{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:C5MRFASODKP5FMFT5BGAKSXAYM","short_pith_number":"pith:C5MRFASO","canonical_record":{"source":{"id":"1510.07046","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-23T20:05:03Z","cross_cats_sorted":[],"title_canon_sha256":"82ea26652b6bc3fa5c9849799c3dc6c47122926f2c4e9871337021c6412f50f7","abstract_canon_sha256":"36dbd12f3d231d84ae68baa40f381a542fa657d79625a2a9889ded9d31ae2811"},"schema_version":"1.0"},"canonical_sha256":"175912824e1a9fd2b0b3e84c054ae0c32e81822815246ea4ce73a2ef2d7f8e18","source":{"kind":"arxiv","id":"1510.07046","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07046","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07046v2","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07046","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"pith_short_12","alias_value":"C5MRFASODKP5","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C5MRFASODKP5FMFT","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C5MRFASO","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:C5MRFASODKP5FMFT5BGAKSXAYM","target":"record","payload":{"canonical_record":{"source":{"id":"1510.07046","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-23T20:05:03Z","cross_cats_sorted":[],"title_canon_sha256":"82ea26652b6bc3fa5c9849799c3dc6c47122926f2c4e9871337021c6412f50f7","abstract_canon_sha256":"36dbd12f3d231d84ae68baa40f381a542fa657d79625a2a9889ded9d31ae2811"},"schema_version":"1.0"},"canonical_sha256":"175912824e1a9fd2b0b3e84c054ae0c32e81822815246ea4ce73a2ef2d7f8e18","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:07.444055Z","signature_b64":"/1QV/MRLfb5Q9G1vx9Dxsagg5uFquIdi1GCFQH25H/wxg8f2PSXn7PuWP/Zt3uy9/lbZliuOR0j5kdfU+zYyDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"175912824e1a9fd2b0b3e84c054ae0c32e81822815246ea4ce73a2ef2d7f8e18","last_reissued_at":"2026-05-18T00:28:07.443244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:07.443244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.07046","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:28:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6CT3VVAx6YXJwRDs/2vIOiVaKWT1i9ObhjOUlmSUGFCEXZ1ARUTMq3SmpaLenwohz1g4N89oIvD8V8UikOSNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T23:26:35.488909Z"},"content_sha256":"719656edf661294c2ce807a23949f7cad7039742f0d5a67c837ed793eada23da","schema_version":"1.0","event_id":"sha256:719656edf661294c2ce807a23949f7cad7039742f0d5a67c837ed793eada23da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:C5MRFASODKP5FMFT5BGAKSXAYM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Relationship Between Halo Mass, Cooling, AGN Heating, and the Coevolution of Massive Black Holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Adrian Vantyghem, Brian McNamara, Helen Russell, Paul Nulsen, Robert Main","submitted_at":"2015-10-23T20:05:03Z","abstract_excerpt":"We derive X-ray mass, luminosity, and temperature profiles for 45 galaxy clusters to explore relationships between halo mass, AGN feedback, and central cooling time. We find that radio--mechanical feedback power (referred to here as \"AGN power\") in central cluster galaxies correlates with halo mass as P$_{\\rm mech}$ $\\propto$ M$^{1.55\\pm0.26}$, but only in halos with central atmospheric cooling times shorter than 1 Gyr. The trend of AGN power with halo mass is consistent with the scaling expected from a self-regulating AGN feedback loop, as well as with galaxy and central black hole co-evoluti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07046","kind":"arxiv","version":2},"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":"2026-05-18T00:28:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JZlKtMB1nYgvx65Xl70HXAw0Wr1uAbY7y7GDyO5V7+9L6uGAT1k4fAT/SHRTR8bCNUeEtdth95DULm51fX5LCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T23:26:35.489509Z"},"content_sha256":"5962795cad484d0d467fd71a090f4ae2ee403f345b5a998cd415084ea1c6a8de","schema_version":"1.0","event_id":"sha256:5962795cad484d0d467fd71a090f4ae2ee403f345b5a998cd415084ea1c6a8de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C5MRFASODKP5FMFT5BGAKSXAYM/bundle.json","state_url":"https://pith.science/pith/C5MRFASODKP5FMFT5BGAKSXAYM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C5MRFASODKP5FMFT5BGAKSXAYM/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":"2026-05-21T23:26:35Z","links":{"resolver":"https://pith.science/pith/C5MRFASODKP5FMFT5BGAKSXAYM","bundle":"https://pith.science/pith/C5MRFASODKP5FMFT5BGAKSXAYM/bundle.json","state":"https://pith.science/pith/C5MRFASODKP5FMFT5BGAKSXAYM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C5MRFASODKP5FMFT5BGAKSXAYM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:C5MRFASODKP5FMFT5BGAKSXAYM","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":"36dbd12f3d231d84ae68baa40f381a542fa657d79625a2a9889ded9d31ae2811","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-23T20:05:03Z","title_canon_sha256":"82ea26652b6bc3fa5c9849799c3dc6c47122926f2c4e9871337021c6412f50f7"},"schema_version":"1.0","source":{"id":"1510.07046","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07046","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07046v2","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07046","created_at":"2026-05-18T00:28:07Z"},{"alias_kind":"pith_short_12","alias_value":"C5MRFASODKP5","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"C5MRFASODKP5FMFT","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"C5MRFASO","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:5962795cad484d0d467fd71a090f4ae2ee403f345b5a998cd415084ea1c6a8de","target":"graph","created_at":"2026-05-18T00:28:07Z","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 derive X-ray mass, luminosity, and temperature profiles for 45 galaxy clusters to explore relationships between halo mass, AGN feedback, and central cooling time. We find that radio--mechanical feedback power (referred to here as \"AGN power\") in central cluster galaxies correlates with halo mass as P$_{\\rm mech}$ $\\propto$ M$^{1.55\\pm0.26}$, but only in halos with central atmospheric cooling times shorter than 1 Gyr. The trend of AGN power with halo mass is consistent with the scaling expected from a self-regulating AGN feedback loop, as well as with galaxy and central black hole co-evoluti","authors_text":"Adrian Vantyghem, Brian McNamara, Helen Russell, Paul Nulsen, Robert Main","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-23T20:05:03Z","title":"A Relationship Between Halo Mass, Cooling, AGN Heating, and the Coevolution of Massive Black Holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07046","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":"sha256:719656edf661294c2ce807a23949f7cad7039742f0d5a67c837ed793eada23da","target":"record","created_at":"2026-05-18T00:28:07Z","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":"36dbd12f3d231d84ae68baa40f381a542fa657d79625a2a9889ded9d31ae2811","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-10-23T20:05:03Z","title_canon_sha256":"82ea26652b6bc3fa5c9849799c3dc6c47122926f2c4e9871337021c6412f50f7"},"schema_version":"1.0","source":{"id":"1510.07046","kind":"arxiv","version":2}},"canonical_sha256":"175912824e1a9fd2b0b3e84c054ae0c32e81822815246ea4ce73a2ef2d7f8e18","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"175912824e1a9fd2b0b3e84c054ae0c32e81822815246ea4ce73a2ef2d7f8e18","first_computed_at":"2026-05-18T00:28:07.443244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:07.443244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/1QV/MRLfb5Q9G1vx9Dxsagg5uFquIdi1GCFQH25H/wxg8f2PSXn7PuWP/Zt3uy9/lbZliuOR0j5kdfU+zYyDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:07.444055Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.07046","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:719656edf661294c2ce807a23949f7cad7039742f0d5a67c837ed793eada23da","sha256:5962795cad484d0d467fd71a090f4ae2ee403f345b5a998cd415084ea1c6a8de"],"state_sha256":"1b7b61e32f3f47c3e7708587a8ea0472cef658ac442463693d6cc7255ce75ebe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sp12MK8MqwdiiiRSjlWcQQqTRC1baBZv/Fh6qgdEnHrSs0fAixXmICx4YYXjOf2bIT04JxqMuwehii1ZcrE8Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T23:26:35.491586Z","bundle_sha256":"bd750836c085dc89d3eaf14d0e94940a67997acb332ff62eed5d49ffdb2faa00"}}