{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4KQFJAQTYVNKGSSIWS4RBIDL3R","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":"7e6660a3c9ef4d624e0a570ae74fecfc03a6cfa2342fbd97eaeb445b4b3c6d36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-11T20:26:20Z","title_canon_sha256":"9e8db073342c8bdca611b7923277a4154fe0808e3577dc352c4807ce7b410910"},"schema_version":"1.0","source":{"id":"1406.3052","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.3052","created_at":"2026-05-18T02:43:35Z"},{"alias_kind":"arxiv_version","alias_value":"1406.3052v2","created_at":"2026-05-18T02:43:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.3052","created_at":"2026-05-18T02:43:35Z"},{"alias_kind":"pith_short_12","alias_value":"4KQFJAQTYVNK","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4KQFJAQTYVNKGSSI","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4KQFJAQT","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:653d8bc98f7635dc2b24451adf076bcff70dc6482561b75945d9cc83068bda3c","target":"graph","created_at":"2026-05-18T02:43:35Z","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":"We present high resolution [NII] 205 micrometer ^3P_1-^3P_0 spectra obtained with Herschel-HIFI towards a small sample of far-infrared bright star forming regions in the Galactic plane: W31C (G10.6-0.4), W49N (G43.2-0.1), W51 (G49.5-0.4), and G34.3+0.1. All sources display an emission line profile associated directly with the HII regions themselves. For the first time we also detect absorption of the [NII] 205 micrometer line by extended low-density foreground material towards W31C and W49N over a wide range of velocities. We attribute this absorption to the warm ionised medium (WIM) and find ","authors_text":"B. Mookerjea, C.M. Persson, E. Falgarone, F. Levrier, G.E. Hassel, J.H. Black, J. Pety, J.R. Goicoechea, K.M. Menten, M. Gerin, M. Olberg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-11T20:26:20Z","title":"First detection of [N II] 205 micrometer absorption in interstellar gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.3052","kind":"arxiv","version":2},"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:e48245d7af2cf0044fee59a23f7a82558da15125c828de98fb910ace2f5e0524","target":"record","created_at":"2026-05-18T02:43:35Z","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":"7e6660a3c9ef4d624e0a570ae74fecfc03a6cfa2342fbd97eaeb445b4b3c6d36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-06-11T20:26:20Z","title_canon_sha256":"9e8db073342c8bdca611b7923277a4154fe0808e3577dc352c4807ce7b410910"},"schema_version":"1.0","source":{"id":"1406.3052","kind":"arxiv","version":2}},"canonical_sha256":"e2a0548213c55aa34a48b4b910a06bdc4c3417b1e3a7ce992dcc99e47f8d2bdb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2a0548213c55aa34a48b4b910a06bdc4c3417b1e3a7ce992dcc99e47f8d2bdb","first_computed_at":"2026-05-18T02:43:35.064522Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:35.064522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UvKQ4uhPaigvsedh3Pe+9nwuReybhpdBVXUGgv4dCry74BR9l8r82O79KiuATGgAVhcBpNHecpeWPyd9+Le6BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:35.065070Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.3052","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e48245d7af2cf0044fee59a23f7a82558da15125c828de98fb910ace2f5e0524","sha256:653d8bc98f7635dc2b24451adf076bcff70dc6482561b75945d9cc83068bda3c"],"state_sha256":"71ab4eea5d05c9184e691ec442bfbd844f44dfccb8e92ec2d75fc511e220f85b"}