{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:WPZBY3IXJCJ6MVHLOAMS5RPP6X","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":"e595a62ed17255605d45418c47bba5f8f80da021f8f2e446aec76ec321d637c6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-20T13:06:04Z","title_canon_sha256":"8e2b626aebb008132e9db4410e68da4cf16dc9ceaff47d6452a52545a626b8ae"},"schema_version":"1.0","source":{"id":"astro-ph/0702523","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0702523","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0702523v1","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0702523","created_at":"2026-05-18T01:09:21Z"},{"alias_kind":"pith_short_12","alias_value":"WPZBY3IXJCJ6","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"WPZBY3IXJCJ6MVHL","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"WPZBY3IX","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:9dc99a13d1fc079c186bb572d18e3db2607e173418c11b73e10ec4f22ef250bf","target":"graph","created_at":"2026-05-18T01:09:21Z","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 have studied the spatial clustering of high redshift (z > 1) extremely red objects (EROs) as a function of photometric redshift in the GOODS Southern Field using public data. A remarkable overdensity of extremely red galaxies (I-Ks > 4) is found at an average photometric redshift z=1.10. Nine objects (six are EROs) within 50 arcsec of the brightest infrared galaxy in this overdensity present spectroscopic redshifts in the range 1.094 < z < 1.101 with a line-of-sight velocity dispersion of 433 km/s typical of an Abell richness class R=0 cluster. Other potential members of this cluster, desig","authors_text":"Anastasio D\\'iaz-S\\'anchez, Antonio P\\'erez-Garrido, Isidro Villo-P\\'erez, Rafael Rebolo","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-02-20T13:06:04Z","title":"A low mass cluster of extremely red galaxies at z=1.10 in the GOODS Southern Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0702523","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:f486880604d35d75c807ae1e2f16fcb7f030dd8f0300b8056829310ec7283de3","target":"record","created_at":"2026-05-18T01:09:21Z","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":"e595a62ed17255605d45418c47bba5f8f80da021f8f2e446aec76ec321d637c6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-02-20T13:06:04Z","title_canon_sha256":"8e2b626aebb008132e9db4410e68da4cf16dc9ceaff47d6452a52545a626b8ae"},"schema_version":"1.0","source":{"id":"astro-ph/0702523","kind":"arxiv","version":1}},"canonical_sha256":"b3f21c6d174893e654eb70192ec5eff5cebae89fd182ebb2ada0f8ebbff3a0d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3f21c6d174893e654eb70192ec5eff5cebae89fd182ebb2ada0f8ebbff3a0d1","first_computed_at":"2026-05-18T01:09:21.662642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:21.662642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1c8bKSYJBhJFVwXRhWzwiliM6F+Zr9fpjYu0+usDlVv58OgNf9sr6XD2KHqv4mxaCBPZ4KibAytYO9dPA2ivAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:21.663069Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0702523","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f486880604d35d75c807ae1e2f16fcb7f030dd8f0300b8056829310ec7283de3","sha256:9dc99a13d1fc079c186bb572d18e3db2607e173418c11b73e10ec4f22ef250bf"],"state_sha256":"3d66bcb02d44eb5538931b5b104492acbdc0cf8b1aee20ecad8d939dfddca3f8"}