{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:GD5DL2G4SCTWEAW2EZA4SGIL6Y","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":"b7e1c000f1f0ff1c195fbe9a8b3515cce3b92c33284293587351b26f9e5a37f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-14T15:29:22Z","title_canon_sha256":"7a6248a15d16126cbc3c146f56bfd14fbabfb0e1a636a298d7a8e5be9cfbb29e"},"schema_version":"1.0","source":{"id":"1111.3245","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.3245","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"arxiv_version","alias_value":"1111.3245v1","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3245","created_at":"2026-05-18T01:59:33Z"},{"alias_kind":"pith_short_12","alias_value":"GD5DL2G4SCTW","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"GD5DL2G4SCTWEAW2","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"GD5DL2G4","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:bc94827e36f9cea030f1147ba8d3854d63c8e1a03188d02f5c5f98907395e032","target":"graph","created_at":"2026-05-18T01:59:33Z","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":"A sample of nearby galaxies hosting low-luminosity type 1 quasi-stellar objects (QSOs), previously studied in CO and HI emission lines, has been searched for maser emission. Using the Effelsberg 100-m telescope, we observed 17 sources with redshifts of z<0.06 and {\\delta}>-30{\\deg} for emission in the 22 GHz water vapor maser transition. The sample objects have been drawn from a wide-angle survey for optically bright QSOs (Hamburg /ESO survey, HES). No host galaxies from the sample have been detected in the water maser emission line. In this paper we review the discussion on the reasons for wa","authors_text":"A. Eckart, C. Henkel, M. Garcia-Marin, S. K\\\"onig","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-14T15:29:22Z","title":"A search for water maser emission in nearby low-luminosity QSO host galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3245","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:d021b5f3da26d1e808f157c25ca5a31ecfe1b0395ab227edee50ac75de643daf","target":"record","created_at":"2026-05-18T01:59:33Z","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":"b7e1c000f1f0ff1c195fbe9a8b3515cce3b92c33284293587351b26f9e5a37f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-11-14T15:29:22Z","title_canon_sha256":"7a6248a15d16126cbc3c146f56bfd14fbabfb0e1a636a298d7a8e5be9cfbb29e"},"schema_version":"1.0","source":{"id":"1111.3245","kind":"arxiv","version":1}},"canonical_sha256":"30fa35e8dc90a76202da2641c9190bf611d1dc3af7ead588be54647e40f8dee2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30fa35e8dc90a76202da2641c9190bf611d1dc3af7ead588be54647e40f8dee2","first_computed_at":"2026-05-18T01:59:33.755446Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:33.755446Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S2CwU0NC5auOWpO0cntToHISk3pKMHrdp3WIpqLUJeDisw7VGtEVhQrOswZ+oNHQCNOqgipjsq/3xqusWUyPCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:33.756185Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.3245","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d021b5f3da26d1e808f157c25ca5a31ecfe1b0395ab227edee50ac75de643daf","sha256:bc94827e36f9cea030f1147ba8d3854d63c8e1a03188d02f5c5f98907395e032"],"state_sha256":"c2c8ffc056d082a387f1dbb6e474961543945e9c0fa5e1c43697db623863ee35"}