{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZANGADWQYN5AD2BMKHFYMQ5CF7","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":"8eb8717d083e0ccebe121c659987952edf3fddd1bc7ae1646d94ab8dc1f78ab3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-13T18:00:01Z","title_canon_sha256":"8d4c3c09e72273539fe355da013ebe9e379b8a89c51d4df09c06e86f67b8f17c"},"schema_version":"1.0","source":{"id":"1709.04466","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.04466","created_at":"2026-05-18T00:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1709.04466v1","created_at":"2026-05-18T00:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.04466","created_at":"2026-05-18T00:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"ZANGADWQYN5A","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZANGADWQYN5AD2BM","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZANGADWQ","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:c5a973f03c7b9edbcdae83fc41de33017e71bec62d5897339bb4d33d2fa08754","target":"graph","created_at":"2026-05-18T00:31:39Z","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 integrated-light spectra of 8 Young Massive Clusters (YMCs) in the metal-rich spiral galaxy NGC 5236 (M 83). The observations were taken with the X-Shooter spectrograph on the ESO Very Large Telescope. Through the use of theoretical isochrones and synthetic integrated-light (IL) spectra we derive metallicities and study the radial metallicity gradient observed through these young populations. For the inner regions of the galaxy we observe a relatively shallow metallicity gradient of $-$0.37 $\\pm$0.29 dex R$_{25}^{-1}$, agreeing with chemical evolution models with an absence of infal","authors_text":"Lex Kaper, Paul Groot, Scott Trager, S{\\o}ren Larsen, Svea Hernandez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-13T18:00:01Z","title":"Metallicities of Young Massive Clusters in NGC 5236 (M83)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.04466","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:f2510da5133c3d1fdc280d9a4cdf3517e769fe983e6d3a1ca47367307bae9228","target":"record","created_at":"2026-05-18T00:31:39Z","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":"8eb8717d083e0ccebe121c659987952edf3fddd1bc7ae1646d94ab8dc1f78ab3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-13T18:00:01Z","title_canon_sha256":"8d4c3c09e72273539fe355da013ebe9e379b8a89c51d4df09c06e86f67b8f17c"},"schema_version":"1.0","source":{"id":"1709.04466","kind":"arxiv","version":1}},"canonical_sha256":"c81a600ed0c37a01e82c51cb8643a22ff9f2ac7683b7216c16c6c1944a1445e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c81a600ed0c37a01e82c51cb8643a22ff9f2ac7683b7216c16c6c1944a1445e6","first_computed_at":"2026-05-18T00:31:39.872039Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:31:39.872039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yn3HmE491KLJh0tRuYmYiXjrH4cz+I3xMPZuSHZDK2Ic7uu5vIOz3JRB/RNryY/DMZSe+AoCxPPjdEU52PAjAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:31:39.872511Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.04466","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2510da5133c3d1fdc280d9a4cdf3517e769fe983e6d3a1ca47367307bae9228","sha256:c5a973f03c7b9edbcdae83fc41de33017e71bec62d5897339bb4d33d2fa08754"],"state_sha256":"461a34321ce3e8dd2abd5a3f55cf8809cc3c38f1581992dde7540d0bd0768769"}