{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:CGCLHIELY3QB6HDJ3UYRE53C6X","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":"3596807cace5f776ad575b308052598ec16d51d3231e30a530ea76654e00ce92","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-22T18:00:05Z","title_canon_sha256":"916b632fcf0023f55c6e72fe638b3327840bc491803dde94269471a0a3e45fae"},"schema_version":"1.0","source":{"id":"2407.15938","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.15938","created_at":"2026-07-05T09:59:17Z"},{"alias_kind":"arxiv_version","alias_value":"2407.15938v2","created_at":"2026-07-05T09:59:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.15938","created_at":"2026-07-05T09:59:17Z"},{"alias_kind":"pith_short_12","alias_value":"CGCLHIELY3QB","created_at":"2026-07-05T09:59:17Z"},{"alias_kind":"pith_short_16","alias_value":"CGCLHIELY3QB6HDJ","created_at":"2026-07-05T09:59:17Z"},{"alias_kind":"pith_short_8","alias_value":"CGCLHIEL","created_at":"2026-07-05T09:59:17Z"}],"graph_snapshots":[{"event_id":"sha256:fd7a428a2fdfee2754c085e823ee25fd9e6dc6ce1a15a458fe1083a22c04bf1f","target":"graph","created_at":"2026-07-05T09:59:17Z","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/2407.15938/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the stellar properties of a sample of simulated ultra-diffuse galaxies (UDGs) with stellar mass $\\rm{M_\\star=10^{7.5} - 10^{9} ~ M_{\\odot}}$, selected from the TNG50 simulation, where UDGs form mainly in high-spin dwarf-mass halos. We divide our sample into star-forming and quenched UDGs, finding good agreement with the stellar assembly history measured in observations. Star-forming UDGs and quenched UDGs with $\\rm{M_\\star \\geq 10^8 ~ M_\\odot}$ in our sample are particularly inefficient at forming stars, having $2$ - $10$ times less stellar mass than non-UDGs for the same virial mass ","authors_text":"Federico Marinacci, Jos\\'e A. Benavides, Lars Hernquist, Laura V. Sales, Mario. G. Abadi, Mark Vogelsberger","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-22T18:00:05Z","title":"Large dark matter content and steep metallicity profile predicted for Ultra-Diffuse Galaxies formed in high-spin halos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.15938","kind":"arxiv","version":2},"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:d93a5c552fc78c9101e1b95a33074b2f2fd339a791a172cb338e41b7bf0064f4","target":"record","created_at":"2026-07-05T09:59:17Z","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":"3596807cace5f776ad575b308052598ec16d51d3231e30a530ea76654e00ce92","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-07-22T18:00:05Z","title_canon_sha256":"916b632fcf0023f55c6e72fe638b3327840bc491803dde94269471a0a3e45fae"},"schema_version":"1.0","source":{"id":"2407.15938","kind":"arxiv","version":2}},"canonical_sha256":"1184b3a08bc6e01f1c69dd31127762f5f27d3e0bde6af2736dc16679af03b318","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1184b3a08bc6e01f1c69dd31127762f5f27d3e0bde6af2736dc16679af03b318","first_computed_at":"2026-07-05T09:59:17.679402Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:59:17.679402Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/f+sapOUBQIHNQQNAnIPJ2vzUl3iump49uK9ozI9S6cLcOxKun+NhCmyKeKr5vbPEWtydqzofaM3qrdUiuRsCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T09:59:17.679880Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.15938","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d93a5c552fc78c9101e1b95a33074b2f2fd339a791a172cb338e41b7bf0064f4","sha256:fd7a428a2fdfee2754c085e823ee25fd9e6dc6ce1a15a458fe1083a22c04bf1f"],"state_sha256":"31aec1f1b7f0c68481884d72bdcd42bf929c6a718e8d56bb0b44c02047c4aa16"}