{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:OERK6AEP5RB4DZIHGOR62ZXC4U","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":"3fcb7028f5bdec7943d33c531d948e85bf29edd14e3e1a68b42ea3415a8a1cda","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-03T18:51:38Z","title_canon_sha256":"ba5896998b3c5bd698f85283f43e77840d6ebd4f8ca1c0ca7dfbf38416eb22b9"},"schema_version":"1.0","source":{"id":"astro-ph/9806055","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9806055","created_at":"2026-07-04T14:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9806055v2","created_at":"2026-07-04T14:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9806055","created_at":"2026-07-04T14:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"OERK6AEP5RB4","created_at":"2026-07-04T14:15:51Z"},{"alias_kind":"pith_short_16","alias_value":"OERK6AEP5RB4DZIH","created_at":"2026-07-04T14:15:51Z"},{"alias_kind":"pith_short_8","alias_value":"OERK6AEP","created_at":"2026-07-04T14:15:51Z"}],"graph_snapshots":[{"event_id":"sha256:5cfc0be8804a92e8543282784f32b2e26733e63672b3a8eecf289f854e7a0ac2","target":"graph","created_at":"2026-07-04T14:15:51Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/9806055/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present observations in the 0.1-100 keV spectral band of 8 Seyfert 2 galaxies, obtained by means of BeppoSAX. These sources were selected according to their [OIII] optical emission line flux, to avoid biases against obscuration on the pc scale. All sources were detected. All of them are weak X-ray emitters, and most of them are characterized by prominent iron lines at 6.4-7 keV (EW > 500 eV) and by a flat continuum, indicative of heavy obscuration along our line of sight (N_H > 10^25 cm^-2 in most cases). These results 1) provide further evidence in favor of the unified scenario, and 2) ind","authors_text":"G. Matt, G. Risaliti, G. Zamorani, L. Bassani, M. Dadina, M. Salvati, R. Della Ceca, R. Maiolino","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-06-03T18:51:38Z","title":"Heavy obscuration in X-ray weak AGNs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9806055","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:c52945883569fca1310a51222e25fbb69aabcd40c946bf10e288c386b5057984","target":"record","created_at":"2026-07-04T14:15:51Z","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":"3fcb7028f5bdec7943d33c531d948e85bf29edd14e3e1a68b42ea3415a8a1cda","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-06-03T18:51:38Z","title_canon_sha256":"ba5896998b3c5bd698f85283f43e77840d6ebd4f8ca1c0ca7dfbf38416eb22b9"},"schema_version":"1.0","source":{"id":"astro-ph/9806055","kind":"arxiv","version":2}},"canonical_sha256":"7122af008fec43c1e50733a3ed66e2e5065c9c2de176b2a3aa854c8201b15f7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7122af008fec43c1e50733a3ed66e2e5065c9c2de176b2a3aa854c8201b15f7c","first_computed_at":"2026-07-04T14:15:51.216592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:15:51.216592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rmk5xs50C774TTi3oTtO9vUFpOYiJugb0pVJbUfTzeb8NbHBQeFVa8YPrxqLGmPCwPkGaqIhwJytwPpAh5doAw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:15:51.217006Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9806055","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c52945883569fca1310a51222e25fbb69aabcd40c946bf10e288c386b5057984","sha256:5cfc0be8804a92e8543282784f32b2e26733e63672b3a8eecf289f854e7a0ac2"],"state_sha256":"d267690def3e27bc5c40d4a64c98013fa357076b8f9c2a3a302844b3c9771e7a"}