{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:5QRIHZGV27ALRPE2H4ZMZM6UNY","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":"797152f1b2225f963087694b734dd2399f9f23bd51b4ad925a9fc36883617b0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-19T22:27:07Z","title_canon_sha256":"5d5c1e92544ce3b815a3e8cbbd1427aa107977ca56eea41e6509c8a66a03aa5c"},"schema_version":"1.0","source":{"id":"0911.3922","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3922","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3922v1","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3922","created_at":"2026-05-18T02:34:04Z"},{"alias_kind":"pith_short_12","alias_value":"5QRIHZGV27AL","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"5QRIHZGV27ALRPE2","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"5QRIHZGV","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:52416e1ff4d359955c9d791ee427bfc137b27c862c29d1e7f98fa2d2688d0e50","target":"graph","created_at":"2026-05-18T02:34:04Z","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 a Nobeyama 45 m Radio Telescope map and Australia Telescope Compact Array pointed observations of N2H+ 1-0 emission towards the clustered, low mass star forming Oph B Core within the Ophiuchus molecular cloud. We compare these data with previously published results of high resolution NH3 (1,1) and (2,2) observations in Oph B. We use 3D Clumpfind to identify emission features in the single-dish N2H+ map, and find that the N2H+ `clumps' match well similar features previously identified in NH3 (1,1) emission, but are frequently offset to clumps identified at similar resolution in 850 m","authors_text":"J. Di Francesco, R. K. Friesen, S. Takakuwa, Y. Shimajiri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-19T22:27:07Z","title":"The Initial Conditions of Clustered Star Formation. II. N2H+ Observations of the Ophiuchus B Core"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3922","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:b7d832c77fd902ad43735ac040a14153acc07966bb78c5303a6ac35e71bb500a","target":"record","created_at":"2026-05-18T02:34:04Z","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":"797152f1b2225f963087694b734dd2399f9f23bd51b4ad925a9fc36883617b0a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-19T22:27:07Z","title_canon_sha256":"5d5c1e92544ce3b815a3e8cbbd1427aa107977ca56eea41e6509c8a66a03aa5c"},"schema_version":"1.0","source":{"id":"0911.3922","kind":"arxiv","version":1}},"canonical_sha256":"ec2283e4d5d7c0b8bc9a3f32ccb3d46e21a989efcdf0cad1a49b49438dab0a40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec2283e4d5d7c0b8bc9a3f32ccb3d46e21a989efcdf0cad1a49b49438dab0a40","first_computed_at":"2026-05-18T02:34:04.382290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:04.382290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2dgFwl8FR0hqj/bwSfU0tgyUbDrCAChx2LWbu7VqMthPf7tUGZM4RG8jZ9peXuTKaDidfbgYl/sevsuEdxFKDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:04.382877Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3922","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7d832c77fd902ad43735ac040a14153acc07966bb78c5303a6ac35e71bb500a","sha256:52416e1ff4d359955c9d791ee427bfc137b27c862c29d1e7f98fa2d2688d0e50"],"state_sha256":"baa3219bae0d89d57d42ee21ba93dba13ab87ac9dad6b8a0e3ba39477e2fd435"}