{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2S43E7ZFYSXCO3HNK5UBH4IJRJ","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":"b2ead285be606caf0591d9b039a0c26e970e95d5724bc782cea09f6a85e34385","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-31T13:12:07Z","title_canon_sha256":"8e54cc4592a4cabdcef1834e7b40e79072528543d0766305bde6659a8161bcb1"},"schema_version":"1.0","source":{"id":"1804.00171","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.00171","created_at":"2026-05-18T00:09:25Z"},{"alias_kind":"arxiv_version","alias_value":"1804.00171v2","created_at":"2026-05-18T00:09:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00171","created_at":"2026-05-18T00:09:25Z"},{"alias_kind":"pith_short_12","alias_value":"2S43E7ZFYSXC","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2S43E7ZFYSXCO3HN","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2S43E7ZF","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:d7b5dded879c3fd7c5f6aabcc6815201019687008a8a14b601ac93a28ae85fcb","target":"graph","created_at":"2026-05-18T00:09:25Z","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":"We develop a new spectral model for the broadband spectral energy distribution (SED) of Active Galactic Nuclei (AGN). This includes an outer standard disc, an inner warm Comptonising region to produce the soft X-ray excess and a hot corona. We tie these together energetically by assuming Novikov-Thorne emissivity, and use this to define a size scale for the hard X-ray corona as equal to the radius where the remaining accretion energy down to the black hole can power the observed X-ray emission. We test this on three AGN with well defined SEDs as well as on larger samples to show that the avera","authors_text":"Aya Kubota, Chris Done","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-31T13:12:07Z","title":"A physical model of the broadband continuum of AGN and its implications for the UV/X relation and optical variability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00171","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:f05dfbcffeee39129780a4d5210b21fd9be60dbde827cc4902197f497f8e3391","target":"record","created_at":"2026-05-18T00:09:25Z","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":"b2ead285be606caf0591d9b039a0c26e970e95d5724bc782cea09f6a85e34385","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-31T13:12:07Z","title_canon_sha256":"8e54cc4592a4cabdcef1834e7b40e79072528543d0766305bde6659a8161bcb1"},"schema_version":"1.0","source":{"id":"1804.00171","kind":"arxiv","version":2}},"canonical_sha256":"d4b9b27f25c4ae276ced576813f1098a5e99bacdf7b9138628232686b332a8d3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4b9b27f25c4ae276ced576813f1098a5e99bacdf7b9138628232686b332a8d3","first_computed_at":"2026-05-18T00:09:25.404612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:25.404612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ADctj5WrzN6Z3av4tJhRk7sbiT6mSZeh99jm4diQzTymrfzTWBBpmVREJ5iuHv60DsRrTJWJEi5xtd7uEiFYBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:25.405266Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.00171","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f05dfbcffeee39129780a4d5210b21fd9be60dbde827cc4902197f497f8e3391","sha256:d7b5dded879c3fd7c5f6aabcc6815201019687008a8a14b601ac93a28ae85fcb"],"state_sha256":"38cae0a431a3746ef640b04948f675d85084c1f0dd422800a59a1dcb4a4a023f"}