{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:M7U2QEQW7OXVT7UDSE7NHE5R3T","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":"aff30a638655b44d6365b9937e8558e6a43decf69222304db9a26469326b5f18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-17T06:35:04Z","title_canon_sha256":"fd0e142aefc51f8ad75fbc6160e335229a27f0db2f8a1c2ee32c292de94e94cb"},"schema_version":"1.0","source":{"id":"0911.3216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3216","created_at":"2026-05-18T01:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3216v1","created_at":"2026-05-18T01:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3216","created_at":"2026-05-18T01:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"M7U2QEQW7OXV","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"M7U2QEQW7OXVT7UD","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"M7U2QEQW","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:c7c0799c688c80f1472b5538357e4db6d8eb86377fed760969fb008b740ca95d","target":"graph","created_at":"2026-05-18T01:06:23Z","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":"A new list of physical characteristics of 3914 astrometric radio sources, including all 717 ICRF-Ext.2 sources, observed during IVS and NRAO VCS sessions have been compiled. The list includes source type, redshift and visual magnitude (if available). In case of doubt detailed comment is provided. The list of sources with their positions was taken from the Goddard VLBI astrometric catalog with addition of two ICRF-Ext.2 sources. At this stage the source characteristics were mainly taken from the NASA/IPAC Extragalactic Database (NED). 667 sources from our list are included into the IERS list. C","authors_text":"Oleg Titov, Zinovy Malkin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-17T06:35:04Z","title":"Optical Characteristics of the Astrometric Radio Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3216","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":"sha256:2c7a8436c8108e89ed6fb6f05620a9049109e5f627b9152880ec8e039dbd02c7","target":"record","created_at":"2026-05-18T01:06:23Z","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":"aff30a638655b44d6365b9937e8558e6a43decf69222304db9a26469326b5f18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-17T06:35:04Z","title_canon_sha256":"fd0e142aefc51f8ad75fbc6160e335229a27f0db2f8a1c2ee32c292de94e94cb"},"schema_version":"1.0","source":{"id":"0911.3216","kind":"arxiv","version":1}},"canonical_sha256":"67e9a81216fbaf59fe83913ed393b1dce60b8b7e490022b28459a93ee981f98a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"67e9a81216fbaf59fe83913ed393b1dce60b8b7e490022b28459a93ee981f98a","first_computed_at":"2026-05-18T01:06:23.358734Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:23.358734Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sv1NpByLPgyViTioTQC9xl+6BhPhQ7wSINaDSsMT5Vg71i1wt6WrYxEygtKcw4pWM1enRJ3AMj9Rrz516KglDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:23.359395Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2c7a8436c8108e89ed6fb6f05620a9049109e5f627b9152880ec8e039dbd02c7","sha256:c7c0799c688c80f1472b5538357e4db6d8eb86377fed760969fb008b740ca95d"],"state_sha256":"1ef82e058d4b83f9fb89b98445bb42b2f161ad4e982414ebfb036bf9a684cde4"}