{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:AGW3W2RQO24GKEXOGQ2EB3OSNE","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":"ff4d94c04ffe32239f13d13648df166aa43bf1ad9f204c784932de28ed30dc46","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-04-04T22:06:26Z","title_canon_sha256":"b14e99f24503a8473392165bb25d268b180f7465d56ac169e7e8714153d17df4"},"schema_version":"1.0","source":{"id":"astro-ph/9604028","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9604028","created_at":"2026-05-18T01:40:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9604028v1","created_at":"2026-05-18T01:40:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9604028","created_at":"2026-05-18T01:40:21Z"},{"alias_kind":"pith_short_12","alias_value":"AGW3W2RQO24G","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_16","alias_value":"AGW3W2RQO24GKEXO","created_at":"2026-05-18T12:25:47Z"},{"alias_kind":"pith_short_8","alias_value":"AGW3W2RQ","created_at":"2026-05-18T12:25:47Z"}],"graph_snapshots":[{"event_id":"sha256:28666d04acebd1c866976311fc42fcd1fd39732db894d9fc8bbe359cfde96193","target":"graph","created_at":"2026-05-18T01:40:21Z","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 spectroscopic study of the 138 field galaxies to a redshift z = 0.3 from the I-selected Canada-France Redshift Survey. 117(85%) spectra exhibit at least H alpha in emission, the remaining 21(15%) are purely absorption-line spectra. We focus our analysis on spectra with H alpha and H beta in emission, accounting for about half of this low-z sample, which we classify using emission-line ratio diagrams. Using photoionization models, we determine the extreme boundaries of H II galaxies in these diagnostic diagrams, and demonstrate that the emission-line ratios of a significant fractio","authors_text":"C. Rola, D. Crampton, F. Hammer, G. Stasinska, L. Tresse, O. Le Fevre, S. J. Lilly","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1996-04-04T22:06:26Z","title":"The Canada-France Redshift Survey XII: Nature of emission-line field galaxy population up to z = 0.3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9604028","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:c03d925d17ab74a947d2404c52c9748685efcfe8e9caa2d6553084cabca1883d","target":"record","created_at":"2026-05-18T01:40:21Z","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":"ff4d94c04ffe32239f13d13648df166aa43bf1ad9f204c784932de28ed30dc46","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-04-04T22:06:26Z","title_canon_sha256":"b14e99f24503a8473392165bb25d268b180f7465d56ac169e7e8714153d17df4"},"schema_version":"1.0","source":{"id":"astro-ph/9604028","kind":"arxiv","version":1}},"canonical_sha256":"01adbb6a3076b86512ee343440edd26909115e12ade13fd5a43c20ea8b846901","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"01adbb6a3076b86512ee343440edd26909115e12ade13fd5a43c20ea8b846901","first_computed_at":"2026-05-18T01:40:21.492596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:21.492596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fiB2kiOFjMOkMsPo6204JcEHCfzd9NGh3dJyB22hq9IXV9TIRk+dqoR8ySExFPtXmoj48vKJaFHr5y+6Y50aBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:21.493087Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9604028","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c03d925d17ab74a947d2404c52c9748685efcfe8e9caa2d6553084cabca1883d","sha256:28666d04acebd1c866976311fc42fcd1fd39732db894d9fc8bbe359cfde96193"],"state_sha256":"dea600ecdbd51ac99d0d270ba2c983d3519c58d16e54fd746c926056ad789867"}