{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:RVY2M6E3JOTR6HMKIDB6SNMHVG","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":"9f8ec618d23342468f20dcb036cd3ac30dac5e2774d0f038171d81d08cfd08bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-05T19:06:15Z","title_canon_sha256":"53d9347c41915eee34317ed52ab0d4b6bde18889ec4b1a631e0b6f53a7d7b92d"},"schema_version":"1.0","source":{"id":"1410.1193","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.1193","created_at":"2026-05-18T01:35:11Z"},{"alias_kind":"arxiv_version","alias_value":"1410.1193v1","created_at":"2026-05-18T01:35:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.1193","created_at":"2026-05-18T01:35:11Z"},{"alias_kind":"pith_short_12","alias_value":"RVY2M6E3JOTR","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"RVY2M6E3JOTR6HMK","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"RVY2M6E3","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:62cffe0e8983906d3f26d9f1e8a124fbc7473088328d2e37262cf65f2c12cb49","target":"graph","created_at":"2026-05-18T01:35:11Z","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":"In order to study the galaxy population of galaxy clusters with photometric data one must be able to accurately discriminate between cluster members and non-members. The redMaPPer cluster finding algorithm treats this problem probabilistically. Here, we utilize SDSS and GAMA spectroscopic membership rates to validate the redMaPPer membership probability estimates for clusters with $z\\in[0.1,0.3]$. We find small - but correctable - biases, sourced by three different systematics. The first two were expected a priori, namely blue cluster galaxies and correlated structure along the line of sight. ","authors_text":"Eduardo Rozo (U. of Arizona), Eli S. Rykoff (SLAC), Matthew Becker (Stanford), Rachel M. Reddick (Stanford), Risa H. Wechsler (Stanford)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-05T19:06:15Z","title":"redMaPPer IV: Photometric Membership Identification of Cluster Galaxies with 1% Precision"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.1193","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":"sha256:7a4a199e824b2fe0c24d3a52ab78824cdc124673ccc6e1ff7568c98bab813c82","target":"record","created_at":"2026-05-18T01:35:11Z","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":"9f8ec618d23342468f20dcb036cd3ac30dac5e2774d0f038171d81d08cfd08bf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-10-05T19:06:15Z","title_canon_sha256":"53d9347c41915eee34317ed52ab0d4b6bde18889ec4b1a631e0b6f53a7d7b92d"},"schema_version":"1.0","source":{"id":"1410.1193","kind":"arxiv","version":1}},"canonical_sha256":"8d71a6789b4ba71f1d8a40c3e93587a9b100739881b81930ee7516aaa8f51482","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d71a6789b4ba71f1d8a40c3e93587a9b100739881b81930ee7516aaa8f51482","first_computed_at":"2026-05-18T01:35:11.991094Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:11.991094Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qEKfqIpzzsAlDs88GWscvcg8HFWB6jMDpLStSYBXwKwOH/T62hjcmSzbbzVzJ1m5/bZ716j5yRov6hPF4sZYDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:11.991759Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.1193","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a4a199e824b2fe0c24d3a52ab78824cdc124673ccc6e1ff7568c98bab813c82","sha256:62cffe0e8983906d3f26d9f1e8a124fbc7473088328d2e37262cf65f2c12cb49"],"state_sha256":"3dd40b786e2ee9f3df868bb0b9aa37b8f44bb1fc836b5c937724999f8fe88a7a"}