{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KHAQDJODN7NXEMCQ7OZOALVGKN","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":"14ceff72ade6f6fb327e08290e118b82bc44cae20304f8b5677571a33d153414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-25T16:20:34Z","title_canon_sha256":"395cd67ddec5e4807a3718e1c142435149e3e17f0716de2abbf7ee8a4a8ca21d"},"schema_version":"1.0","source":{"id":"0909.4735","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.4735","created_at":"2026-05-18T02:11:37Z"},{"alias_kind":"arxiv_version","alias_value":"0909.4735v1","created_at":"2026-05-18T02:11:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4735","created_at":"2026-05-18T02:11:37Z"},{"alias_kind":"pith_short_12","alias_value":"KHAQDJODN7NX","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KHAQDJODN7NXEMCQ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KHAQDJOD","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:0c486821cbe115447c1dc0f55b823430956943340fee20590b7a71251fdaebd4","target":"graph","created_at":"2026-05-18T02:11:37Z","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 report on optical integral field spectroscopy of two unrelated blue compact galaxies mapped with the 13 x 13 arcsec^2 VIMOS integral field unit at a resolution of 0.33 x 0.33 arcsec^2. Continuum and background subtracted emission line maps in the light of [O III] 5007, H-alpha, and [N II] 6584 are presented. Both galaxies display signs of ongoing perturbation and/or interaction. UM 420 is resolved for the first time to be a merging system composed of two starbursting components with an 'arm-like' structure associated with the largest component. UM 462 which is a disrupted system of irregula","authors_text":"B. L. James, M. J. Barlow, Y. G. Tsamis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-25T16:20:34Z","title":"A VLT VIMOS integral field spectroscopic study of perturbed blue compact galaxies: UM 420 and UM 462"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4735","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":"sha256:6ddf9341bb578252018e772842c514c40a53148cc7023c970f4cfd0022f7f51a","target":"record","created_at":"2026-05-18T02:11:37Z","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":"14ceff72ade6f6fb327e08290e118b82bc44cae20304f8b5677571a33d153414","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-25T16:20:34Z","title_canon_sha256":"395cd67ddec5e4807a3718e1c142435149e3e17f0716de2abbf7ee8a4a8ca21d"},"schema_version":"1.0","source":{"id":"0909.4735","kind":"arxiv","version":1}},"canonical_sha256":"51c101a5c36fdb723050fbb2e02ea6535f5a09b88cec496ac79f69de4b46851d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51c101a5c36fdb723050fbb2e02ea6535f5a09b88cec496ac79f69de4b46851d","first_computed_at":"2026-05-18T02:11:37.556861Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:37.556861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z+OknHNRAaxwSYdNh5Z+4xI8BA0H7iNYNDdHNZ59oc0pgKchf5k7ImZaKjxdNe4yM9BR+ls8MjxF05onHdsfAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:37.557708Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.4735","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ddf9341bb578252018e772842c514c40a53148cc7023c970f4cfd0022f7f51a","sha256:0c486821cbe115447c1dc0f55b823430956943340fee20590b7a71251fdaebd4"],"state_sha256":"0e16d99f8df1b83fb8a8cfca183efff034323576996fe206dbf2a8f187c8d140"}