{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:FS2G543IARNZFV2ZKAIRMRBFWY","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":"fecb8de3e0fd645409026a137d9c5ac8f4389ea092ddf5bd1cd832ebc7751e60","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-09-01T17:50:08Z","title_canon_sha256":"cf14dd4e87cc62bd805e68ebc3e0f1d6d9b722d07ed7ccd47bc523fce3bcdca9"},"schema_version":"1.0","source":{"id":"astro-ph/9909018","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9909018","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9909018v2","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9909018","created_at":"2026-05-18T04:20:04Z"},{"alias_kind":"pith_short_12","alias_value":"FS2G543IARNZ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"FS2G543IARNZFV2Z","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"FS2G543I","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:1af174c63acd5bf16b5ba39c6abe62c49da676f1f0c832312acee2f4ee7813d1","target":"graph","created_at":"2026-05-18T04:20:04Z","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":"Most gravitational lenses are early-type galaxies in relatively low density environments -- a ``field'' rather than a ``cluster'' population. We show that field early-type galaxies with 0 < z < 1, as represented by the lens galaxies, lie on the same fundamental plane as those in rich clusters at similar redshifts. We then use the fundamental plane to measure the combined evolutionary and K-corrections for early-type galaxies in the V, I and H bands. Only for passively evolving stellar populations formed at z > 2 (H_0=65 km/s Mpc, Omega_0=0.3, Lambda_0=0.7) can the lens galaxies be matched to t","authors_text":"B.A. McLeod (1) H.-W. Rix (3), C.D. Impey (2), C.R. Keeton (2), C.S. Kochanek (1), C.Y. Peng (2) ((1) Harvard-Smithsonian Center for Astrophysics (2) Steward Observatory, E.E. Falco (1), J.A. Munoz (1), J. Lehar (1), University of Arizona (3) Max-Planck-Institut fuer Astronomie)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-09-01T17:50:08Z","title":"The Fundamental Plane of Gravitational Lens Galaxies and The Evolution of Early-Type Galaxies in Low Density Environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9909018","kind":"arxiv","version":2},"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:cfab7f4dece69f8f05de861ab974b6c5793fb068288e719c9b4641fbf81e6a38","target":"record","created_at":"2026-05-18T04:20:04Z","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":"fecb8de3e0fd645409026a137d9c5ac8f4389ea092ddf5bd1cd832ebc7751e60","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-09-01T17:50:08Z","title_canon_sha256":"cf14dd4e87cc62bd805e68ebc3e0f1d6d9b722d07ed7ccd47bc523fce3bcdca9"},"schema_version":"1.0","source":{"id":"astro-ph/9909018","kind":"arxiv","version":2}},"canonical_sha256":"2cb46ef368045b92d7595011164425b61b0ed56632c7d29d3aa86054ac6eb618","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cb46ef368045b92d7595011164425b61b0ed56632c7d29d3aa86054ac6eb618","first_computed_at":"2026-05-18T04:20:04.057552Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:20:04.057552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+loYK6JWbKvdDO1idkkRVneImRHiN9mV02q2Fcja+K7YL53ybV3jXWE5d24P0dvB4IpEdf6sg8p14079epCMCw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:20:04.058257Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9909018","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cfab7f4dece69f8f05de861ab974b6c5793fb068288e719c9b4641fbf81e6a38","sha256:1af174c63acd5bf16b5ba39c6abe62c49da676f1f0c832312acee2f4ee7813d1"],"state_sha256":"7e6bbc639b534a4c3a9dc2e759fc034fc568bed23345d7848cf0f10bd1353552"}