{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:J2LNOIREQ3CCYEPZSFMRSA327K","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":"ed4bc55f0f93d3c1852aa7d10582dff38dd5898b3128ee47ee5ae9d641ad83a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-20T20:02:28Z","title_canon_sha256":"d19f3353b249ad9a1ab4b908f2f47be5c58e947b85a7bdf3b30a5bc50c052ef2"},"schema_version":"1.0","source":{"id":"1606.06303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.06303","created_at":"2026-05-18T01:10:28Z"},{"alias_kind":"arxiv_version","alias_value":"1606.06303v1","created_at":"2026-05-18T01:10:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.06303","created_at":"2026-05-18T01:10:28Z"},{"alias_kind":"pith_short_12","alias_value":"J2LNOIREQ3CC","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"J2LNOIREQ3CCYEPZ","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"J2LNOIRE","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:01cb97934c6a4d7d2823b2173c986ed9e0a6078f9f3cfef9fedb3c0c320476e6","target":"graph","created_at":"2026-05-18T01:10:28Z","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":"We report the results of a Green Bank Telescope survey for water masers, ammonia (1,1) and (2,2), and the H66-alpha recombination line toward 506 luminous compact 24 micron-emitting regions in the Andromeda Galaxy (M31). We include the 206 sources observed in the Darling (2011) water maser survey for completeness. The survey was sensitive enough to detect any maser useful for ~10 microarcsecond/yr astrometry. No new water masers, ammonia lines, or H66-alpha recombination lines were detected individually or in spectral stacks reaching rms noise levels of ~3 mJy and ~0.2 mJy, respectively, in 3.","authors_text":"Benjamin Gerard, Jeremy Darling, Kelsey Lawrence, Nikta Amiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-20T20:02:28Z","title":"Water Masers in the Andromeda Galaxy: I. A Survey for Water Masers, Ammonia, and Hydrogen Recombination Lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.06303","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:c31d4c6437bff1b3248b8b88650428f78d858d4022d5c24e6bad6f5ae902462c","target":"record","created_at":"2026-05-18T01:10:28Z","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":"ed4bc55f0f93d3c1852aa7d10582dff38dd5898b3128ee47ee5ae9d641ad83a8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-06-20T20:02:28Z","title_canon_sha256":"d19f3353b249ad9a1ab4b908f2f47be5c58e947b85a7bdf3b30a5bc50c052ef2"},"schema_version":"1.0","source":{"id":"1606.06303","kind":"arxiv","version":1}},"canonical_sha256":"4e96d7222486c42c11f9915919037afabf972553036ec7022a4a66e9f7f90927","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e96d7222486c42c11f9915919037afabf972553036ec7022a4a66e9f7f90927","first_computed_at":"2026-05-18T01:10:28.864453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:28.864453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1vrZZuR0burRMwCzNJlUs+aI7Jl3LVfcBnc01Hyn5IcER0eJY8ixbQzkLg+j9ZeLYmZpF/I4zWAwbIvCYeCBBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:28.864850Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.06303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c31d4c6437bff1b3248b8b88650428f78d858d4022d5c24e6bad6f5ae902462c","sha256:01cb97934c6a4d7d2823b2173c986ed9e0a6078f9f3cfef9fedb3c0c320476e6"],"state_sha256":"7cd1dc3d406a4cd3392f7240d19cb5d68431b53bb34df0e79f33dbb4a930f60e"}