{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:MYWOTUP6422NI2BIYPFTBIVW6E","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":"ed6d2ab1e7a7dcf8c59834a5b62f457761bee82a763175900b4654f1a39bf3fe","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-13T01:51:43Z","title_canon_sha256":"aa7592e7a98954a1fe1c77b75f0f7f206e79fad1dc761daff7332926c7dab638"},"schema_version":"1.0","source":{"id":"astro-ph/0507310","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0507310","created_at":"2026-07-04T17:15:45Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507310v1","created_at":"2026-07-04T17:15:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507310","created_at":"2026-07-04T17:15:45Z"},{"alias_kind":"pith_short_12","alias_value":"MYWOTUP6422N","created_at":"2026-07-04T17:15:45Z"},{"alias_kind":"pith_short_16","alias_value":"MYWOTUP6422NI2BI","created_at":"2026-07-04T17:15:45Z"},{"alias_kind":"pith_short_8","alias_value":"MYWOTUP6","created_at":"2026-07-04T17:15:45Z"}],"graph_snapshots":[{"event_id":"sha256:5d612789b3341ceaa7a7d6a1cb44bd0f7702fa995670a38122cb463b6f419ca3","target":"graph","created_at":"2026-07-04T17:15:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0507310/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This is the fifth paper in a series studying the stellar components, star formation histories, star formation rates and metallicities of a blue compact galaxy (BCG) sample. Based on our high-quality ground-based spectroscopic observations, we have determined the electron temperatures, electron densities, nitrogen abundances and oxygen abundances for 72 star-forming BCGs in our sample, using different oxygen abundance indicators. The oxygen abundance covers the range 7.15 < 12 + log (O/H)< 9.0, and nitrogen is found to be mostly a product of secondary nucleosynthesis for 12 + log (O/H)>8.2 and ","authors_text":"C. Li, F. Shi, F. Z. Cheng, X. Kong","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-07-13T01:51:43Z","title":"Spectroscopic study of blue compact galaxies V. oxygen abundance and the metallicity-luminosity relation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507310","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:ffe3fee37b11f8b79071542c936c20ca1113df9fb9ab94e9d300dd6521b8e401","target":"record","created_at":"2026-07-04T17:15:45Z","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":"ed6d2ab1e7a7dcf8c59834a5b62f457761bee82a763175900b4654f1a39bf3fe","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-13T01:51:43Z","title_canon_sha256":"aa7592e7a98954a1fe1c77b75f0f7f206e79fad1dc761daff7332926c7dab638"},"schema_version":"1.0","source":{"id":"astro-ph/0507310","kind":"arxiv","version":1}},"canonical_sha256":"662ce9d1fee6b4d46828c3cb30a2b6f12e8341a6a6ef4d4c69bffd051f8f0524","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"662ce9d1fee6b4d46828c3cb30a2b6f12e8341a6a6ef4d4c69bffd051f8f0524","first_computed_at":"2026-07-04T17:15:45.663435Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:15:45.663435Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qKXDlECFcH8PBPwLNuqQwCs8uXOPF/Jl4LrPgvhh8er5bWmX75ILtmDu5cHqlE1QxaqDJR+nTKtKDuZ0q0gcBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:15:45.663869Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0507310","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffe3fee37b11f8b79071542c936c20ca1113df9fb9ab94e9d300dd6521b8e401","sha256:5d612789b3341ceaa7a7d6a1cb44bd0f7702fa995670a38122cb463b6f419ca3"],"state_sha256":"36ba3e9e74aebb9693df2c1838b84d9e4d8e2ea261dd041491431ef11b0b63bb"}