{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LQM5QR2T2FQ3SDOENLIXON2W5A","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":"4696d9117a40fbdd042fb1c1ff39a84098a3d9866592729969c63686eae3dc94","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-21T08:53:32Z","title_canon_sha256":"4e5e3c22a3f8d60bc2031e2d71406cc4d854deaa0be73e5f8d6a9ee44efdd049"},"schema_version":"1.0","source":{"id":"1805.07949","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.07949","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"arxiv_version","alias_value":"1805.07949v1","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.07949","created_at":"2026-05-18T00:15:32Z"},{"alias_kind":"pith_short_12","alias_value":"LQM5QR2T2FQ3","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LQM5QR2T2FQ3SDOE","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LQM5QR2T","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:06cb9577059f15ba45f38da08dfa863039c5a7a8a264f8098ced03574cf0519a","target":"graph","created_at":"2026-05-18T00:15:32Z","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":"NGC 281 is a complex region of star formation at 2.8 kpc. This complex is situated 300 pc above the Galactic plane, and appears to be part of a 270 pc diameter ring of atomic and molecular clouds expanding at 22 km/s (Megeath et al. 2003). It appears that two modes of triggered star formation are at work here: an initial supernova to trigger the ring complex and the initial O~stars and the subsequent triggering of low mass star formation by photoevaporation driven molecular core compression. To get a complete census of the young stellar population, we use \\textbf{observations from} Chandra ACI","authors_text":"Priya Hasan","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-21T08:53:32Z","title":"Spectroscopic Study of NGC 281 West"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.07949","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:ac1af2bd852962eb4c4a66a5fea4dadbce7e5e61bb6a66b99bd73cd056f1ed38","target":"record","created_at":"2026-05-18T00:15:32Z","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":"4696d9117a40fbdd042fb1c1ff39a84098a3d9866592729969c63686eae3dc94","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-05-21T08:53:32Z","title_canon_sha256":"4e5e3c22a3f8d60bc2031e2d71406cc4d854deaa0be73e5f8d6a9ee44efdd049"},"schema_version":"1.0","source":{"id":"1805.07949","kind":"arxiv","version":1}},"canonical_sha256":"5c19d84753d161b90dc46ad1773756e811b953c2917c0d9b379f1fad0667eea2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c19d84753d161b90dc46ad1773756e811b953c2917c0d9b379f1fad0667eea2","first_computed_at":"2026-05-18T00:15:32.052308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:32.052308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uj6jhm5C1T9nwNnKvOIQ6BNFDCtWZFuEGwxXAfr7VYBs8jNygO/8gxY+RziRaQ7txU3K3GCWTAU5lqPuODbPBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:32.053146Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.07949","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac1af2bd852962eb4c4a66a5fea4dadbce7e5e61bb6a66b99bd73cd056f1ed38","sha256:06cb9577059f15ba45f38da08dfa863039c5a7a8a264f8098ced03574cf0519a"],"state_sha256":"70db1caff59e35f96a0dce83302a3f0833736dfd57024ce5227090c61190f493"}