{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:ZFCQU76LPR3TRGEH4PBMBN6PXZ","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":"be167743ee9ff42e677f7bd847973756a881005ba91e329bdf189efcad542351","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-09T21:45:34Z","title_canon_sha256":"44612d96053f1bde02e300f740437efceff43618343fda58f276694a80a4769f"},"schema_version":"1.0","source":{"id":"astro-ph/0408165","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0408165","created_at":"2026-05-18T01:21:50Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0408165v1","created_at":"2026-05-18T01:21:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0408165","created_at":"2026-05-18T01:21:50Z"},{"alias_kind":"pith_short_12","alias_value":"ZFCQU76LPR3T","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZFCQU76LPR3TRGEH","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZFCQU76L","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:a1033571ceb1fb236ebd3294da8b96daf0de7539bbbb870b5492d3504f12d6d6","target":"graph","created_at":"2026-05-18T01:21:50Z","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":"Combined HST, X-ray, and ground-based optical studies show that clusters of galaxies are largely \"in place\" by $z \\sim 1$, an epoch when the Universe was less than half its present age. High resolution images show that elliptical, S0, and spiral galaxies are present in clusters at redshifts up to $z \\sim 1.3$. Analysis of the CMDs suggest that the cluster ellipticals formed their stars several Gyr earlier, near redshift 3. The morphology--density relation is well established at $z\\sim1$, with star-forming spirals and irregulars residing mostly in the outer parts of the clusters and E/S0s conce","authors_text":"B.P. Holden, G. Illingworth, H. Ford, J.P. Blakeslee, M.J. Jee, M. Postman, N. Homeier, P. Rosati, R. Demarco, R.L. White","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-08-09T21:45:34Z","title":"The Evolutionary Status of Clusters of Galaxies at z ~ 1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0408165","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":"sha256:7dfc44b0a3bbdd6632365d3afe2d228b6841f31b077951858cbaec2b5565155e","target":"record","created_at":"2026-05-18T01:21:50Z","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":"be167743ee9ff42e677f7bd847973756a881005ba91e329bdf189efcad542351","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-08-09T21:45:34Z","title_canon_sha256":"44612d96053f1bde02e300f740437efceff43618343fda58f276694a80a4769f"},"schema_version":"1.0","source":{"id":"astro-ph/0408165","kind":"arxiv","version":1}},"canonical_sha256":"c9450a7fcb7c77389887e3c2c0b7cfbe443e0db3a585f259ed74706a344afaa5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c9450a7fcb7c77389887e3c2c0b7cfbe443e0db3a585f259ed74706a344afaa5","first_computed_at":"2026-05-18T01:21:50.109487Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:50.109487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e+yIOWLawJmFGXglgbli8Jmv3PUVCgvfWVd0dbh5svF6XOOJfHx4LMBdWy56GZeWP0A+6i0khqhe+B8wg9DSCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:50.110081Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0408165","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7dfc44b0a3bbdd6632365d3afe2d228b6841f31b077951858cbaec2b5565155e","sha256:a1033571ceb1fb236ebd3294da8b96daf0de7539bbbb870b5492d3504f12d6d6"],"state_sha256":"63ed1d7aa59d1254cc200728db5d6ab53ffe8b03c96f98003acc130b6ab063d6"}