{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:MKTDBPKXEM3Y4YFXUFBQLWYZRH","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":"cde7bc4a48e42892043b23d17662babd45de10bc100d76875470de1a673f4f1c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-13T10:17:04Z","title_canon_sha256":"bd7ec25917b04a26564a1309a0a3a5f5d07204ad7277196383b158eb2021f5e9"},"schema_version":"1.0","source":{"id":"astro-ph/9910228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9910228","created_at":"2026-07-04T16:11:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9910228v1","created_at":"2026-07-04T16:11:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9910228","created_at":"2026-07-04T16:11:42Z"},{"alias_kind":"pith_short_12","alias_value":"MKTDBPKXEM3Y","created_at":"2026-07-04T16:11:42Z"},{"alias_kind":"pith_short_16","alias_value":"MKTDBPKXEM3Y4YFX","created_at":"2026-07-04T16:11:42Z"},{"alias_kind":"pith_short_8","alias_value":"MKTDBPKX","created_at":"2026-07-04T16:11:42Z"}],"graph_snapshots":[{"event_id":"sha256:072d48351a6ee66d2310635c0cfa2e1b0695abf7fa3cb5cc04a1f2d26b6ee75e","target":"graph","created_at":"2026-07-04T16:11:42Z","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/9910228/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We analyse the redshift space topology and geometry of the nearby Universe by computing the Minkowski functionals of the Updated Zwicky Catalogue (UZC). The UZC contains the redshifts of almost 20,000 galaxies, is 96% complete to the limiting magnitude m_Zw=15.5 and includes the Center for Astrophysics (CfA) Redshift Survey (CfA2). From the UZC we can extract volume limited samples reaching a depth of 70 hMpc before sparse sampling dominates. We quantify the shape of the large-scale galaxy distribution by deriving measures of planarity and filamentarity from the Minkowski functionals. The near","authors_text":"Antonaldo Diaferio (MPA Garching), Jens Schmalzing (MPA Garching, U. of Munich)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-10-13T10:17:04Z","title":"Topology and Geometry of the CfA2 Redshift Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9910228","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":"sha256:9db86af2134a81e8b1f41acd2a466476a0f3efd702754d558e9f1ece4f0220d1","target":"record","created_at":"2026-07-04T16:11:42Z","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":"cde7bc4a48e42892043b23d17662babd45de10bc100d76875470de1a673f4f1c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-10-13T10:17:04Z","title_canon_sha256":"bd7ec25917b04a26564a1309a0a3a5f5d07204ad7277196383b158eb2021f5e9"},"schema_version":"1.0","source":{"id":"astro-ph/9910228","kind":"arxiv","version":1}},"canonical_sha256":"62a630bd5723378e60b7a14305db1989d8a27ac057aec267ac0d0fec566721ce","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62a630bd5723378e60b7a14305db1989d8a27ac057aec267ac0d0fec566721ce","first_computed_at":"2026-07-04T16:11:42.214683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:11:42.214683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DMDeqlYU5tLtgnFTUVE3QLfzuamQQvAaEmzvmYG/nBR4OMhyN3kRMJNcwsBwgTMZs/SkojqoHU59ExroP/XdAw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:11:42.215084Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9910228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9db86af2134a81e8b1f41acd2a466476a0f3efd702754d558e9f1ece4f0220d1","sha256:072d48351a6ee66d2310635c0cfa2e1b0695abf7fa3cb5cc04a1f2d26b6ee75e"],"state_sha256":"27b3f6feec1ee5aa4bfdb31c64b478d3ee910de646afc5e8999ef39b9bbb35ec"}