{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:S27C6EDDOSXLDRAPUVSPUD6SY5","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":"95c7b520d42e6bf3115b683443c5c59c22387e11abb550cb8dca75192dd6170c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-31T14:12:00Z","title_canon_sha256":"30953a51b73b5b5f87134d4c2648393506bd5c9d68e71c840a39c8ab40dc95dc"},"schema_version":"1.0","source":{"id":"1512.09291","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.09291","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"1512.09291v3","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.09291","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"S27C6EDDOSXL","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"S27C6EDDOSXLDRAP","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"S27C6EDD","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:65cd2ebc56c598b25034be2402a38fcea2fc788ac1464ad72ec1a62c093fffa8","target":"graph","created_at":"2026-05-18T00:50:22Z","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":"Low-redshift active galactic nuclei (AGNs) with extremely blue optical spectral indices are shown to have a mean, velocity-averaged, broad-line H$\\alpha$/H$\\beta$ ratio of $\\thickapprox 2.72 \\pm 0.04$, consistent with a Baker-Menzel Case B value. Comparison of a wide range of properties of the very bluest AGNs with those of a luminosity-matched subset of the Dong et al. blue AGN sample indicates that the only difference is the internal reddening. Ultraviolet fluxes are brighter for the bluest AGNs by an amount consistent with the flat AGN reddening curve of Gaskell et al.(2004). The lack of a ","authors_text":"C. Martin Gaskell","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-31T14:12:00Z","title":"The case for cases B and C: intrinsic hydrogen line ratios of the broad-line region of active galactic nuclei, reddenings, and accretion disc sizes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.09291","kind":"arxiv","version":3},"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:a56ad0813af88d84b99c51bda77931bdac5298a378314516f02bc20e2f1b05e2","target":"record","created_at":"2026-05-18T00:50:22Z","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":"95c7b520d42e6bf3115b683443c5c59c22387e11abb550cb8dca75192dd6170c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-12-31T14:12:00Z","title_canon_sha256":"30953a51b73b5b5f87134d4c2648393506bd5c9d68e71c840a39c8ab40dc95dc"},"schema_version":"1.0","source":{"id":"1512.09291","kind":"arxiv","version":3}},"canonical_sha256":"96be2f106374aeb1c40fa564fa0fd2c75419e96bd6b9693699347e3dadefe3ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96be2f106374aeb1c40fa564fa0fd2c75419e96bd6b9693699347e3dadefe3ce","first_computed_at":"2026-05-18T00:50:22.777506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:22.777506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iHDi6cXI8bu0Slc/LTbOw2MAm57YtfMEVGQsv7o42szO1QPHks81dzKMX9repEMVLN/soJkVrwfc2q2THy4VDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:22.778244Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.09291","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a56ad0813af88d84b99c51bda77931bdac5298a378314516f02bc20e2f1b05e2","sha256:65cd2ebc56c598b25034be2402a38fcea2fc788ac1464ad72ec1a62c093fffa8"],"state_sha256":"9866b8dbaa4ef54dbf9d902405a00f04a4a98dbb80393880940131de9068e095"}