{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:B6DWOCDGP6ANIF674HMQHZIPTO","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":"a412c6b441c4fe01c697d26189646c9c7881f8953a813782e7bc29fff6eaba05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-05-15T16:34:37Z","title_canon_sha256":"2da1de87d0aafbb27cb61c1f9c196da21c60185374478602e939c52e8aad8dc7"},"schema_version":"1.0","source":{"id":"0905.2580","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.2580","created_at":"2026-07-04T15:46:29Z"},{"alias_kind":"arxiv_version","alias_value":"0905.2580v1","created_at":"2026-07-04T15:46:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.2580","created_at":"2026-07-04T15:46:29Z"},{"alias_kind":"pith_short_12","alias_value":"B6DWOCDGP6AN","created_at":"2026-07-04T15:46:29Z"},{"alias_kind":"pith_short_16","alias_value":"B6DWOCDGP6ANIF67","created_at":"2026-07-04T15:46:29Z"},{"alias_kind":"pith_short_8","alias_value":"B6DWOCDG","created_at":"2026-07-04T15:46:29Z"}],"graph_snapshots":[{"event_id":"sha256:6e171d853fb26a3fa82d64d0d38ec52bd147896ae209e03e1d318775c02749b2","target":"graph","created_at":"2026-07-04T15:46:29Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0905.2580/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the stellar content of the starburst dwarf galaxy IC10 using accurate and deep optical data collected with the Advanced Camera for Surveys and with the Wide Field Planetary Camera 2 on board the Hubble Space Telescope. The comparison between theory and observations indicates a clear change in age distribution when moving from the center toward the external regions. Moreover, empirical calibrators and evolutionary predictions suggest the presence of a spread in heavy element abundance of the order of one-half dex. The comparison between old and intermediate-age core He-burning mo","authors_text":"A. Pietrinferni, A. R. Walker, C. E. Corsi, E. Sabbi, F. Caputo, G. Bono, G. Iannicola, I. Drozdovsky, I. Ferraro, L. Pulone, M. Castellani, M. Monelli, M. Nonino, M. Romaniello, N. Sanna, P. B. Stetson, P. G. Prada Moroni, R. Buonanno, S. Cassisi, S. Degl'Innocenti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-05-15T16:34:37Z","title":"On the stellar content of the starburst galaxy IC10"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.2580","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":"sha256:608b2512ce8091d3de3406a9512578cc1b77ac25be1ade586e1addf11a7d36ec","target":"record","created_at":"2026-07-04T15:46:29Z","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":"a412c6b441c4fe01c697d26189646c9c7881f8953a813782e7bc29fff6eaba05","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-05-15T16:34:37Z","title_canon_sha256":"2da1de87d0aafbb27cb61c1f9c196da21c60185374478602e939c52e8aad8dc7"},"schema_version":"1.0","source":{"id":"0905.2580","kind":"arxiv","version":1}},"canonical_sha256":"0f876708667f80d417dfe1d903e50f9ba3ccb724ce883a26022981382a2f4633","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f876708667f80d417dfe1d903e50f9ba3ccb724ce883a26022981382a2f4633","first_computed_at":"2026-07-04T15:46:29.305583Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:46:29.305583Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7bgxZCfgZOHUV4CXkQp5qpiwMSa2y5wZs535P/XdntgafW5SAaDCV525HZSCOTTKPw+qmaC0fLuxTxK+Hu59BA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:46:29.306006Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.2580","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:608b2512ce8091d3de3406a9512578cc1b77ac25be1ade586e1addf11a7d36ec","sha256:6e171d853fb26a3fa82d64d0d38ec52bd147896ae209e03e1d318775c02749b2"],"state_sha256":"236fde1c8ec7fe8caa62eece9ee2f9ac303bf6635de92dad6346189626294a0b"}