{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2EFJTRV45ETFUJAASJU3DEHLGW","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":"a814114c6268899e700dc23a927bf6a7f98eb89671ed5192cd4e605bf90ea31e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-16T04:49:22Z","title_canon_sha256":"dc9fa2ad992cbb54fb9c956bd322dbd04e3cc9b10c34952c940e0debdcd61231"},"schema_version":"1.0","source":{"id":"1702.04857","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.04857","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"arxiv_version","alias_value":"1702.04857v1","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.04857","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"pith_short_12","alias_value":"2EFJTRV45ETF","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2EFJTRV45ETFUJAA","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2EFJTRV4","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:d429591dc61d61dc05ccdd70775b8dcb36cd6438a3dfb2f40b4b8e9319059d50","target":"graph","created_at":"2026-05-18T00:49:09Z","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 present 2.5-square-degree C$_{2}$H N=1-0 and N$_2$H$^+$ J=1-0 maps of the $\\rho$ Ophiuchi molecular cloud complex. These are the first large-scale maps of the $\\rho$ Ophiuchi molecular cloud complex with these two tracers. The C$_{2}$H emission is spatially more extended than the N$_2$H$^+$ emission. One faint N$_2$H$^+$ clump Oph-M and one C$_{2}$H ring Oph-RingSW are identified for the first time. The observed C$_{2}$H to N$_{2}$H$^{+}$ abundance ratio ([C$_{2}$H]/[N$_{2}$H$^{+}$]) varies between 5 and 110. We modeled the C$_{2}$H and N$_2$H$^+$ abundances with 1-D chemical models which s","authors_text":"Di Li, Edwin A. Bergin, Junzhi Wang, Lei Qian, Qiang Chang, Zhichen Pan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-16T04:49:22Z","title":"Large-Scale Spectroscopic Mapping of the $\\rho$ Ophiuchi Molecular Cloud Complex I. The C$_{2}$H to N$_2$H$^+$ Ratio as a Signpost of Cloud Characteristics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.04857","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:a3dfc79aabac38e4dc918354d87f0cff9e5834979ae7d332ed09651ecc3de071","target":"record","created_at":"2026-05-18T00:49:09Z","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":"a814114c6268899e700dc23a927bf6a7f98eb89671ed5192cd4e605bf90ea31e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-16T04:49:22Z","title_canon_sha256":"dc9fa2ad992cbb54fb9c956bd322dbd04e3cc9b10c34952c940e0debdcd61231"},"schema_version":"1.0","source":{"id":"1702.04857","kind":"arxiv","version":1}},"canonical_sha256":"d10a99c6bce9265a24009269b190eb359bdc8d352003f001a2bc4cfe5c6694f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d10a99c6bce9265a24009269b190eb359bdc8d352003f001a2bc4cfe5c6694f2","first_computed_at":"2026-05-18T00:49:09.066689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:09.066689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bhG8VY73rUmFwlQncdsr2UDw+psC9jTyYno9vcX2B1dMc9ouj5VxJR1vyXql6+BZeci8LVDVZPOHdGEvaai1BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:09.067264Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.04857","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3dfc79aabac38e4dc918354d87f0cff9e5834979ae7d332ed09651ecc3de071","sha256:d429591dc61d61dc05ccdd70775b8dcb36cd6438a3dfb2f40b4b8e9319059d50"],"state_sha256":"4fd38e66d4489885ccf6781bc64ab302a339162c9972894f01963730f330a2a1"}