{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:F74MLC2GY5C3LZ44UI2Q2M5FW4","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":"404c4cff363290ac4ab30177aad3296f0bf474f4bf71c2ac478ccaf15d7b41b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-29T16:48:57Z","title_canon_sha256":"b01e9c73aee3b239419149002e3887d316c800747e9fbdc2b483d8e49f1b3f2e"},"schema_version":"1.0","source":{"id":"1010.6270","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.6270","created_at":"2026-05-18T04:38:07Z"},{"alias_kind":"arxiv_version","alias_value":"1010.6270v1","created_at":"2026-05-18T04:38:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.6270","created_at":"2026-05-18T04:38:07Z"},{"alias_kind":"pith_short_12","alias_value":"F74MLC2GY5C3","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"F74MLC2GY5C3LZ44","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"F74MLC2G","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:0747db51177451e256d502d143469e8f82acf5273a3441bcaa162266b59e5da4","target":"graph","created_at":"2026-05-18T04:38:07Z","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 initial results from a long-baseline radial velocity survey for massive binaries in the cluster Westerlund 1. Four systems are examined: the dust-producing WC binary W239, the double-lined eclipsing binary W13, and the single-lined B0 supergiants W43a and W3003. Finally, the evolutionary implications for the population of massive stars in Westerlund 1 are discussed.","authors_text":"B.W. Ritchie, I. Negueruela, J.S. Clark","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-29T16:48:57Z","title":"The massive binary population of the starburst cluster Westerlund 1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.6270","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":"sha256:885695794837da78f0e5a1a9f6c46089a207c98697e53902fb9d41aa8de9283e","target":"record","created_at":"2026-05-18T04:38:07Z","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":"404c4cff363290ac4ab30177aad3296f0bf474f4bf71c2ac478ccaf15d7b41b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-29T16:48:57Z","title_canon_sha256":"b01e9c73aee3b239419149002e3887d316c800747e9fbdc2b483d8e49f1b3f2e"},"schema_version":"1.0","source":{"id":"1010.6270","kind":"arxiv","version":1}},"canonical_sha256":"2ff8c58b46c745b5e79ca2350d33a5b704f6155a86c890f647aa264dfe9830c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ff8c58b46c745b5e79ca2350d33a5b704f6155a86c890f647aa264dfe9830c9","first_computed_at":"2026-05-18T04:38:07.185536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:07.185536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tHL77T5G7MzgJ3hsKLrLMTVfQ7tQXTAZZ/UxmCpzm/rRD0xcfJr2K6pi41EueSJcqx6ZjeMJ9W4Kc4eW5v9rAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:07.186025Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.6270","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:885695794837da78f0e5a1a9f6c46089a207c98697e53902fb9d41aa8de9283e","sha256:0747db51177451e256d502d143469e8f82acf5273a3441bcaa162266b59e5da4"],"state_sha256":"cf9ab4f4b3082052113607350897f479add74487312be965617dfac58b4c11b9"}