{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:H66NQBYLQB3FQMTEN6PMQP25NV","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":"e00e4105aa977f840c10392adcdf106e520bfde86472732092bb61dcc4e50196","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-03T19:15:08Z","title_canon_sha256":"400da830692a5439361d0c014589ac110fb4ccf4fb8bb5a904bdcaa724f290e9"},"schema_version":"1.0","source":{"id":"1108.0916","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0916","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0916v1","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0916","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"pith_short_12","alias_value":"H66NQBYLQB3F","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"H66NQBYLQB3FQMTE","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"H66NQBYL","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:dc60e7591e7ef7d340b21ed0a5867866e10e2921feffa0f8c1f9a716485c9e3a","target":"graph","created_at":"2026-05-18T02:01:03Z","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":"The ionized core in the Sgr B2 Main star-forming region was imaged using the Submillimeter Array archival data observed for the H26$\\alpha$ line and continuum emission at 0.86 millimeter with an angular resolution 0.3\\arcsec. Eight hyper-compact H26$\\alpha$ emission sources were detected with a typical size in the range of 1.6--20$\\times10^2$ AU and electron density of 0.3--3$\\times10^7$ cm$^{-3}$, corresponding to the emission measure 0.4--8.4$\\times10^{10}$ cm$^{-6}$ pc. The H26$\\alpha$ line fluxes from the eight hyper-compact HII sources imply that the ionization for each of the sources mus","authors_text":"Jun-Hui Zhao, M. C. H. Wright","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-03T19:15:08Z","title":"Sagittarius B2 Main: A Cluster of Ultra-Compact HII Regions and Massive Protostellar Cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0916","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":"sha256:25e16e5aec437e81705e37057de0394585c543723b56a5549b52d4b06e2c7467","target":"record","created_at":"2026-05-18T02:01:03Z","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":"e00e4105aa977f840c10392adcdf106e520bfde86472732092bb61dcc4e50196","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-03T19:15:08Z","title_canon_sha256":"400da830692a5439361d0c014589ac110fb4ccf4fb8bb5a904bdcaa724f290e9"},"schema_version":"1.0","source":{"id":"1108.0916","kind":"arxiv","version":1}},"canonical_sha256":"3fbcd8070b80765832646f9ec83f5d6d5229dc90be28618d672d39eceec282c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fbcd8070b80765832646f9ec83f5d6d5229dc90be28618d672d39eceec282c8","first_computed_at":"2026-05-18T02:01:03.366267Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:03.366267Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xQjQ4JQeYsuxPMPMCHwNfyREodZ2l40iN4tBrSFVDScFrV7wObF8jZJRc9I7I8rsBzXf5GQypI6hYafSG4wuCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:03.366953Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0916","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25e16e5aec437e81705e37057de0394585c543723b56a5549b52d4b06e2c7467","sha256:dc60e7591e7ef7d340b21ed0a5867866e10e2921feffa0f8c1f9a716485c9e3a"],"state_sha256":"14bafa672a3647c1f71fbb389152eaee18177e28d74b5e1ad6c89ca21dfef56c"}