{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:HJQ2DJMZKKGJEOSREXTBJR2ZIT","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":"2d11d9b181b1101f68c040bff10ba76e9db86613caa66d5a2e57233e1e85b64a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-09T21:00:02Z","title_canon_sha256":"bf4d974111135df96119a94ee08c7b17c57e2e46a3766b5e694c3bae52abc1a6"},"schema_version":"1.0","source":{"id":"1201.1907","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1907","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1907v1","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1907","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"HJQ2DJMZKKGJ","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HJQ2DJMZKKGJEOSR","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HJQ2DJMZ","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:9a19ed2f4fa17b73e654c86a0a7f444fcc330b40fcd02a3e0ba0c2c87d34a950","target":"graph","created_at":"2026-05-18T01:58:53Z","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 and analyse optical and ultra-violet colours for passive and optically-red Coma cluster galaxies for which we have spectroscopic age and element abundance estimates. Our sample of 150 objects covers a wide range in mass, from giant ellipticals to the bright end of the dwarf-galaxy regime. We focus on the colours FUV-i, NUV-i, FUV-NUV, u*-g and g-i. We find that all of these colours are correlated with both luminosity and velocity dispersion at the >5 sigma level, with FUV-i and FUV-NUV becoming bluer with increasing `mass' while the other colours become redder. We perform an empiric","authors_text":"David Carter (LJMU), John R. Lucey (Durham), Russell J. Smith (Durham)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-09T21:00:02Z","title":"What drives the ultra-violet colours of passive galaxies?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1907","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:e5b8246bfb7a62bff6ac396ccb2c9a3e6357e05dff13440489faedd7e28ddcd9","target":"record","created_at":"2026-05-18T01:58:53Z","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":"2d11d9b181b1101f68c040bff10ba76e9db86613caa66d5a2e57233e1e85b64a","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-09T21:00:02Z","title_canon_sha256":"bf4d974111135df96119a94ee08c7b17c57e2e46a3766b5e694c3bae52abc1a6"},"schema_version":"1.0","source":{"id":"1201.1907","kind":"arxiv","version":1}},"canonical_sha256":"3a61a1a599528c923a5125e614c75944fb827da3a4da0a4bc6f47b2a87c05679","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a61a1a599528c923a5125e614c75944fb827da3a4da0a4bc6f47b2a87c05679","first_computed_at":"2026-05-18T01:58:53.765587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:53.765587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aTYv+Q1tP92ryIvwzlWLWWyyRgvf6ryZBpquhGJpugVW8Sm7qrkTuh/dWV8nrO6cjlrxdYf7zVbfIaJJf43hDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:53.766144Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1907","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5b8246bfb7a62bff6ac396ccb2c9a3e6357e05dff13440489faedd7e28ddcd9","sha256:9a19ed2f4fa17b73e654c86a0a7f444fcc330b40fcd02a3e0ba0c2c87d34a950"],"state_sha256":"bf12efd29370559be9a95c2261ee918aa777c86565fa11fe145033448972449e"}