{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:PLGJTTQLOKW676XI7LBFDRSAOZ","short_pith_number":"pith:PLGJTTQL","canonical_record":{"source":{"id":"2408.08492","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-16T02:26:17Z","cross_cats_sorted":[],"title_canon_sha256":"eb807965a57b954e0f40a84593b98b70c79cb984e2ca0fd8f0f18b5b4869aa00","abstract_canon_sha256":"9d2054be73e0e72a86d98592913b43d495894008451c2be39e1da5fde784773c"},"schema_version":"1.0"},"canonical_sha256":"7acc99ce0b72adeffae8fac251c64076697fa3faed2a9c69f88040143c600464","source":{"kind":"arxiv","id":"2408.08492","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.08492","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"arxiv_version","alias_value":"2408.08492v2","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.08492","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_12","alias_value":"PLGJTTQLOKW6","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_16","alias_value":"PLGJTTQLOKW676XI","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_8","alias_value":"PLGJTTQL","created_at":"2026-07-05T11:43:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:PLGJTTQLOKW676XI7LBFDRSAOZ","target":"record","payload":{"canonical_record":{"source":{"id":"2408.08492","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-16T02:26:17Z","cross_cats_sorted":[],"title_canon_sha256":"eb807965a57b954e0f40a84593b98b70c79cb984e2ca0fd8f0f18b5b4869aa00","abstract_canon_sha256":"9d2054be73e0e72a86d98592913b43d495894008451c2be39e1da5fde784773c"},"schema_version":"1.0"},"canonical_sha256":"7acc99ce0b72adeffae8fac251c64076697fa3faed2a9c69f88040143c600464","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:43:07.101225Z","signature_b64":"+d+ded3Z8lcAiw6ozWS7bacj4S9n1lawxd8wbaja6RFWUAy48gXy+i/DqQcqfB9sYdLs41JWcJmEFAYZXYIRDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7acc99ce0b72adeffae8fac251c64076697fa3faed2a9c69f88040143c600464","last_reissued_at":"2026-07-05T11:43:07.100586Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:43:07.100586Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.08492","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":"2026-07-05T11:43:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t0Tvp8586Fhwy3ZtOKupBxT9O4gZfQfZ+P8ioXVhCmUppnjWerFUX/608O0/yhP6qlPdv4SbXD+GiXJ1eYmABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:33:51.367539Z"},"content_sha256":"0db0ee67cadb0042d4371ce2da62cdd23cc4b0defd70e77aba7ef55626add118","schema_version":"1.0","event_id":"sha256:0db0ee67cadb0042d4371ce2da62cdd23cc4b0defd70e77aba7ef55626add118"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:PLGJTTQLOKW676XI7LBFDRSAOZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Black hole mass of a quiescent galaxy hosting a Type 1 AGN at z=2.09: Implications for black hole - galaxy co-evolution and AGN quenching at high redshift","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Francesco Valentino, Kazuhiro Shimasaku, Kei Ito, Makoto Ando, Masafusa Onoue, Masayuki Tanaka, Suin Matsui, Takumi Kakimoto, Takumi S. Tanaka","submitted_at":"2024-08-16T02:26:17Z","abstract_excerpt":"We report a characterization of an X-ray-detected quiescent galaxy at $z=2.09$, named COS-XQG1, using JWST/NIRCam and NIRSpec data. This galaxy is detected in Chandra imaging, suggesting the presence of an AGN with a high black hole accretion rate of $\\dot{M}_{\\rm BH}=0.22\\pm0.03\\, {\\rm M_\\odot yr^{-1}}$. Using multi-wavelength photometry from X-ray to sub-millimeter, including the latest JWST imaging, we confirm that COS-XQG1 is massive ($M_\\star = (1.6\\pm0.2)\\times10^{11}\\, M_\\odot$) and quiescent (${\\rm sSFR}<10^{-10}\\, {\\rm yr^{-1}}$) as reported previously, even considering the contributi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.08492","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/2408.08492/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":"2026-07-05T11:43:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L+YkUDF9kT1FHeaYrGtFnTe1BiAZuJN4qjD5GG09REH9/XxB5JgI0FZ2MESWr7VC0p318WON3mPgVGaXC2MhBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T08:33:51.368043Z"},"content_sha256":"890c2b71b6f75348adef7c94da94d7e8a45326d3fd574b944cc2ed0733aa5586","schema_version":"1.0","event_id":"sha256:890c2b71b6f75348adef7c94da94d7e8a45326d3fd574b944cc2ed0733aa5586"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/bundle.json","state_url":"https://pith.science/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/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":"2026-08-05T08:33:51Z","links":{"resolver":"https://pith.science/pith/PLGJTTQLOKW676XI7LBFDRSAOZ","bundle":"https://pith.science/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/bundle.json","state":"https://pith.science/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PLGJTTQLOKW676XI7LBFDRSAOZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:PLGJTTQLOKW676XI7LBFDRSAOZ","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":"9d2054be73e0e72a86d98592913b43d495894008451c2be39e1da5fde784773c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-16T02:26:17Z","title_canon_sha256":"eb807965a57b954e0f40a84593b98b70c79cb984e2ca0fd8f0f18b5b4869aa00"},"schema_version":"1.0","source":{"id":"2408.08492","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.08492","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"arxiv_version","alias_value":"2408.08492v2","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.08492","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_12","alias_value":"PLGJTTQLOKW6","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_16","alias_value":"PLGJTTQLOKW676XI","created_at":"2026-07-05T11:43:07Z"},{"alias_kind":"pith_short_8","alias_value":"PLGJTTQL","created_at":"2026-07-05T11:43:07Z"}],"graph_snapshots":[{"event_id":"sha256:890c2b71b6f75348adef7c94da94d7e8a45326d3fd574b944cc2ed0733aa5586","target":"graph","created_at":"2026-07-05T11:43:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2408.08492/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a characterization of an X-ray-detected quiescent galaxy at $z=2.09$, named COS-XQG1, using JWST/NIRCam and NIRSpec data. This galaxy is detected in Chandra imaging, suggesting the presence of an AGN with a high black hole accretion rate of $\\dot{M}_{\\rm BH}=0.22\\pm0.03\\, {\\rm M_\\odot yr^{-1}}$. Using multi-wavelength photometry from X-ray to sub-millimeter, including the latest JWST imaging, we confirm that COS-XQG1 is massive ($M_\\star = (1.6\\pm0.2)\\times10^{11}\\, M_\\odot$) and quiescent (${\\rm sSFR}<10^{-10}\\, {\\rm yr^{-1}}$) as reported previously, even considering the contributi","authors_text":"Francesco Valentino, Kazuhiro Shimasaku, Kei Ito, Makoto Ando, Masafusa Onoue, Masayuki Tanaka, Suin Matsui, Takumi Kakimoto, Takumi S. Tanaka","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-16T02:26:17Z","title":"Black hole mass of a quiescent galaxy hosting a Type 1 AGN at z=2.09: Implications for black hole - galaxy co-evolution and AGN quenching at high redshift"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.08492","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":"sha256:0db0ee67cadb0042d4371ce2da62cdd23cc4b0defd70e77aba7ef55626add118","target":"record","created_at":"2026-07-05T11:43:07Z","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":"9d2054be73e0e72a86d98592913b43d495894008451c2be39e1da5fde784773c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-16T02:26:17Z","title_canon_sha256":"eb807965a57b954e0f40a84593b98b70c79cb984e2ca0fd8f0f18b5b4869aa00"},"schema_version":"1.0","source":{"id":"2408.08492","kind":"arxiv","version":2}},"canonical_sha256":"7acc99ce0b72adeffae8fac251c64076697fa3faed2a9c69f88040143c600464","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7acc99ce0b72adeffae8fac251c64076697fa3faed2a9c69f88040143c600464","first_computed_at":"2026-07-05T11:43:07.100586Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:43:07.100586Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+d+ded3Z8lcAiw6ozWS7bacj4S9n1lawxd8wbaja6RFWUAy48gXy+i/DqQcqfB9sYdLs41JWcJmEFAYZXYIRDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:43:07.101225Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.08492","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0db0ee67cadb0042d4371ce2da62cdd23cc4b0defd70e77aba7ef55626add118","sha256:890c2b71b6f75348adef7c94da94d7e8a45326d3fd574b944cc2ed0733aa5586"],"state_sha256":"941a33739a79dfe1ce0c41eef7df0a153f66bdeef81e0c360e8ac25d007ff46a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"toih3oIYLd1hnutkWZgasybsezTDaf7wGekXl6PiOaurlpwKVjcBbytmy34b+e0oFCTHYGHrZNL/Za6AGa/gCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T08:33:51.399269Z","bundle_sha256":"d1059d92df16904e33a2bfa7c693db0f1829f0c5ad9063ba0b52a0e7cc1b2192"}}