{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:U7IERQFJ5QQP7YZMNAGIDUMUGW","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":"b3013e758e7103af7c5dc5a19e58ee57e7d183f84c2f4458218967230d4e44a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-01T16:01:46Z","title_canon_sha256":"6a1a9d11f6e3865d6ce0257072e48c9b71526a0608c9850e025bd69a43f81537"},"schema_version":"1.0","source":{"id":"0904.0196","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.0196","created_at":"2026-05-18T02:14:08Z"},{"alias_kind":"arxiv_version","alias_value":"0904.0196v1","created_at":"2026-05-18T02:14:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.0196","created_at":"2026-05-18T02:14:08Z"},{"alias_kind":"pith_short_12","alias_value":"U7IERQFJ5QQP","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"U7IERQFJ5QQP7YZM","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"U7IERQFJ","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:64e9002a27b1cc525c1f16106c2de38a296de69e533704671fa617557b8bf2f8","target":"graph","created_at":"2026-05-18T02:14:08Z","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 associations and moving groups of young stars are excellent laboratories for investigating stellar formation in the solar neighborhood. Previous results have confirmed that a non-negligible fraction of old main-sequence stars is present in the lists of possible members of young stellar kinematic groups. A detailed study of the properties of these samples is needed to separate the young stars from old main-sequence stars with similar space motion, and identify the origin of these structures. We used stars possible members of the young (~ 10 - 650 Myr) moving groups from the literature. To d","authors_text":"D. Montes, G. Micela, J. Lopez-Santiago","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-01T16:01:46Z","title":"Quantifying the contamination by old main-sequence stars in young moving groups: the case of the Local Association"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.0196","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:c2ee518ef6057f30751f26e2e6b82392f4e25a418e655301582ca861b817f9b7","target":"record","created_at":"2026-05-18T02:14:08Z","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":"b3013e758e7103af7c5dc5a19e58ee57e7d183f84c2f4458218967230d4e44a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-04-01T16:01:46Z","title_canon_sha256":"6a1a9d11f6e3865d6ce0257072e48c9b71526a0608c9850e025bd69a43f81537"},"schema_version":"1.0","source":{"id":"0904.0196","kind":"arxiv","version":1}},"canonical_sha256":"a7d048c0a9ec20ffe32c680c81d19435b3f75bc5dcae1a4153b04332949a2345","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a7d048c0a9ec20ffe32c680c81d19435b3f75bc5dcae1a4153b04332949a2345","first_computed_at":"2026-05-18T02:14:08.283735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:08.283735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ExZLJh8MU0voXSth4+CnJnFL8VoCYcnpAR7RPoKu5f7ZaqGKwnVpuhNR7dbKH5VsPvL2HKK2TpKnAV2TOR/TBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:08.284231Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.0196","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2ee518ef6057f30751f26e2e6b82392f4e25a418e655301582ca861b817f9b7","sha256:64e9002a27b1cc525c1f16106c2de38a296de69e533704671fa617557b8bf2f8"],"state_sha256":"9cb6a1b30f00da03b0adb4f4d1e6042b7a8c69ff0b54b5916e035107309ec933"}