{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ESF7XWC7BT6MGKQI6XMM652HJC","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":"af62b9b2a39f2274cf1005279dec69a49219ab89f5d256b7b21dcfcf81db314c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-12T14:28:57Z","title_canon_sha256":"e837488ad73d2723c956eb7e0969f51f5f20e4dfe393967213a06ea12845d97d"},"schema_version":"1.0","source":{"id":"1704.03766","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.03766","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"arxiv_version","alias_value":"1704.03766v1","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.03766","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"pith_short_12","alias_value":"ESF7XWC7BT6M","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"ESF7XWC7BT6MGKQI","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"ESF7XWC7","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:825d06e9b4a574ff2bd0c6098b37d0676ff06220081f5adaf374129d898917cc","target":"graph","created_at":"2026-05-18T00:39:35Z","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":"Aims. We present new IRAM Plateau de Bure Interferometer observations of Arp 220 in HCN, HCO$^{+}$, HN$^{13}$C J=1-0, C$_{2}$H N=1-0, SiO J = 2-1, HNCO J$_{k,k'}$ = 5$_{0,4}$ - 4$_{0,4}$, CH$_{3}$CN(6-5), CS J=2-1 and 5-4 and $^{13}$CO J=1-0 and 2-1 and of NGC 6240 in HCN, HCO$^{+}$ J = 1-0 and C$_{2}$H N = 1-0. In addition, we present Atacama Large Millimeter/submillmeter Array science verification observations of Arp 220 in CS J = 4-3 and CH$_{3}$CN(10-9). Various lines are used to analyse the physical conditions of the molecular gas including the [$^{12}$CO]/[$^{13}$CO] and [$^{12}$CO]/[C$^","authors_text":"Dennis Downes, Kazimierz Sliwa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-12T14:28:57Z","title":"PdBI U/LIRG Survey (PULS): Dense Molecular Gas in Arp 220 and NGC 6240"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.03766","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:e18b7ed1acdc413807da5ee09c8866fd2d1885d3d5ec33d77adb3c28c4f4b4aa","target":"record","created_at":"2026-05-18T00:39:35Z","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":"af62b9b2a39f2274cf1005279dec69a49219ab89f5d256b7b21dcfcf81db314c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-12T14:28:57Z","title_canon_sha256":"e837488ad73d2723c956eb7e0969f51f5f20e4dfe393967213a06ea12845d97d"},"schema_version":"1.0","source":{"id":"1704.03766","kind":"arxiv","version":1}},"canonical_sha256":"248bfbd85f0cfcc32a08f5d8cf774748a1fa9b4abe1e8cf26e509e3a414e8ed8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"248bfbd85f0cfcc32a08f5d8cf774748a1fa9b4abe1e8cf26e509e3a414e8ed8","first_computed_at":"2026-05-18T00:39:35.859240Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:35.859240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lEYhil2FGlQwcBj8X4ATbUVx3ne2ZGMJ8hRN8z9luuXh7SCldWIuBwXGaUSh/Qj4NvI0BPFYXjtW0sOSvlqlCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:35.859845Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.03766","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e18b7ed1acdc413807da5ee09c8866fd2d1885d3d5ec33d77adb3c28c4f4b4aa","sha256:825d06e9b4a574ff2bd0c6098b37d0676ff06220081f5adaf374129d898917cc"],"state_sha256":"416cff63546ace8595a933c1a1c2ba187b46d959be6315e243ff83ebc48ee7af"}