{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FLVPZEGZ5JNNOGYZDLNTD3VKCZ","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":"2ce6c93528b273aa6794105ce1a6006b527ea3bdf68231b171f19564c466403b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-10-08T15:42:24Z","title_canon_sha256":"226f144622c3abe8ef77ae4e263249ac40d97d76f0aa719877655589de11ee36"},"schema_version":"1.0","source":{"id":"1310.2178","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2178","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2178v2","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2178","created_at":"2026-05-18T01:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"FLVPZEGZ5JNN","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FLVPZEGZ5JNNOGYZ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FLVPZEGZ","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:0f5f0b00bf0d52de11da20453d8c758b23a750458c806008fe06b02e8bc616ea","target":"graph","created_at":"2026-05-18T01:47:13Z","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 UBVRI photometry of stars in the field of the intermediate-age open cluster NGC 559. By determining the stellar membership probabilities derived through a photometric and kinematic study of the cluster, we identify the 22 most probable cluster members. These are used to obtain robust cluster parameters. The mean proper motion of the cluster is \\mu_x = -3.29+/-0.35, \\mu_y = -1.24+/-0.28 mas/yr. The radial distribution of the stellar surface density gives a cluster radius of 4'.5+/-0'.2 (3.2+/-0.2 pc). By fitting solar metallicity stellar isochrones to the colour-colour and colour-mag","authors_text":"Brijesh Kumar (ARIES), L. A. Balona (SAAO), Santosh Joshi (ARIES), Yogesh C. Joshi (ARIES)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-10-08T15:42:24Z","title":"A photometric study of the Open Cluster II: Stellar population and dynamical evolution in NGC 559"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2178","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:da5b22fd7450c07da2bdcb8e489e35d48ff9d126ae47c1b2510b7ad7459ce6eb","target":"record","created_at":"2026-05-18T01:47:13Z","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":"2ce6c93528b273aa6794105ce1a6006b527ea3bdf68231b171f19564c466403b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-10-08T15:42:24Z","title_canon_sha256":"226f144622c3abe8ef77ae4e263249ac40d97d76f0aa719877655589de11ee36"},"schema_version":"1.0","source":{"id":"1310.2178","kind":"arxiv","version":2}},"canonical_sha256":"2aeafc90d9ea5ad71b191adb31eeaa1674d8374fc813dec7674f3b7d4e0f2583","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2aeafc90d9ea5ad71b191adb31eeaa1674d8374fc813dec7674f3b7d4e0f2583","first_computed_at":"2026-05-18T01:47:13.654784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:13.654784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rYt/q1PzV0fPN5r6kh5+FgQqIV/z8DhrUIaOi7OOhfwRM0C8Y7RP/vHggWEMigQ0btoMIMpktm1iR2yt8FQwAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:13.655504Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.2178","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da5b22fd7450c07da2bdcb8e489e35d48ff9d126ae47c1b2510b7ad7459ce6eb","sha256:0f5f0b00bf0d52de11da20453d8c758b23a750458c806008fe06b02e8bc616ea"],"state_sha256":"60435a27c9582b4990aa2d34dac1318f383240762dfc4fef419b431caef1373b"}