{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:LKBW4RTB6JMFQAUKHUZMGOI3CP","short_pith_number":"pith:LKBW4RTB","schema_version":"1.0","canonical_sha256":"5a836e4661f25858028a3d32c3391b13ea125a8c766053e9cda6f57ef3056c96","source":{"kind":"arxiv","id":"astro-ph/0605438","version":1},"attestation_state":"computed","paper":{"title":"Penetrating the Deep Cover of Compton Thick Active Galactic Nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"J. H. Krolik, K. A. Weaver, N. A. Levenson, P. T. Zycki, T. M. Heckman","submitted_at":"2006-05-17T22:03:39Z","abstract_excerpt":"We analyze observations obtained with the Chandra X-ray Observatory of bright Compton thick active galactic nuclei (AGNs), those with column densities in excess of 1.5 x 10^{24} cm^{-2} along the lines of sight. We therefore view the powerful central engines only indirectly, even at X-ray energies. Using high spatial resolution and considering only galaxies that do not contain circumnuclear starbursts, we reveal the variety of emission AGNs alone may produce. Approximately 1% of the continuum's intrinsic flux is detected in reflection in each case. The only hard X-ray feature is the prominent "},"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":"astro-ph/0605438","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-05-17T22:03:39Z","cross_cats_sorted":[],"title_canon_sha256":"895ec3873a2bd1704bd96baee3338a016f87e59c1eaa6f3b0431e689b508b281","abstract_canon_sha256":"4a294cdf616639f242a00fb4e343909960daeaa5f89cb42ab24f6f02b02d8beb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:17:14.011181Z","signature_b64":"mhrhwt5aK+3k9D4+r7LSIYmLCforFqvaCA8hvDSvbRfrAEeial4xptd6nKsHs9EjqEQrNv4I/+oFdGvCHP5tBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a836e4661f25858028a3d32c3391b13ea125a8c766053e9cda6f57ef3056c96","last_reissued_at":"2026-05-18T04:17:14.010536Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:17:14.010536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Penetrating the Deep Cover of Compton Thick Active Galactic Nuclei","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"J. H. Krolik, K. A. Weaver, N. A. Levenson, P. T. Zycki, T. M. Heckman","submitted_at":"2006-05-17T22:03:39Z","abstract_excerpt":"We analyze observations obtained with the Chandra X-ray Observatory of bright Compton thick active galactic nuclei (AGNs), those with column densities in excess of 1.5 x 10^{24} cm^{-2} along the lines of sight. We therefore view the powerful central engines only indirectly, even at X-ray energies. Using high spatial resolution and considering only galaxies that do not contain circumnuclear starbursts, we reveal the variety of emission AGNs alone may produce. Approximately 1% of the continuum's intrinsic flux is detected in reflection in each case. The only hard X-ray feature is the prominent "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0605438","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":"astro-ph/0605438","created_at":"2026-05-18T04:17:14.010629+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0605438v1","created_at":"2026-05-18T04:17:14.010629+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0605438","created_at":"2026-05-18T04:17:14.010629+00:00"},{"alias_kind":"pith_short_12","alias_value":"LKBW4RTB6JMF","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_16","alias_value":"LKBW4RTB6JMFQAUK","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_8","alias_value":"LKBW4RTB","created_at":"2026-05-18T12:25:54.717736+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/LKBW4RTB6JMFQAUKHUZMGOI3CP","json":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP.json","graph_json":"https://pith.science/api/pith-number/LKBW4RTB6JMFQAUKHUZMGOI3CP/graph.json","events_json":"https://pith.science/api/pith-number/LKBW4RTB6JMFQAUKHUZMGOI3CP/events.json","paper":"https://pith.science/paper/LKBW4RTB"},"agent_actions":{"view_html":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP","download_json":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP.json","view_paper":"https://pith.science/paper/LKBW4RTB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0605438&json=true","fetch_graph":"https://pith.science/api/pith-number/LKBW4RTB6JMFQAUKHUZMGOI3CP/graph.json","fetch_events":"https://pith.science/api/pith-number/LKBW4RTB6JMFQAUKHUZMGOI3CP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP/action/storage_attestation","attest_author":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP/action/author_attestation","sign_citation":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP/action/citation_signature","submit_replication":"https://pith.science/pith/LKBW4RTB6JMFQAUKHUZMGOI3CP/action/replication_record"}},"created_at":"2026-05-18T04:17:14.010629+00:00","updated_at":"2026-05-18T04:17:14.010629+00:00"}