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We use the integrated comoving energy density emitted by AGNs and compare it to the mass density of local SMBHs. When considering only optically-selected unobscured AGNs, we derive log_10[epsilon]=-1.77+0.16-0.11 or epsilon=1.7+0.8-0.4%. Using the AGNs selected using hard X-rays, which include unabsorbed and Compton-thin absorbed AGNs, we find log_10[epsilon]=-1.20+0"},"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":"0810.3920","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-21T20:05:27Z","cross_cats_sorted":[],"title_canon_sha256":"e0ec1c525b65d8a77cc7f6e46c4c705b5cb5765b5b0fdf5bfc8e930594498c46","abstract_canon_sha256":"d4028f70aaf3612103280c034589cca43248646cc23d1358933be6dff7e51ded"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:25.805521Z","signature_b64":"4EWlnEYfu9ryKJcB4Xlre+9xNIllNdkvv5Uc/u6vXj3Wf1ZWisa+5AqiorVuaeT0Kc31LkvCExDIjY/KTrHYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"916585ee10a6f36d2f330d3aa28e753e17771f8fb3f4ef5088a344e81934c773","last_reissued_at":"2026-05-18T04:29:25.805108Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:25.805108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The cosmological consequence of an obscured AGN population on the radiation efficiency","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alejo Martinez-Sansigre, Andrew M. 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