{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MEACKTP2UWVNDIJIFAZU2SDTGX","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":"6d235010856e3661b4a058a68b2a6aead00be7b6defc0db935ee6ef3dd76a1bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-27T22:54:00Z","title_canon_sha256":"79c14c85888ce4dfb4f01bf1e1e09a1b8450ae82e43c00aacc635162d63e5832"},"schema_version":"1.0","source":{"id":"1112.6030","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.6030","created_at":"2026-05-18T02:21:26Z"},{"alias_kind":"arxiv_version","alias_value":"1112.6030v2","created_at":"2026-05-18T02:21:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.6030","created_at":"2026-05-18T02:21:26Z"},{"alias_kind":"pith_short_12","alias_value":"MEACKTP2UWVN","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MEACKTP2UWVNDIJI","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MEACKTP2","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:f95b764328e32e1055de24dce6672baa01579f08c2c799c611814553d38b3c3d","target":"graph","created_at":"2026-05-18T02:21:26Z","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":"The present paper analyses the quasar clustering using the two-point correlation function (2pCF) and the largest existing sample of photometrically selected quasars: the SDSS NBCKDE catalogue (from the SDSS DR6). A new technique of random catalogue generation was developed for this purpose, that allows to take into account the original homogeneity of the survey without knowledge of its imaging mask. When averaged over photometrical redshifts 0.8<z_phot<2.2 the 2pCF of photometrically selected quasars is found to be approximated well with the power law w(\\theta)=(\\theta/\\theta_0)^{-\\alpha} with","authors_text":"A. V. Tugay, G. Ivashchenko, O. Vasylenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-27T22:54:00Z","title":"Angular and spatial clustering of photometrically classified quasar candidates from SDSS NBCKDE"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.6030","kind":"arxiv","version":2},"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:de08be61cd25aa7d0123225ab5471283b86db664bca91b9e8bef709deb1b36cf","target":"record","created_at":"2026-05-18T02:21:26Z","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":"6d235010856e3661b4a058a68b2a6aead00be7b6defc0db935ee6ef3dd76a1bb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-27T22:54:00Z","title_canon_sha256":"79c14c85888ce4dfb4f01bf1e1e09a1b8450ae82e43c00aacc635162d63e5832"},"schema_version":"1.0","source":{"id":"1112.6030","kind":"arxiv","version":2}},"canonical_sha256":"6100254dfaa5aad1a12828334d487335f8329011b674cc3421cc465e9353ce8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6100254dfaa5aad1a12828334d487335f8329011b674cc3421cc465e9353ce8d","first_computed_at":"2026-05-18T02:21:26.903824Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:21:26.903824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RhgMrxUKUk1HNT0zTcO/Tz+lFa3ezoqR/lWxY4vi2rLrgwkuBFjU6kNC9SSJahmaytaDcLwNOmPaagfBH3nKCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:21:26.904457Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.6030","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de08be61cd25aa7d0123225ab5471283b86db664bca91b9e8bef709deb1b36cf","sha256:f95b764328e32e1055de24dce6672baa01579f08c2c799c611814553d38b3c3d"],"state_sha256":"d62fa1375f529fcf76cb525ec9fb30536e15d6987aa1ccbcdec1c5f6695eaf68"}