{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:26HCNV6REZILRK5H7O3Q65IQWA","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":"a29bcf0ab1ecc762ba7df4a92f6aeee6f1a85c0cd3aa90036a5b385f966604e8","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2010-11-09T18:57:15Z","title_canon_sha256":"84b68a3ff336d67845ce7d5e3936ec1ba1829ef6e323b12433018c07dc2e4f87"},"schema_version":"1.0","source":{"id":"1011.2173","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2173","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2173v3","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2173","created_at":"2026-05-18T02:04:49Z"},{"alias_kind":"pith_short_12","alias_value":"26HCNV6REZIL","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"26HCNV6REZILRK5H","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"26HCNV6R","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:7a29ad24245e7c220c57c9d1892f657ad59d3f17d2fb5b50504a2dd618ead4c0","target":"graph","created_at":"2026-05-18T02:04:49Z","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 present a catalogue of about 6 million unresolved photometric detections in the Sloan Digital Sky Survey Seventh Data Release classifying them into stars, galaxies and quasars. We use a machine learning classifier trained on a subset of spectroscopically confirmed objects from 14th to 22nd magnitude in the SDSS {\\it i}-band. Our catalogue consists of 2,430,625 quasars, 3,544,036 stars and 63,586 unresolved galaxies from 14th to 24th magnitude in the SDSS {\\it i}-band. Our algorithm recovers 99.96% of spectroscopically confirmed quasars and 99.51% of stars to i $\\sim$21.3 in the colour windo","authors_text":"Ajit Kembhavi, Ninan Sajeeth Philip, Rita Sinha, Sheelu Abraham, Yogesh G Wadadekar","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2010-11-09T18:57:15Z","title":"Photometric Catalogue of Quasars and Other Point Sources in the Sloan Digital Sky Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2173","kind":"arxiv","version":3},"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":"sha256:3db751de17277fdb83a6f4c2567b0d2b747a683f548f02f5fbd8d7b276349a31","target":"record","created_at":"2026-05-18T02:04:49Z","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":"a29bcf0ab1ecc762ba7df4a92f6aeee6f1a85c0cd3aa90036a5b385f966604e8","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2010-11-09T18:57:15Z","title_canon_sha256":"84b68a3ff336d67845ce7d5e3936ec1ba1829ef6e323b12433018c07dc2e4f87"},"schema_version":"1.0","source":{"id":"1011.2173","kind":"arxiv","version":3}},"canonical_sha256":"d78e26d7d12650b8aba7fbb70f7510b03668aad45bb8bb46eb152f70449659a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d78e26d7d12650b8aba7fbb70f7510b03668aad45bb8bb46eb152f70449659a4","first_computed_at":"2026-05-18T02:04:49.653488Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:49.653488Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BovOQo5IEwfyn6QemBAAWdgoRMhsGn5bpVJ+34AfEz1KvGmYyJeXwZh38T4wzk70QMcbviiCLiM5tV8zdloxDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:49.654237Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2173","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3db751de17277fdb83a6f4c2567b0d2b747a683f548f02f5fbd8d7b276349a31","sha256:7a29ad24245e7c220c57c9d1892f657ad59d3f17d2fb5b50504a2dd618ead4c0"],"state_sha256":"889aa689979f40b7a9e931c07ab585d6c145b7fcec8875e3e043b9d97633e2fc"}