{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GIERGZN44ZKQPOKKJM2O4HYQT5","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":"19384aa7abbcc30f30589739a099827c09f5a6a1aa5271301fb84c0e87c9f38c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-25T12:26:00Z","title_canon_sha256":"929ace74cf38b8ce1c9bc32f5e6cc06373cc4afd567d8d2f32664a88a84435cf"},"schema_version":"1.0","source":{"id":"1305.5914","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.5914","created_at":"2026-05-18T01:49:46Z"},{"alias_kind":"arxiv_version","alias_value":"1305.5914v1","created_at":"2026-05-18T01:49:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.5914","created_at":"2026-05-18T01:49:46Z"},{"alias_kind":"pith_short_12","alias_value":"GIERGZN44ZKQ","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GIERGZN44ZKQPOKK","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GIERGZN4","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:31f491ad85e17b19fe84da8010b25e0c3d307d666934de903c6f970281250046","target":"graph","created_at":"2026-05-18T01:49:46Z","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 star-forming galaxies of the Local Group act as our laboratories for testing massive star evolutionary models. In this review, I briefly summarize what we believe we know about massive star evolution, and the connection between OB stars, Luminous Blue Variables, yellow supergiants, red supergiants, and Wolf-Rayet stars. The difficulties and recent successes in identifying these various types of massive stars in the neighboring galaxies of the Local Group will be discussed.","authors_text":"Philip Massey","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-25T12:26:00Z","title":"Massive Stars in the Galaxies of the Local Group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.5914","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":"sha256:1f4b63cf55bebb9cc7b5653babf4ef09fdb9274b22696453f91f55bca861e6c4","target":"record","created_at":"2026-05-18T01:49:46Z","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":"19384aa7abbcc30f30589739a099827c09f5a6a1aa5271301fb84c0e87c9f38c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-05-25T12:26:00Z","title_canon_sha256":"929ace74cf38b8ce1c9bc32f5e6cc06373cc4afd567d8d2f32664a88a84435cf"},"schema_version":"1.0","source":{"id":"1305.5914","kind":"arxiv","version":1}},"canonical_sha256":"32091365bce65507b94a4b34ee1f109f7a686b92f2e3899f404e28ca917a847a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32091365bce65507b94a4b34ee1f109f7a686b92f2e3899f404e28ca917a847a","first_computed_at":"2026-05-18T01:49:46.558551Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:46.558551Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UsOpKKZmX3R9usnMsZsEjSBpUvKACD+oiC5ffttyrygW1q8KZi77P9KiCVhBUwJMKWqhMGzm9+HROhU8LFF7BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:46.559305Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.5914","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f4b63cf55bebb9cc7b5653babf4ef09fdb9274b22696453f91f55bca861e6c4","sha256:31f491ad85e17b19fe84da8010b25e0c3d307d666934de903c6f970281250046"],"state_sha256":"3854c67f7360af4da20b7d7dcee9cf03d6b868462fb96269048809c7d0b33a90"}