{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:NXWPATAAMBDA3Q2BG63FPZ5J6D","short_pith_number":"pith:NXWPATAA","canonical_record":{"source":{"id":"2408.14297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-26T14:28:41Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"26142bd3a34bb1a13f5f133fe749964e3686feb9ae2990eb5e6fb5b23ae584a3","abstract_canon_sha256":"8dcff19d1817e27f86f45da167c1f34c75ce0419d0117510d9b1cb1fec21278d"},"schema_version":"1.0"},"canonical_sha256":"6decf04c0060460dc34137b657e7a9f0c21ed7fff640423332e9718a2989009f","source":{"kind":"arxiv","id":"2408.14297","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.14297","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"arxiv_version","alias_value":"2408.14297v2","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.14297","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_12","alias_value":"NXWPATAAMBDA","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_16","alias_value":"NXWPATAAMBDA3Q2B","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_8","alias_value":"NXWPATAA","created_at":"2026-07-05T09:34:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:NXWPATAAMBDA3Q2BG63FPZ5J6D","target":"record","payload":{"canonical_record":{"source":{"id":"2408.14297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-26T14:28:41Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"26142bd3a34bb1a13f5f133fe749964e3686feb9ae2990eb5e6fb5b23ae584a3","abstract_canon_sha256":"8dcff19d1817e27f86f45da167c1f34c75ce0419d0117510d9b1cb1fec21278d"},"schema_version":"1.0"},"canonical_sha256":"6decf04c0060460dc34137b657e7a9f0c21ed7fff640423332e9718a2989009f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:34:57.677121Z","signature_b64":"FPu6Xj8G4kXdkSMpTffgoIwd1kBWvaR1AKG6Rw/nBSQSun2esfzOgzeutg+ecS4ITIfSFfLcEyWemDZm1wX2Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6decf04c0060460dc34137b657e7a9f0c21ed7fff640423332e9718a2989009f","last_reissued_at":"2026-07-05T09:34:57.676645Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:34:57.676645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.14297","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":"2026-07-05T09:34:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F7z07Enam95NrBN+ucau7N36oT1OFgLh57L/FxttNDIDQUEYw1njeNdg4DKgixjXNsn0mPOIY+JlRvlz6fgeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:50:15.626054Z"},"content_sha256":"4224d2ed60f8c89c89988bb5114bf06ed10324bba3fbfbdc4cbfc62cd31b2dbc","schema_version":"1.0","event_id":"sha256:4224d2ed60f8c89c89988bb5114bf06ed10324bba3fbfbdc4cbfc62cd31b2dbc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:NXWPATAAMBDA3Q2BG63FPZ5J6D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray AGN in Bo\\\"otes: The lack of growth of the most massive black holes since z=4","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Alison L. Coil, Amy L. Rankine, Antonis Georgakakis, Bryan A. Terrazas, Cassandra Barlow-Hall, James Aird, Paloma Guetzoyan, Ryan C. Hickox","submitted_at":"2024-08-26T14:28:41Z","abstract_excerpt":"Supermassive Black Holes (BHs) are known to efficiently grow through gas accretion, but even sustained and intense mass build-up through this mechanism struggles to explain the assembly of the most massive BHs observed in the local Universe. Using the Chandra Deep-Wide Field Survey (CDFWS) in the Bo\\\"otes field, we measure BH--galaxy assembly in massive galaxies ($M_\\star\\gtrsim10^{10}\\rm M_\\odot$) through the AGN fraction and specific Black Hole accretion rate (sBHAR) distribution as a function of redshift and stellar mass. We determine stellar masses and star formation rates for a parent sam"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.14297","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.14297/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":"2026-07-05T09:34:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zEVpVpaZ2aHF0Rhh0YcmqRWpx6f+Oxt5T1wmfh/3sIY6U2ZagbkhySFzypSli1PVehzSuXhBpjlIzbNudm4uAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T12:50:15.626442Z"},"content_sha256":"271fca8cc2ac5fa11a8fdc9d068e495e923565d97cadcccced25378e321515a2","schema_version":"1.0","event_id":"sha256:271fca8cc2ac5fa11a8fdc9d068e495e923565d97cadcccced25378e321515a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/bundle.json","state_url":"https://pith.science/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/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":"2026-08-13T12:50:15Z","links":{"resolver":"https://pith.science/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D","bundle":"https://pith.science/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/bundle.json","state":"https://pith.science/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NXWPATAAMBDA3Q2BG63FPZ5J6D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:NXWPATAAMBDA3Q2BG63FPZ5J6D","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":"8dcff19d1817e27f86f45da167c1f34c75ce0419d0117510d9b1cb1fec21278d","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-26T14:28:41Z","title_canon_sha256":"26142bd3a34bb1a13f5f133fe749964e3686feb9ae2990eb5e6fb5b23ae584a3"},"schema_version":"1.0","source":{"id":"2408.14297","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.14297","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"arxiv_version","alias_value":"2408.14297v2","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.14297","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_12","alias_value":"NXWPATAAMBDA","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_16","alias_value":"NXWPATAAMBDA3Q2B","created_at":"2026-07-05T09:34:57Z"},{"alias_kind":"pith_short_8","alias_value":"NXWPATAA","created_at":"2026-07-05T09:34:57Z"}],"graph_snapshots":[{"event_id":"sha256:271fca8cc2ac5fa11a8fdc9d068e495e923565d97cadcccced25378e321515a2","target":"graph","created_at":"2026-07-05T09:34:57Z","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/2408.14297/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Supermassive Black Holes (BHs) are known to efficiently grow through gas accretion, but even sustained and intense mass build-up through this mechanism struggles to explain the assembly of the most massive BHs observed in the local Universe. Using the Chandra Deep-Wide Field Survey (CDFWS) in the Bo\\\"otes field, we measure BH--galaxy assembly in massive galaxies ($M_\\star\\gtrsim10^{10}\\rm M_\\odot$) through the AGN fraction and specific Black Hole accretion rate (sBHAR) distribution as a function of redshift and stellar mass. We determine stellar masses and star formation rates for a parent sam","authors_text":"Alison L. Coil, Amy L. Rankine, Antonis Georgakakis, Bryan A. Terrazas, Cassandra Barlow-Hall, James Aird, Paloma Guetzoyan, Ryan C. Hickox","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-26T14:28:41Z","title":"X-ray AGN in Bo\\\"otes: The lack of growth of the most massive black holes since z=4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.14297","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":"sha256:4224d2ed60f8c89c89988bb5114bf06ed10324bba3fbfbdc4cbfc62cd31b2dbc","target":"record","created_at":"2026-07-05T09:34:57Z","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":"8dcff19d1817e27f86f45da167c1f34c75ce0419d0117510d9b1cb1fec21278d","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-26T14:28:41Z","title_canon_sha256":"26142bd3a34bb1a13f5f133fe749964e3686feb9ae2990eb5e6fb5b23ae584a3"},"schema_version":"1.0","source":{"id":"2408.14297","kind":"arxiv","version":2}},"canonical_sha256":"6decf04c0060460dc34137b657e7a9f0c21ed7fff640423332e9718a2989009f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6decf04c0060460dc34137b657e7a9f0c21ed7fff640423332e9718a2989009f","first_computed_at":"2026-07-05T09:34:57.676645Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:34:57.676645Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FPu6Xj8G4kXdkSMpTffgoIwd1kBWvaR1AKG6Rw/nBSQSun2esfzOgzeutg+ecS4ITIfSFfLcEyWemDZm1wX2Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:34:57.677121Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.14297","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4224d2ed60f8c89c89988bb5114bf06ed10324bba3fbfbdc4cbfc62cd31b2dbc","sha256:271fca8cc2ac5fa11a8fdc9d068e495e923565d97cadcccced25378e321515a2"],"state_sha256":"9cac3570e88aee8e61e303a6a5ab3e6019266eaeeeec395cfb27708e9b5f5fe3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ot2I+WOOLR7NRmcTbxxzzS90rRIPEUAm7sZ2X0FVy1gVQgCOb4GHrQAL5nm8OlPCrKaJcyQ695c+mtzDKy5pCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T12:50:15.628903Z","bundle_sha256":"6805ffe4eaf34a72d9b0eb7f36d2efc70bd46fd8f09f6a18e80334f10066df22"}}