{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:CZIL356TTA7YMMYDMTVC7KJ3XJ","short_pith_number":"pith:CZIL356T","canonical_record":{"source":{"id":"2304.06065","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-12T18:00:00Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"3c5cb56977860f36a36b3124586a614d7157d49da83e093c1e00b87861e54622","abstract_canon_sha256":"5fd122d608bbed04d6817b82cd5e3afa08196bf82d7a18ed89d5e85c283e7595"},"schema_version":"1.0"},"canonical_sha256":"1650bdf7d3983f86330364ea2fa93bba58a292b8c6efeed67c0b9d619af2802c","source":{"kind":"arxiv","id":"2304.06065","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.06065","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2304.06065v1","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.06065","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"CZIL356TTA7Y","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"CZIL356TTA7YMMYD","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"CZIL356T","created_at":"2026-07-05T06:27:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:CZIL356TTA7YMMYDMTVC7KJ3XJ","target":"record","payload":{"canonical_record":{"source":{"id":"2304.06065","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-12T18:00:00Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"3c5cb56977860f36a36b3124586a614d7157d49da83e093c1e00b87861e54622","abstract_canon_sha256":"5fd122d608bbed04d6817b82cd5e3afa08196bf82d7a18ed89d5e85c283e7595"},"schema_version":"1.0"},"canonical_sha256":"1650bdf7d3983f86330364ea2fa93bba58a292b8c6efeed67c0b9d619af2802c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:27:21.563522Z","signature_b64":"wb34gvnyqPBr5NrkjRuJ+gTVoodHM40L47sQjyyuo6NunctCJW6PeNTUqSR1JCj2nZ7ElHwTXj/Tf8odW2nJDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1650bdf7d3983f86330364ea2fa93bba58a292b8c6efeed67c0b9d619af2802c","last_reissued_at":"2026-07-05T06:27:21.563015Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:27:21.563015Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.06065","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":"2026-07-05T06:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lnuk6d1GVlfEyEh6OWWM4I3gulN1nkt8PAxT7ZicjwPjE+7+Uxo2QGK/pmdqR4b7IYCqbJuHkd8apDWYP4ziDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:55:16.968347Z"},"content_sha256":"3b952177cae2185eb833e0f63a8911f153d492dd6adfbf66f1e8eb978049f2a6","schema_version":"1.0","event_id":"sha256:3b952177cae2185eb833e0f63a8911f153d492dd6adfbf66f1e8eb978049f2a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:CZIL356TTA7YMMYDMTVC7KJ3XJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Most Obscured AGNs in the XMM-SERVS Fields","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Bin Luo, Chien-Ting J. Chen, Cristian Vignali, David M. Alexander, Fabio Vito, Fan Zou, Franz E. Bauer, Qingling Ni, Ryan C. Hickox, Shifu Zhu, Wei Yan, W. N. Brandt","submitted_at":"2023-04-12T18:00:00Z","abstract_excerpt":"We perform X-ray spectral analyses to derive characteristics (e.g., column density, X-ray luminosity) of $\\approx$10,200 active galactic nuclei (AGNs) in the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS), which was designed to investigate the growth of supermassive black holes across a wide dynamic range of cosmic environments. Using physical torus models (e.g., Borus02) and a Bayesian approach, we uncover 22 representative Compton-thick (CT; $N_{\\rm H} \\;>\\; 1.5\\times10^{24}\\; \\rm cm^{-2}$) AGN candidates with good signal-to-noise ratios as well as a large sample of 136 h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.06065","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/2304.06065/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":"2026-07-05T06:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T05ffCnt5RtlZWIACSpBD7Q6S7aNuSX7yz7H8oIjvZZ2YwCzyJ/wihDzAF7nMUsWNZ/mUTn/8KpxdntWQKI5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:55:16.968761Z"},"content_sha256":"3d791be60037c2fcb0732e9ae4f37ef9baf1ffa261ce4bfd2052246a8c9a11db","schema_version":"1.0","event_id":"sha256:3d791be60037c2fcb0732e9ae4f37ef9baf1ffa261ce4bfd2052246a8c9a11db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/bundle.json","state_url":"https://pith.science/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/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":"2026-07-07T11:55:16Z","links":{"resolver":"https://pith.science/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ","bundle":"https://pith.science/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/bundle.json","state":"https://pith.science/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CZIL356TTA7YMMYDMTVC7KJ3XJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:CZIL356TTA7YMMYDMTVC7KJ3XJ","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":"5fd122d608bbed04d6817b82cd5e3afa08196bf82d7a18ed89d5e85c283e7595","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-12T18:00:00Z","title_canon_sha256":"3c5cb56977860f36a36b3124586a614d7157d49da83e093c1e00b87861e54622"},"schema_version":"1.0","source":{"id":"2304.06065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.06065","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2304.06065v1","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.06065","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"CZIL356TTA7Y","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"CZIL356TTA7YMMYD","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"CZIL356T","created_at":"2026-07-05T06:27:21Z"}],"graph_snapshots":[{"event_id":"sha256:3d791be60037c2fcb0732e9ae4f37ef9baf1ffa261ce4bfd2052246a8c9a11db","target":"graph","created_at":"2026-07-05T06:27:21Z","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/2304.06065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We perform X-ray spectral analyses to derive characteristics (e.g., column density, X-ray luminosity) of $\\approx$10,200 active galactic nuclei (AGNs) in the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS), which was designed to investigate the growth of supermassive black holes across a wide dynamic range of cosmic environments. Using physical torus models (e.g., Borus02) and a Bayesian approach, we uncover 22 representative Compton-thick (CT; $N_{\\rm H} \\;>\\; 1.5\\times10^{24}\\; \\rm cm^{-2}$) AGN candidates with good signal-to-noise ratios as well as a large sample of 136 h","authors_text":"Bin Luo, Chien-Ting J. Chen, Cristian Vignali, David M. Alexander, Fabio Vito, Fan Zou, Franz E. Bauer, Qingling Ni, Ryan C. Hickox, Shifu Zhu, Wei Yan, W. N. Brandt","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-12T18:00:00Z","title":"The Most Obscured AGNs in the XMM-SERVS Fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.06065","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":"sha256:3b952177cae2185eb833e0f63a8911f153d492dd6adfbf66f1e8eb978049f2a6","target":"record","created_at":"2026-07-05T06:27:21Z","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":"5fd122d608bbed04d6817b82cd5e3afa08196bf82d7a18ed89d5e85c283e7595","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-04-12T18:00:00Z","title_canon_sha256":"3c5cb56977860f36a36b3124586a614d7157d49da83e093c1e00b87861e54622"},"schema_version":"1.0","source":{"id":"2304.06065","kind":"arxiv","version":1}},"canonical_sha256":"1650bdf7d3983f86330364ea2fa93bba58a292b8c6efeed67c0b9d619af2802c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1650bdf7d3983f86330364ea2fa93bba58a292b8c6efeed67c0b9d619af2802c","first_computed_at":"2026-07-05T06:27:21.563015Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:27:21.563015Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wb34gvnyqPBr5NrkjRuJ+gTVoodHM40L47sQjyyuo6NunctCJW6PeNTUqSR1JCj2nZ7ElHwTXj/Tf8odW2nJDg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:27:21.563522Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.06065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3b952177cae2185eb833e0f63a8911f153d492dd6adfbf66f1e8eb978049f2a6","sha256:3d791be60037c2fcb0732e9ae4f37ef9baf1ffa261ce4bfd2052246a8c9a11db"],"state_sha256":"fcb62aa44fffc5c513965432322220ea7f57acb7ab58b2c9b507404a4d99a6c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dqWRnvr36n0egmI7OC8+kh5NHu/HK097Q+vGV8gKg+WG4YdXgp4ap//X+EJcySe/fm2+AWTwidSDHwT3LpGbBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:55:16.970818Z","bundle_sha256":"2837169a30619c69eaeeefd916731a39a4df96275b28a66d6bea5537e15743e7"}}