{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:Q2NQRSS5G7UPL4XITHW5GISCRR","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":"247387c73ab0f47369d6787bbd93897594fddf9a86013cca69defd56dfe6aa98","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-10T18:11:42Z","title_canon_sha256":"08b6bf6184fc64af258fe35eaea4ce24e5abad01d7699688f24fb7dd88be3347"},"schema_version":"1.0","source":{"id":"2109.05048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.05048","created_at":"2026-07-05T03:19:21Z"},{"alias_kind":"arxiv_version","alias_value":"2109.05048v1","created_at":"2026-07-05T03:19:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.05048","created_at":"2026-07-05T03:19:21Z"},{"alias_kind":"pith_short_12","alias_value":"Q2NQRSS5G7UP","created_at":"2026-07-05T03:19:21Z"},{"alias_kind":"pith_short_16","alias_value":"Q2NQRSS5G7UPL4XI","created_at":"2026-07-05T03:19:21Z"},{"alias_kind":"pith_short_8","alias_value":"Q2NQRSS5","created_at":"2026-07-05T03:19:21Z"}],"graph_snapshots":[{"event_id":"sha256:f8ddc7c78c5cd82216605e72b81aeeaee2e904886689dbfc5bbbbd6b86bd0071","target":"graph","created_at":"2026-07-05T03:19:21Z","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/2109.05048/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Observation of CO emission around asymptotic giant branch (AGB) stars is the primary method to determine gas mass-loss rates. While radiative transfer models have shown that molecular levels of CO can become mildly inverted, causing maser emission, CO maser emission has yet to be confirmed observationally. High-resolution observations of the CO emission around AGB stars now have the brightness temperature sensitivity to detect possible weak CO maser emission. We used high angular resolution observations taken with the Atacama Large Millimeter/submillimeter Array (ALMA) to observe the small-sca","authors_text":"D. Tafoya, T. Khouri, W.H.T. Vlemmings","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-10T18:11:42Z","title":"Maser emission from the CO envelope of the asymptotic giant branch star W Hydrae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.05048","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:c736593bd560b8618eba421cfbd95316ed850e7077b14537a8beb9aa47ede77b","target":"record","created_at":"2026-07-05T03:19:21Z","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":"247387c73ab0f47369d6787bbd93897594fddf9a86013cca69defd56dfe6aa98","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-09-10T18:11:42Z","title_canon_sha256":"08b6bf6184fc64af258fe35eaea4ce24e5abad01d7699688f24fb7dd88be3347"},"schema_version":"1.0","source":{"id":"2109.05048","kind":"arxiv","version":1}},"canonical_sha256":"869b08ca5d37e8f5f2e899edd322428c4cc78142a6c605c4ba3ebe6cf03996cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"869b08ca5d37e8f5f2e899edd322428c4cc78142a6c605c4ba3ebe6cf03996cc","first_computed_at":"2026-07-05T03:19:21.899532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:19:21.899532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BcMySKPI+yoAAKujyrpG33MDrPxNJjqfl8iN2e/6zK04riyFBKCKlqRQU5bChHDDu8vjiOaApva7QvuCz4IxDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:19:21.899903Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.05048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c736593bd560b8618eba421cfbd95316ed850e7077b14537a8beb9aa47ede77b","sha256:f8ddc7c78c5cd82216605e72b81aeeaee2e904886689dbfc5bbbbd6b86bd0071"],"state_sha256":"0530a404a39d44484d6c839cc593e34604ec6158c27a821e101dfbad2abaf18c"}