{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:622LO7GKMY4WFTXU2FNVOFFRAC","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":"b0b21dcefbd3e2383de376a67a15135d38454e727181cbfaf1bd5e0051e7c926","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-08-30T10:00:51Z","title_canon_sha256":"28215c4a554d85a470352aea15b74f42f34e1ebe9cfc38096bc46120a377070e"},"schema_version":"1.0","source":{"id":"1108.5898","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.5898","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"arxiv_version","alias_value":"1108.5898v1","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.5898","created_at":"2026-05-18T02:00:44Z"},{"alias_kind":"pith_short_12","alias_value":"622LO7GKMY4W","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"622LO7GKMY4WFTXU","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"622LO7GK","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:9fa90b4fed71582b13057c804d5dae3b371b97242b218ad2aaa47b7d9de3e4e0","target":"graph","created_at":"2026-05-18T02:00:44Z","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 report on our analysis of XMM-Newton observations of the Seyfert 2 galaxy ESO 138-G1 (z = 0.0091). These data reveal a complex spectrum in both its soft and hard portions. The 0.5-2 keV band is characterized by a strong 'soft-excess' component with several emission lines, as commonly observed in other narrow-line AGN. Above 3 keV, a power-law fit yields a very flat slope (Gamma ~0.35), along with the presence of a prominent line-like emission feature around ~6.4 keV. This indicates heavy obscuration along the line of sight to the nucleus. We find an excellent fit to the 3-10 keV continuum w","authors_text":"C. Vignali, E. Jimenez-Bailon, E. Piconcelli, F. Fiore, S. Bianchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-08-30T10:00:51Z","title":"X-ray spectroscopy of the Compton-thick Seyfert 2 ESO 138-G1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.5898","kind":"arxiv","version":1},"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":"sha256:964b726edeca03f408df4ccf7189faa96df553b5d814bcb6e1d482709a8f5c6a","target":"record","created_at":"2026-05-18T02:00:44Z","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":"b0b21dcefbd3e2383de376a67a15135d38454e727181cbfaf1bd5e0051e7c926","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-08-30T10:00:51Z","title_canon_sha256":"28215c4a554d85a470352aea15b74f42f34e1ebe9cfc38096bc46120a377070e"},"schema_version":"1.0","source":{"id":"1108.5898","kind":"arxiv","version":1}},"canonical_sha256":"f6b4b77cca663962cef4d15b5714b100b25053922643c5ad32ebccd8a02aafd4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6b4b77cca663962cef4d15b5714b100b25053922643c5ad32ebccd8a02aafd4","first_computed_at":"2026-05-18T02:00:44.810211Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:44.810211Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BqQQFhSugiLeHOyqPjAeIYIm/SfYddxSGb/glvhiUiCLbueVh8kyjRal6Tr9CLteab+Y9zJVh/EUyJwLE16rBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:44.810834Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.5898","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:964b726edeca03f408df4ccf7189faa96df553b5d814bcb6e1d482709a8f5c6a","sha256:9fa90b4fed71582b13057c804d5dae3b371b97242b218ad2aaa47b7d9de3e4e0"],"state_sha256":"73020d59c2f7ce6aca74863a1793345233690bc3a0abc80100659f288887b225"}