{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:BVT4Q4BTKL36RPBDUE4TFEUR5N","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":"5dd6252d54f64856f45c128896a16730e417dd87fce80f978476574b039ca102","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-07T01:45:48Z","title_canon_sha256":"d1409ea50654ea4be3472256f7fd1228b2e1426f85c1ccb3cb403abdd6ab4c75"},"schema_version":"1.0","source":{"id":"1504.01453","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.01453","created_at":"2026-05-18T01:40:49Z"},{"alias_kind":"arxiv_version","alias_value":"1504.01453v1","created_at":"2026-05-18T01:40:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.01453","created_at":"2026-05-18T01:40:49Z"},{"alias_kind":"pith_short_12","alias_value":"BVT4Q4BTKL36","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"BVT4Q4BTKL36RPBD","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"BVT4Q4BT","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:592ae36e2669ab9278a0dc874391f347d00aa84c2df8036b81d936ccbd0ced90","target":"graph","created_at":"2026-05-18T01:40:49Z","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":"Carbon monoxide (CO) is one of the primary coolants of gas and an easily accessible tracer of molecular gas in spiral galaxies but it is unclear if CO plays a similar role in metal poor dwarfs. We carried out a deep observation with IRAM 30 m to search for CO emission by targeting the brightest far-IR peak in a nearby extremely metal poor galaxy, Sextans A, with 7% Solar metallicity. A weak CO J=1-0 emission is seen, which is already faint enough to place a strong constraint on the conversion factor (a_CO) from the CO luminosity to the molecular gas mass that is derived from the spatially reso","authors_text":"George Helou (Caltech), Junzhi Wang (SHAO), Lee Armus, Qiusheng Gu (NJU), Sabrina Stierwalt (Virginia), Yong Shi (NJU), Yu Gao (PMO), Zhi-Yu Zhang (Edinburgh)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-07T01:45:48Z","title":"The Weak Carbon Monoxide Emission In An Extremely Metal Poor Galaxy, Sextans A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.01453","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":"sha256:4cf64383b0439a002f0fe3b7b0a8a0c92d0c4b300346f510134ab0d7a1c9cd9a","target":"record","created_at":"2026-05-18T01:40:49Z","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":"5dd6252d54f64856f45c128896a16730e417dd87fce80f978476574b039ca102","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-07T01:45:48Z","title_canon_sha256":"d1409ea50654ea4be3472256f7fd1228b2e1426f85c1ccb3cb403abdd6ab4c75"},"schema_version":"1.0","source":{"id":"1504.01453","kind":"arxiv","version":1}},"canonical_sha256":"0d67c8703352f7e8bc23a139329291eb588b5cb986435288709673026efe385c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d67c8703352f7e8bc23a139329291eb588b5cb986435288709673026efe385c","first_computed_at":"2026-05-18T01:40:49.167589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:49.167589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yps4Of0SQ8uWTm15C6FH0SlcLFIHvKxJ5thfAEBuSNDFJDAK5m/TvyABxcklpXd8b1nqb8UVrFzSgi3hlxbCDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:49.168187Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.01453","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4cf64383b0439a002f0fe3b7b0a8a0c92d0c4b300346f510134ab0d7a1c9cd9a","sha256:592ae36e2669ab9278a0dc874391f347d00aa84c2df8036b81d936ccbd0ced90"],"state_sha256":"57dca62473f51b16a3a6869d18c94550b95268e9f999119a64d37f8ae6720032"}