{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2PHEWIRZLKB2KDDX75NHI63N4O","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":"ffecf106ddf83463906962f7cbbefb109a6e55016652695649e340403bc46063","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-22T14:51:24Z","title_canon_sha256":"236e8bfca549bc2a288601b85ab8df45fbf664bb63dc122844b5e0f3efb9ccad"},"schema_version":"1.0","source":{"id":"1202.4927","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.4927","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"arxiv_version","alias_value":"1202.4927v1","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.4927","created_at":"2026-05-18T01:58:22Z"},{"alias_kind":"pith_short_12","alias_value":"2PHEWIRZLKB2","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2PHEWIRZLKB2KDDX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2PHEWIRZ","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:a89a21ab970de088ce83d99bcd43f21aefdc93b9801ed32b8235836357d8056d","target":"graph","created_at":"2026-05-18T01:58:22Z","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 search for the presence of substructure, a non-Gaussian, asymmetrical velocity distribution of galaxies, and large peculiar velocities of the main galaxies in galaxy clusters with at least 50 member galaxies, drawn from the SDSS DR8. We employ a number of 3D, 2D, and 1D tests to analyse the distribution of galaxies in clusters: 3D normal mixture modelling, the Dressler-Shectman test, the Anderson-Darling and Shapiro-Wilk tests and others. We find the peculiar velocities of the main galaxies, and use principal component analysis to characterise our results. More than 80% of the clusters in o","authors_text":"A. Ahvensalmi, E. Saar, E. Tago, E. Tempel, J. Einasto, J. Vennik, L. J. Liivamagi, M. Einasto, P. Heinamaki, P. Nurmi, V. J. Martinez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-22T14:51:24Z","title":"Multimodality in galaxy clusters from SDSS DR8: substructure and velocity distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.4927","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:a6943fc68c36f361e716ab4046093904629bf044787718711cd2c2f0ebc1c742","target":"record","created_at":"2026-05-18T01:58:22Z","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":"ffecf106ddf83463906962f7cbbefb109a6e55016652695649e340403bc46063","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-02-22T14:51:24Z","title_canon_sha256":"236e8bfca549bc2a288601b85ab8df45fbf664bb63dc122844b5e0f3efb9ccad"},"schema_version":"1.0","source":{"id":"1202.4927","kind":"arxiv","version":1}},"canonical_sha256":"d3ce4b22395a83a50c77ff5a747b6de3aac481fafc0d1c3e9068932cca4e4e77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3ce4b22395a83a50c77ff5a747b6de3aac481fafc0d1c3e9068932cca4e4e77","first_computed_at":"2026-05-18T01:58:22.384597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:22.384597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"evutRehS2RFuiXfn9DTs/aUf+0Vg9MMAAe9nWPEu0Wr37SApZW09tiIe47zJvvrRDtDOSItDDw7d4dSP/EK5BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:22.385208Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.4927","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a6943fc68c36f361e716ab4046093904629bf044787718711cd2c2f0ebc1c742","sha256:a89a21ab970de088ce83d99bcd43f21aefdc93b9801ed32b8235836357d8056d"],"state_sha256":"38490c8acc7998db391ea85247fda50e45546bd1eab5c46accf9ec1cb7b4436c"}