.2265","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.2265","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"arxiv_version","alias_value":"0809.2265v1","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.2265","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_12","alias_value":"JR23WHLNVUCS","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_16","alias_value":"JR23WHLNVUCSDJ5H","created_at":"2026-07-04T15:14:17Z"},{"alias_kind":"pith_short_8","alias_value":"JR23WHLN","created_at":"2026-07-04T15:14:17Z"}],"graph_snapshots":[{"event_id":"sha256:53529974e716a23399ef1615095c16dbc832789a3ae238a9974e06c29129cacf","target":"graph","created_at":"2026-07-04T15:14:17Z","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/0809.2265/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"- Aims: Gas cooling in the centre of massive galaxy clusters is believed to feed the most powerful active galactic nuclei in the Universe. How often clusters at high redshift show such cool cores has still to be explored by current and upcoming X-ray telescopes. - Methods: We correlated extended X-ray emissions from the second XMM-Newton source catalogue with SDSS data to particularly identify distant clusters. 2XMM J100451.6+411627 is a candidate luminous enough to obtain its redshift and temperature from the X-ray spectrum. We also determine the surface luminosity profile and estimate the te","authors_text":"Axel Schwope, Georg Lamer, Jan Kohnert, Matthias Hoeft","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-12T18:25:13Z","title":"2XMM J100451.6+411627: A cool core cluster at z=0.82"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.2265","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:dbfaafc4f2d675bc2ee6348af8ee0fc10938fdefcad13635cf317fddb338c8c9","target":"record","created_at":"2026-07-04T15:14:17Z","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":"b92ec68d50c04091f28949830836c027f036d237ff85046a2ab021e441bdf682","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-09-12T18:25:13Z","title_canon_sha256":"4760c62d4e5df44e05d7aef54baa30f3fac3860c8b460157261209d05f14f875"},"schema_version":"1.0","source":{"id":"0809.2265","kind":"arxiv","version":1}},"canonical_sha256":"4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c75bb1d6dad0521a7a7e468b5e7d3cdde5a051ad393498eec6e0cd6ac81a308","first_computed_at":"2026-07-04T15:14:17.234286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:14:17.234286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C5zcjyEtNLypneDKoSi7asAkDAnnKRCRWuKBlTG8Bv1v5W7UEvLcX8gOg1wpzCDWzyVAlUWMpx5IWmO5/eivBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T15:14:17.234709Z","signed_message":"canonical_sha256_bytes"},"source_id":"0809.2265","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbfaafc4f2d675bc2ee6348af8ee0fc10938fdefcad13635cf317fddb338c8c9","sha256:53529974e716a23399ef1615095c16dbc832789a3ae238a9974e06c29129cacf"],"state_sha256":"b825cfcb2fa61458aff714180b47db3ffc989fad0434a3615669cb4b456a280c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NrePbNftn6GGrMy7OHT5/raW348alIUck7t4FRT3AaseSyTv+zokqMRHS/ab54scn9fcp7ZAJudhqvTIhEedDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T22:04:45.704550Z","bundle_sha256":"26ce565d4b424cd4edef4be6e4ba16e67ba6b057f4545c74ded0d852c1fadab1"}}