{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:LU2XOHXUW3EHWFOOW4CUQFULGG","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":"27d029e83d6b66b829b14748746aaa5eddbfea201f3a078157c834a2e33c7ab6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-15T10:28:28Z","title_canon_sha256":"0218ac66b8adc0eb18c1595079c394898abdc00decfdc831e95923016b0283ed"},"schema_version":"1.0","source":{"id":"1501.03620","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.03620","created_at":"2026-05-18T02:27:31Z"},{"alias_kind":"arxiv_version","alias_value":"1501.03620v2","created_at":"2026-05-18T02:27:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.03620","created_at":"2026-05-18T02:27:31Z"},{"alias_kind":"pith_short_12","alias_value":"LU2XOHXUW3EH","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"LU2XOHXUW3EHWFOO","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"LU2XOHXU","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:e44615ca4b6e32fce0ab6f3ebea5adbd58f3513f1dc5661f7da21edfc74bfb3e","target":"graph","created_at":"2026-05-18T02:27:31Z","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":"A recent revision of black hole scaling relations (Kormendy & Ho 2013), indicates that the local mass density in black holes should be increased by up to a factor of five with respect to previously determined values. The local black hole mass density is connected to the mean radiative efficiency of accretion through the time integral of the AGN volume density and a significant increase of the local black holes mass density would have interesting consequences on AGN accretion properties and demography. One possibility to explain a large black hole mass density is that most of the Black Hole gro","authors_text":"A. Comastri, A. Marconi, G. Risaliti, M. Salvati, R. Gilli","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-15T10:28:28Z","title":"Mass without radiation: heavily obscured AGN, the X-ray Background and the Black Hole Mass Density"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.03620","kind":"arxiv","version":2},"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:ffa8d774da22b23a833757780bc70a0304b978330f0f911314a941563cf7dc22","target":"record","created_at":"2026-05-18T02:27:31Z","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":"27d029e83d6b66b829b14748746aaa5eddbfea201f3a078157c834a2e33c7ab6","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-15T10:28:28Z","title_canon_sha256":"0218ac66b8adc0eb18c1595079c394898abdc00decfdc831e95923016b0283ed"},"schema_version":"1.0","source":{"id":"1501.03620","kind":"arxiv","version":2}},"canonical_sha256":"5d35771ef4b6c87b15ceb70548168b318dee616031a6163d94d44b4639802e7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d35771ef4b6c87b15ceb70548168b318dee616031a6163d94d44b4639802e7d","first_computed_at":"2026-05-18T02:27:31.560182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:27:31.560182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MLROVzDK9WftflByPcuMpco3hSlIs0qNuWSMaTWARg6bDjS1q7b7yqx72QG7akYE8wAgktu4CDmHPVB3sPQYAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:27:31.560902Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.03620","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffa8d774da22b23a833757780bc70a0304b978330f0f911314a941563cf7dc22","sha256:e44615ca4b6e32fce0ab6f3ebea5adbd58f3513f1dc5661f7da21edfc74bfb3e"],"state_sha256":"a10356694028fe936d108b38d9f8bd91b294dc3288118eb1b29b1c3c0aa62cdb"}