{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:OPET3UE3CFIAXCZZGFJJLD72ZU","short_pith_number":"pith:OPET3UE3","schema_version":"1.0","canonical_sha256":"73c93dd09b11500b8b393152958ffacd0bc369c17ab614deec64b776e22123d2","source":{"kind":"arxiv","id":"1309.1202","version":1},"attestation_state":"computed","paper":{"title":"A Joint Model Of X-ray And Infrared Backgrounds. II. Compton-Thick AGN Abundance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"George Helou (Caltech), Lee Armus (Caltech), NJU), Yong Shi (Caltech","submitted_at":"2013-09-04T22:39:14Z","abstract_excerpt":"We estimate the abundance of Compton-thick (CT) active galactic nuclei (AGN) based on our joint model of X-ray and infrared backgrounds. At L_{rest 2-10 keV} > 10^42 erg/s, the CT AGN density predicted by our model is a few 10^-4 Mpc^-3 from z=0 up to z=3. CT AGN with higher luminosity cuts (> 10^43, 10^44 & 10^45 erg/s) peak at higher z and show a rapid increase in the number density from z=0 to z~2-3. The CT to all AGN ratio appears to be low (2-5%) at f_{2-10keV} > 10^-15 erg/s/cm^2 but rises rapidly toward fainter flux levels. The CT AGN account for ~ 38% of the total accreted SMBH mass an"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1309.1202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-09-04T22:39:14Z","cross_cats_sorted":[],"title_canon_sha256":"4f4a50760f72dbc7adc221ea98d50bb9bb5842ef8f66edb766afcf1f79891deb","abstract_canon_sha256":"500f551be5c0fbfb0194f81ddbae4cce71b04367e68cc681e30490711e3b9976"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:49.661412Z","signature_b64":"+f/6pQv9jxfDEY5btBtnvmaCG0ggse5dzmfJ6TWalIsMVE8SftrsCU7OqaO8bivygvAkTnWYcGDHRpML+WqBBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"73c93dd09b11500b8b393152958ffacd0bc369c17ab614deec64b776e22123d2","last_reissued_at":"2026-05-18T01:47:49.660963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:49.660963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Joint Model Of X-ray And Infrared Backgrounds. II. Compton-Thick AGN Abundance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"George Helou (Caltech), Lee Armus (Caltech), NJU), Yong Shi (Caltech","submitted_at":"2013-09-04T22:39:14Z","abstract_excerpt":"We estimate the abundance of Compton-thick (CT) active galactic nuclei (AGN) based on our joint model of X-ray and infrared backgrounds. At L_{rest 2-10 keV} > 10^42 erg/s, the CT AGN density predicted by our model is a few 10^-4 Mpc^-3 from z=0 up to z=3. CT AGN with higher luminosity cuts (> 10^43, 10^44 & 10^45 erg/s) peak at higher z and show a rapid increase in the number density from z=0 to z~2-3. The CT to all AGN ratio appears to be low (2-5%) at f_{2-10keV} > 10^-15 erg/s/cm^2 but rises rapidly toward fainter flux levels. The CT AGN account for ~ 38% of the total accreted SMBH mass an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1202","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1309.1202","created_at":"2026-05-18T01:47:49.661026+00:00"},{"alias_kind":"arxiv_version","alias_value":"1309.1202v1","created_at":"2026-05-18T01:47:49.661026+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1202","created_at":"2026-05-18T01:47:49.661026+00:00"},{"alias_kind":"pith_short_12","alias_value":"OPET3UE3CFIA","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_16","alias_value":"OPET3UE3CFIAXCZZ","created_at":"2026-05-18T12:27:54.935989+00:00"},{"alias_kind":"pith_short_8","alias_value":"OPET3UE3","created_at":"2026-05-18T12:27:54.935989+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU","json":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU.json","graph_json":"https://pith.science/api/pith-number/OPET3UE3CFIAXCZZGFJJLD72ZU/graph.json","events_json":"https://pith.science/api/pith-number/OPET3UE3CFIAXCZZGFJJLD72ZU/events.json","paper":"https://pith.science/paper/OPET3UE3"},"agent_actions":{"view_html":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU","download_json":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU.json","view_paper":"https://pith.science/paper/OPET3UE3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1309.1202&json=true","fetch_graph":"https://pith.science/api/pith-number/OPET3UE3CFIAXCZZGFJJLD72ZU/graph.json","fetch_events":"https://pith.science/api/pith-number/OPET3UE3CFIAXCZZGFJJLD72ZU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU/action/storage_attestation","attest_author":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU/action/author_attestation","sign_citation":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU/action/citation_signature","submit_replication":"https://pith.science/pith/OPET3UE3CFIAXCZZGFJJLD72ZU/action/replication_record"}},"created_at":"2026-05-18T01:47:49.661026+00:00","updated_at":"2026-05-18T01:47:49.661026+00:00"}