{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:U5N4J7WHZTYBY3Y5XPXRN4UWUE","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":"26d948c022fcb2b53674178be4cca71c52f7d900d829cb93197e9431040df4c1","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-02T18:11:09Z","title_canon_sha256":"db4d34b65c52e1d1d2abc6db479e0b3c8b915fb5dfd4f6f337727988d54d3f4e"},"schema_version":"1.0","source":{"id":"1706.00797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.00797","created_at":"2026-05-18T00:43:07Z"},{"alias_kind":"arxiv_version","alias_value":"1706.00797v1","created_at":"2026-05-18T00:43:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.00797","created_at":"2026-05-18T00:43:07Z"},{"alias_kind":"pith_short_12","alias_value":"U5N4J7WHZTYB","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"U5N4J7WHZTYBY3Y5","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"U5N4J7WH","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:463fa1aea7b6f7662bc7ee5747b86ddf3886b8cd6fb80db30afaf56ec02a0db5","target":"graph","created_at":"2026-05-18T00:43:07Z","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":"Narrow line Seyfert 1 (NLSy1) galaxies constitute a class of active galactic nuclei characterized by the full width at half maximum (FWHM) of the H$\\beta$ broad emission line < 2000 km/s and the flux ratio of [O III] to H$\\beta$ < 3. Their properties are not well understood since only a few NLSy1 galaxies were known earlier. We have studied various properties of NLSy1 galaxies using an enlarged sample and compared them with the conventional broad-line Seyfert 1 (BLSy1) galaxies. Both the sample of sources have z $\\le$ 0.8 and their optical spectra from SDSS-DR12 that are used to derive various","authors_text":"C. S. Stalin, Hum Chand, Suvendu Rakshit, Xue-Guang Zhang","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-02T18:11:09Z","title":"Properties of Narrow line Seyfert 1 galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.00797","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:c8f044964a1c97eabdbef87418f761c934ec9cf255c7c7164c17eefb4a6dce50","target":"record","created_at":"2026-05-18T00:43:07Z","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":"26d948c022fcb2b53674178be4cca71c52f7d900d829cb93197e9431040df4c1","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-06-02T18:11:09Z","title_canon_sha256":"db4d34b65c52e1d1d2abc6db479e0b3c8b915fb5dfd4f6f337727988d54d3f4e"},"schema_version":"1.0","source":{"id":"1706.00797","kind":"arxiv","version":1}},"canonical_sha256":"a75bc4fec7ccf01c6f1dbbef16f296a134f5a07a0de790f848b199e127c9315a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a75bc4fec7ccf01c6f1dbbef16f296a134f5a07a0de790f848b199e127c9315a","first_computed_at":"2026-05-18T00:43:07.958794Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:07.958794Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gKCUal+6CYv9Y+xIucNAIeAsMVsLOkm7fCcRgSOH3SQmxQs22Gd1yl1gX1HKZ/4EcuSi48geVvsNLQbE5HC/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:07.959621Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.00797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8f044964a1c97eabdbef87418f761c934ec9cf255c7c7164c17eefb4a6dce50","sha256:463fa1aea7b6f7662bc7ee5747b86ddf3886b8cd6fb80db30afaf56ec02a0db5"],"state_sha256":"358000232a038e96882e5876066d280792c94f9bcd39d850711eaee1e4eca683"}