{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3PLG3RTQVAIBXL3AFPL5YRBXAX","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":"5351fc3dcb79f7e07f6b03333aa4335e4642bc6fc995462c7f2dda54ea55618e","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-24T20:00:01Z","title_canon_sha256":"f1b9c120999b87d8eb41e70527e061c048578d64e2beacaca3e285c3d7a327b2"},"schema_version":"1.0","source":{"id":"1009.4929","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.4929","created_at":"2026-05-18T02:05:17Z"},{"alias_kind":"arxiv_version","alias_value":"1009.4929v1","created_at":"2026-05-18T02:05:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.4929","created_at":"2026-05-18T02:05:17Z"},{"alias_kind":"pith_short_12","alias_value":"3PLG3RTQVAIB","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3PLG3RTQVAIBXL3A","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3PLG3RTQ","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:425d1d99073454363c8f9df987b7b813c1276dc209f56ca30d96f882438fc1d1","target":"graph","created_at":"2026-05-18T02:05:17Z","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"},"paper":{"abstract_excerpt":"Using a suite of X-ray, mid-IR and optical active galactic nuclei (AGN) luminosity indicators, we search for Compton-thick (CT) AGNs with intrinsic L_X>10^42erg/s at z~0.03-0.2, a region of parameter space which is currently poorly constrained by deep narrow-field and high-energy (E>10keV) all-sky X-ray surveys. We have used the widest XMM-Newton survey (the serendipitous source catalogue) to select a representative sub-sample (14; ~10%) of the 147 X-ray undetected candidate CT AGNs in the Sloan Digital Sky Survey (SDSS) with f_X/f_[OIII]<1; the 147 sources account for ~50% of the overall Type","authors_text":"Andy Goulding (Durham, David Alexander, James Mullaney, Jonathan Gelbord, Martin Ward, Mike Watson, Ryan Hickox, UK)","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-24T20:00:01Z","title":"Searching for Compton-thick active galactic nuclei at z~0.1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.4929","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:d6f50c4ae6afc41cfe88cc6df20fa8bea3333416df6001ec8c0d8b95c0815cf4","target":"record","created_at":"2026-05-18T02:05:17Z","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":"5351fc3dcb79f7e07f6b03333aa4335e4642bc6fc995462c7f2dda54ea55618e","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-24T20:00:01Z","title_canon_sha256":"f1b9c120999b87d8eb41e70527e061c048578d64e2beacaca3e285c3d7a327b2"},"schema_version":"1.0","source":{"id":"1009.4929","kind":"arxiv","version":1}},"canonical_sha256":"dbd66dc670a8101baf602bd7dc443705cfbb70e6566ad661ee4d676bd866d689","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dbd66dc670a8101baf602bd7dc443705cfbb70e6566ad661ee4d676bd866d689","first_computed_at":"2026-05-18T02:05:17.499014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:17.499014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+uuiKxiajS1RAyPpC5LcTRb3+AFhZSjVrmeN+ttr7KHfiF5vXqH6HZdtv6TEaqErmefliwZKEP/fOui127KiCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:17.499763Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.4929","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6f50c4ae6afc41cfe88cc6df20fa8bea3333416df6001ec8c0d8b95c0815cf4","sha256:425d1d99073454363c8f9df987b7b813c1276dc209f56ca30d96f882438fc1d1"],"state_sha256":"22a8f6e139ef62fd4fdea8cd706e92ed0e0a74330e7175a95d7f847cfd395c6d"}