{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:J7TWYJFD2CLIFKNUQKZNLCZQ2I","short_pith_number":"pith:J7TWYJFD","canonical_record":{"source":{"id":"0706.2574","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T10:48:21Z","cross_cats_sorted":[],"title_canon_sha256":"15906e19df7a1a5fe89ed704c99943d8697b8c214bfb13e71a36ffa60e1e96f2","abstract_canon_sha256":"00f90ca7860f152d6f58931d49eea156d6aa476f301c156519fe636a09cae468"},"schema_version":"1.0"},"canonical_sha256":"4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e","source":{"kind":"arxiv","id":"0706.2574","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.2574","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"arxiv_version","alias_value":"0706.2574v1","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.2574","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_12","alias_value":"J7TWYJFD2CLI","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_16","alias_value":"J7TWYJFD2CLIFKNU","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_8","alias_value":"J7TWYJFD","created_at":"2026-07-04T17:04:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:J7TWYJFD2CLIFKNUQKZNLCZQ2I","target":"record","payload":{"canonical_record":{"source":{"id":"0706.2574","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T10:48:21Z","cross_cats_sorted":[],"title_canon_sha256":"15906e19df7a1a5fe89ed704c99943d8697b8c214bfb13e71a36ffa60e1e96f2","abstract_canon_sha256":"00f90ca7860f152d6f58931d49eea156d6aa476f301c156519fe636a09cae468"},"schema_version":"1.0"},"canonical_sha256":"4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:04:15.137678Z","signature_b64":"DOOMVxvm9QfURwbBOdj0g1mzTtm9G3qGPd3IHbxdHA8D1ItgGujaapp3ryUHaARa8tRPzefmlfAxHfJjx+kaBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e","last_reissued_at":"2026-07-04T17:04:15.137336Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:04:15.137336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.2574","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:04:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4013aJMPSIHP2cFq18Lt6bVFpOXm8d3L7xbPZpI+QxUj9ZAZlfKORrfHetY4ZyDR6/ok8RVvw+kGQojrYkP5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T21:56:38.555090Z"},"content_sha256":"87b045982b9be8b6c2a490fec5068c8a85a960457c1a7a283d316da9c524f20c","schema_version":"1.0","event_id":"sha256:87b045982b9be8b6c2a490fec5068c8a85a960457c1a7a283d316da9c524f20c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:J7TWYJFD2CLIFKNUQKZNLCZQ2I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The narrow-line region of narrow-line and broad-line type 1 AGN I. A zone of avoidance in density","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2, (2) MPE, (3) Univ. of Florida, 4), (4) USTC), Dawei Xu (1), Hongyan Zhou (3, Jianyan Wei (1) ((1) NAOC, Stefanie Komossa (2), Tinggui Wang (4)","submitted_at":"2007-06-18T10:48:21Z","abstract_excerpt":"The properties of narrow-line Seyfert 1 (NLS1) galaxies, the links and correlations between them, and the physics behind them, are still not well understood. Apart from accretion rates and black hole masses, density and outflows were speculated to be among the main drivers of the NLS1 phenomenon. Here, we utilize the diagnostic power of the [SII]6716,6731 intensity ratio to measure the density of the NLR systematically and homogeneously for a large sample of NLS1 galaxies, and we perform a comparison with a sample of broad-line type 1 AGN. We report the discovery of a zone of avoidance in dens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.2574","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0706.2574/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T17:04:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P3pD0VqA1y05d1Jz/30AiANnTF+GwP5qb5uFc6qB7fPbif/eglYjD3RYM1OOydJtfyA8TyGctR2q/zgrAb4VDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T21:56:38.556092Z"},"content_sha256":"86be1bbf40111fd386d313f9406bf0140c2e222441afc47d977d94963dfd5a96","schema_version":"1.0","event_id":"sha256:86be1bbf40111fd386d313f9406bf0140c2e222441afc47d977d94963dfd5a96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/bundle.json","state_url":"https://pith.science/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-15T21:56:38Z","links":{"resolver":"https://pith.science/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I","bundle":"https://pith.science/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/bundle.json","state":"https://pith.science/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J7TWYJFD2CLIFKNUQKZNLCZQ2I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:J7TWYJFD2CLIFKNUQKZNLCZQ2I","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":"00f90ca7860f152d6f58931d49eea156d6aa476f301c156519fe636a09cae468","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T10:48:21Z","title_canon_sha256":"15906e19df7a1a5fe89ed704c99943d8697b8c214bfb13e71a36ffa60e1e96f2"},"schema_version":"1.0","source":{"id":"0706.2574","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.2574","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"arxiv_version","alias_value":"0706.2574v1","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.2574","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_12","alias_value":"J7TWYJFD2CLI","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_16","alias_value":"J7TWYJFD2CLIFKNU","created_at":"2026-07-04T17:04:15Z"},{"alias_kind":"pith_short_8","alias_value":"J7TWYJFD","created_at":"2026-07-04T17:04:15Z"}],"graph_snapshots":[{"event_id":"sha256:86be1bbf40111fd386d313f9406bf0140c2e222441afc47d977d94963dfd5a96","target":"graph","created_at":"2026-07-04T17:04:15Z","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/0706.2574/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The properties of narrow-line Seyfert 1 (NLS1) galaxies, the links and correlations between them, and the physics behind them, are still not well understood. Apart from accretion rates and black hole masses, density and outflows were speculated to be among the main drivers of the NLS1 phenomenon. Here, we utilize the diagnostic power of the [SII]6716,6731 intensity ratio to measure the density of the NLR systematically and homogeneously for a large sample of NLS1 galaxies, and we perform a comparison with a sample of broad-line type 1 AGN. We report the discovery of a zone of avoidance in dens","authors_text":"2, (2) MPE, (3) Univ. of Florida, 4), (4) USTC), Dawei Xu (1), Hongyan Zhou (3, Jianyan Wei (1) ((1) NAOC, Stefanie Komossa (2), Tinggui Wang (4)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T10:48:21Z","title":"The narrow-line region of narrow-line and broad-line type 1 AGN I. A zone of avoidance in density"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.2574","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":"sha256:87b045982b9be8b6c2a490fec5068c8a85a960457c1a7a283d316da9c524f20c","target":"record","created_at":"2026-07-04T17:04:15Z","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":"00f90ca7860f152d6f58931d49eea156d6aa476f301c156519fe636a09cae468","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-18T10:48:21Z","title_canon_sha256":"15906e19df7a1a5fe89ed704c99943d8697b8c214bfb13e71a36ffa60e1e96f2"},"schema_version":"1.0","source":{"id":"0706.2574","kind":"arxiv","version":1}},"canonical_sha256":"4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e","first_computed_at":"2026-07-04T17:04:15.137336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:04:15.137336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DOOMVxvm9QfURwbBOdj0g1mzTtm9G3qGPd3IHbxdHA8D1ItgGujaapp3ryUHaARa8tRPzefmlfAxHfJjx+kaBA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:04:15.137678Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.2574","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87b045982b9be8b6c2a490fec5068c8a85a960457c1a7a283d316da9c524f20c","sha256:86be1bbf40111fd386d313f9406bf0140c2e222441afc47d977d94963dfd5a96"],"state_sha256":"ad11868c02a70048292111046a4ced497c72e41e377db6e6bbd7adcf57e0eddb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gI3c7r/u0Wvklt/ZzmrQf7y1nKDFzVgwK4OC/0uxw0dmk94FiRPzqjq8rUmUIAMTazhtBK4LvTgKPTXgfDFfAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T21:56:38.586846Z","bundle_sha256":"5af0b88f24bdb98b6a7660829049de4975125b77d6a30d8f9467354a575f59de"}}