{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ZPZNUNHQF75SYH37OW7WE3575N","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":"b86e562abf323f1353c8cf7f9cd92b0c524ee303446b06d9aba1a163fed8afa0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-05T14:15:33Z","title_canon_sha256":"c003450af5bb6d909a90304ba1ef140cb0b7a773ff2619a70f51585571531ce4"},"schema_version":"1.0","source":{"id":"1501.00874","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00874","created_at":"2026-05-18T01:41:14Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00874v1","created_at":"2026-05-18T01:41:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00874","created_at":"2026-05-18T01:41:14Z"},{"alias_kind":"pith_short_12","alias_value":"ZPZNUNHQF75S","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZPZNUNHQF75SYH37","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZPZNUNHQ","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:b548eb3755589f5ad613ea8662c1452d2e376223d99bbf46d9dad3e833ce732a","target":"graph","created_at":"2026-05-18T01:41:14Z","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 impact of metallicity on the mass-loss rate from red giant branch (RGB) stars is studied through its effect on the parameters of horizontal branch (HB) stars. The scaling factors from Reimers (1975) and Schroder & Cuntz (2005) are determined for 56 well-studied Galactic globular clusters (GCs). The median values among clusters are, respectively, {\\eta}_R = 0.477 +/- 0.070 (+0.050/-0.062) and {\\eta}_SC = 0.172 +/- 0.024 (+0.018/-0.023) (standard deviation and systematic uncertainties, respectively). Mass-loss mechanisms on the RGB have very little metallicity dependence: over a factor of 20","authors_text":"Albert Zijlstra, Iain McDonald","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-05T14:15:33Z","title":"Mass loss on the red giant branch: the value and metallicity dependence of Reimers' {\\eta} in globular clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00874","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":"sha256:0cee13ab285715617bdc32115a26eb57433c9f41c66cdf54270e551eaf659098","target":"record","created_at":"2026-05-18T01:41:14Z","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":"b86e562abf323f1353c8cf7f9cd92b0c524ee303446b06d9aba1a163fed8afa0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-01-05T14:15:33Z","title_canon_sha256":"c003450af5bb6d909a90304ba1ef140cb0b7a773ff2619a70f51585571531ce4"},"schema_version":"1.0","source":{"id":"1501.00874","kind":"arxiv","version":1}},"canonical_sha256":"cbf2da34f02ffb2c1f7f75bf626fbfeb6810f63cf6c5361d77b2df96246cda43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbf2da34f02ffb2c1f7f75bf626fbfeb6810f63cf6c5361d77b2df96246cda43","first_computed_at":"2026-05-18T01:41:14.566232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:14.566232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C3f11S4Bd7Q8reTOR/bswvMElfH/YEHCWpduRapkSJHQ+sEx9YxSCPNT7inSX3U/utwqNmc8bVzEDvUEHYl+BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:14.567027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00874","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0cee13ab285715617bdc32115a26eb57433c9f41c66cdf54270e551eaf659098","sha256:b548eb3755589f5ad613ea8662c1452d2e376223d99bbf46d9dad3e833ce732a"],"state_sha256":"06c11b2796f1fa16f02953efbe035cb1ecba5991455679a42f64120de44c84e3"}