{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GUKSUIE5WCYSAMYG3HL2U2667B","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":"ade4785414717237b902f75408d8f98ac7d7daa097e124865f1f5996ec96c4ff","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-09-17T15:39:43Z","title_canon_sha256":"79b63ec35c05f6a34d3af9a5f4c1415876b9d3a8dd94f49b279f8cdab692f26a"},"schema_version":"1.0","source":{"id":"1309.4353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4353","created_at":"2026-05-18T01:47:36Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4353v1","created_at":"2026-05-18T01:47:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4353","created_at":"2026-05-18T01:47:36Z"},{"alias_kind":"pith_short_12","alias_value":"GUKSUIE5WCYS","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GUKSUIE5WCYSAMYG","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GUKSUIE5","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:d89584162b0e807fce4f931849ecb0d16dbe2d6e8fea1096dc2d8bafcc4a0ee5","target":"graph","created_at":"2026-05-18T01:47:36Z","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 have performed the first detailed simulation of the horizontal branch of the Sculptor dwarf spheroidal galaxy by means of synthetic modelling techniques,taking consistently into account the star formation history and metallicity evolution as determined from the main sequence and red giant branch spectroscopic observations. The only free parameter in the whole analysis is the integrated mass loss of red giant branch stars. This is the first time that synthetic horizontal branch models, consistent with the complex star formation history of a galaxy, are calculated and matched to the observati","authors_text":"Astronomy Department, Eline Tolstoy (Kapteyn Astronomical Institute, Giuliana Fiorentino (Physics, Italy), Liverpool JMU, Maurizio Salaris (Astrophysics Research Institute, Osservatorio Astronomico di Collurania, Santi Cassisi (INAF, the Netherlands), Thomas de Boer (Institute of Astronomy, UK), University of Bologna, University of Cambridge, University of Groningen","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-09-17T15:39:43Z","title":"The Horizontal Branch of the Sculptor Dwarf galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4353","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:c6aede69e97dab375257007e981605b318e6cb0622237e9fda388a37ac04ef7a","target":"record","created_at":"2026-05-18T01:47:36Z","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":"ade4785414717237b902f75408d8f98ac7d7daa097e124865f1f5996ec96c4ff","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-09-17T15:39:43Z","title_canon_sha256":"79b63ec35c05f6a34d3af9a5f4c1415876b9d3a8dd94f49b279f8cdab692f26a"},"schema_version":"1.0","source":{"id":"1309.4353","kind":"arxiv","version":1}},"canonical_sha256":"35152a209db0b1203306d9d7aa6bdef87ffecc90c312362c647286f731b865ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"35152a209db0b1203306d9d7aa6bdef87ffecc90c312362c647286f731b865ea","first_computed_at":"2026-05-18T01:47:36.486878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:36.486878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DdhQUukmLhEzz+Hcu1qfXgiqWnHPG8Bfj51TMFy52/rRnhMyU/2vLOJc8DZYLrtymyrx7FLcSKl8NsoWqMdxDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:36.487429Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.4353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6aede69e97dab375257007e981605b318e6cb0622237e9fda388a37ac04ef7a","sha256:d89584162b0e807fce4f931849ecb0d16dbe2d6e8fea1096dc2d8bafcc4a0ee5"],"state_sha256":"2fe7ab9b86bd0fb051f66157ffc599eb77b21aef2fbcc36c08fa89d0507da91f"}