{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:PEHWEHPE36PV7OSGNGDLFLFBXA","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":"ccea718fece042456cbcf9a2503a6ae9dea38321a89424c6347e741f4a2163f3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-26T10:24:19Z","title_canon_sha256":"51c876dce2aff84fa7c0f118ba754433d17ae41f1d60f6e13b092cf82da02974"},"schema_version":"1.0","source":{"id":"astro-ph/0510734","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0510734","created_at":"2026-05-18T01:40:33Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0510734v1","created_at":"2026-05-18T01:40:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0510734","created_at":"2026-05-18T01:40:33Z"},{"alias_kind":"pith_short_12","alias_value":"PEHWEHPE36PV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"PEHWEHPE36PV7OSG","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"PEHWEHPE","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:0e71b7a7a5a7f122b87bc0d1fe87b9a3809c978f4d6432ac783cb1394f929e09","target":"graph","created_at":"2026-05-18T01:40:33Z","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":"The study of gas outside the plane of disc galaxies is crucial to understanding the circulation of material within a galaxy and between galaxies and the intergalactic environment. We present new HI observations of the edge-on galaxy NGC891, which show an extended halo component lagging behind the disc in rotation. We compare these results for NGC891 with other detections of gaseous haloes. Finally, we present a dynamical model for the formation of extra-planar gas.","authors_text":"(2) ASTRON, (3) INAF-Bologna, 4) ((1) University of Oxford, (4) Kapteyn Institute), F. Fraternali (1), J.J. Binney (1), R. Sancisi (3, T. Oosterloo (2)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-10-26T10:24:19Z","title":"The gaseous haloes of disc galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0510734","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:a492975292423e5511b6b17a95165b2e85478797f9add8dc61170ef509f8fdb7","target":"record","created_at":"2026-05-18T01:40:33Z","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":"ccea718fece042456cbcf9a2503a6ae9dea38321a89424c6347e741f4a2163f3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-10-26T10:24:19Z","title_canon_sha256":"51c876dce2aff84fa7c0f118ba754433d17ae41f1d60f6e13b092cf82da02974"},"schema_version":"1.0","source":{"id":"astro-ph/0510734","kind":"arxiv","version":1}},"canonical_sha256":"790f621de4df9f5fba466986b2aca1b81715bb93192aa88da521cee969cf80e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"790f621de4df9f5fba466986b2aca1b81715bb93192aa88da521cee969cf80e6","first_computed_at":"2026-05-18T01:40:33.204363Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:33.204363Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HioKdZw85sd05MdSNCOJEDxefE7QHc7NdAqN1V4hYDFH/oX1gRwQi8q8egOMF0asAk3SCalDjWW0DbCCMDPAAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:33.205024Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0510734","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a492975292423e5511b6b17a95165b2e85478797f9add8dc61170ef509f8fdb7","sha256:0e71b7a7a5a7f122b87bc0d1fe87b9a3809c978f4d6432ac783cb1394f929e09"],"state_sha256":"425c801fa532880c36b2003cb31f76dbcc8f5f64d342795e31cc66034f51db3e"}