{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:4ICKGNJOXYX75GGSJSLKSCCOCQ","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":"edbee31c65a60fd795ab9f6e36626c1d77315d0835e18fb2de42ba699d268670","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-01-15T13:39:08Z","title_canon_sha256":"5d83d193aab81f8a18f1b860aeb6c4abbe3eeaa9ab922d46e418de7e3e5d438e"},"schema_version":"1.0","source":{"id":"astro-ph/9801150","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9801150","created_at":"2026-07-04T14:15:38Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9801150v1","created_at":"2026-07-04T14:15:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9801150","created_at":"2026-07-04T14:15:38Z"},{"alias_kind":"pith_short_12","alias_value":"4ICKGNJOXYX7","created_at":"2026-07-04T14:15:38Z"},{"alias_kind":"pith_short_16","alias_value":"4ICKGNJOXYX75GGS","created_at":"2026-07-04T14:15:38Z"},{"alias_kind":"pith_short_8","alias_value":"4ICKGNJO","created_at":"2026-07-04T14:15:38Z"}],"graph_snapshots":[{"event_id":"sha256:87df7f663dd627af7a2c43f24728a682ca2e02fc336be8991bebda01f0c4b974","target":"graph","created_at":"2026-07-04T14:15:38Z","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/9801150/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a list of candidates for high redshift late-type galaxies in the field around the z=3.79 quasar PC1643+4631A. Deep U,V and R imaging has been used to search for objects with a strong Lyman break between U and V, characteristic of galaxies with high hydrogen column densities at $z\\sim 3$. A further study of the red objects detected by Hu & Ridgway (1994) has been done, allowing the temptative identification of many of them as low redshift ($z\\sim 0.4$) elliptical galaxies.","authors_text":"E. Martinez-Gonzalez (IFCA-UC), I. Ferreras, N. Benitez","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-01-15T13:39:08Z","title":"Imaging around PC1643+4631A at the Lyman limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9801150","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":"sha256:908e953af090b9eed87aa99fcd0aeb2bd6f639329d0cf7e7c86dd0fec4cc5bfe","target":"record","created_at":"2026-07-04T14:15:38Z","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":"edbee31c65a60fd795ab9f6e36626c1d77315d0835e18fb2de42ba699d268670","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-01-15T13:39:08Z","title_canon_sha256":"5d83d193aab81f8a18f1b860aeb6c4abbe3eeaa9ab922d46e418de7e3e5d438e"},"schema_version":"1.0","source":{"id":"astro-ph/9801150","kind":"arxiv","version":1}},"canonical_sha256":"e204a3352ebe2ffe98d24c96a9084e14292599276326d6a4a54814d16fb6742d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e204a3352ebe2ffe98d24c96a9084e14292599276326d6a4a54814d16fb6742d","first_computed_at":"2026-07-04T14:15:38.228476Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:15:38.228476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uKE/wb7IbeyigxuHUesX8YymBBK/Gpkmhr6XJRwtUFfi0oWzgWAyu99oC/WscDDevHeq9qPnU+FZ8GK8nmZ2BQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:15:38.228886Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9801150","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:908e953af090b9eed87aa99fcd0aeb2bd6f639329d0cf7e7c86dd0fec4cc5bfe","sha256:87df7f663dd627af7a2c43f24728a682ca2e02fc336be8991bebda01f0c4b974"],"state_sha256":"9d15c41f062d8c82392fe204640762d2d85e489da81d4cfb691618eaf5fc2964"}