{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TEYS55GMXOFIE4GFED55XVL6IE","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":"6d496ef870f478222065bc04aea38f63b4fe979e37d08741d0f8590c21fbd3d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-05T08:38:45Z","title_canon_sha256":"c0598fcc247553b3ae4383ca5be571a29f040b62708fc8ba98e6f05f92dee258"},"schema_version":"1.0","source":{"id":"1207.1193","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1193","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1193v2","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1193","created_at":"2026-05-18T03:37:20Z"},{"alias_kind":"pith_short_12","alias_value":"TEYS55GMXOFI","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TEYS55GMXOFIE4GF","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TEYS55GM","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:fc3f50604bdc93fb952510f67c4eb5f0ba73965b034531c35eefd4035994ad01","target":"graph","created_at":"2026-05-18T03:37:20Z","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 the results of a search for red QSOs using a selection based on optical imaging from SDSS and near-infrared imaging from UKIDSS. For a sample of 58 candidates 46 (79%) are confirmed to be QSOs. The QSOs are predominantly dust-reddened except a handul at redshifts z>3.5. The dust is most likely located in the QSO host galaxies. 4 (7%) of the candidates turned out to be late-type stars, and another 4 (7%) are compact galaxies. The remaining 4 objects we could not identify. In terms of their optical spectra the QSOs are similar to the QSOs selected in the FIRST-2MASS red Quasar survey ","authors_text":"B. Venemans, C. Ledoux, J.-K. Krogager, J. P. U. Fynbo, M. Vestergaard, P. Moller, P. Noterdaeme, S. Geier","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-05T08:38:45Z","title":"Optical/near-infrared selection of red QSOs: Evidence for steep extinction curves towards galactic centers?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1193","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":"sha256:577e86ef7a4cdc619a3edae64dea9a89140acab9b4d745496cd3a86862ad8faa","target":"record","created_at":"2026-05-18T03:37:20Z","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":"6d496ef870f478222065bc04aea38f63b4fe979e37d08741d0f8590c21fbd3d1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-05T08:38:45Z","title_canon_sha256":"c0598fcc247553b3ae4383ca5be571a29f040b62708fc8ba98e6f05f92dee258"},"schema_version":"1.0","source":{"id":"1207.1193","kind":"arxiv","version":2}},"canonical_sha256":"99312ef4ccbb8a8270c520fbdbd57e412ec02ad4cac28b1142a922ec929ee0e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99312ef4ccbb8a8270c520fbdbd57e412ec02ad4cac28b1142a922ec929ee0e6","first_computed_at":"2026-05-18T03:37:20.283099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:37:20.283099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6yejro+l41zoWOW2sti3mPVpgcxnIva5xYKUbNQPzy2BG+9+ogxtful99QDRcO+hvW5VdiJfB6RWnonhc8WPBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:37:20.283734Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1193","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:577e86ef7a4cdc619a3edae64dea9a89140acab9b4d745496cd3a86862ad8faa","sha256:fc3f50604bdc93fb952510f67c4eb5f0ba73965b034531c35eefd4035994ad01"],"state_sha256":"82affd3dbde884a1f75232e13e27e4735779169897a7fb6a37269dd139eecba1"}