{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:K76DSSM4UCCMTLY3MLGGDGSKZ6","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":"51d1d6ac64694d88d417c481fc33ef922428d5369d0ca98f08202b382f08e45f","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-08T20:00:40Z","title_canon_sha256":"fb1292ae2051426dd6da62ed7c1d8191550d585a95d0a3ca502f37f6011002cf"},"schema_version":"1.0","source":{"id":"1504.02097","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02097","created_at":"2026-05-18T01:21:55Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02097v2","created_at":"2026-05-18T01:21:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02097","created_at":"2026-05-18T01:21:55Z"},{"alias_kind":"pith_short_12","alias_value":"K76DSSM4UCCM","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"K76DSSM4UCCMTLY3","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"K76DSSM4","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:6cc5db4da98116ebe46e0d1ad85295ce1baf36cc7c856e76ee59b9e7fe00079c","target":"graph","created_at":"2026-05-18T01:21:55Z","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 use high-resolution cosmological zoom-in simulations from the Feedback in Realistic Environment (FIRE) project to study the galaxy mass-metallicity relations (MZR) from z=0-6. These simulations include explicit models of the multi-phase ISM, star formation, and stellar feedback. The simulations cover halo masses Mhalo=10^9-10^13 Msun and stellar mass Mstar=10^4-10^11 Msun at z=0 and have been shown to produce many observed galaxy properties from z=0-6. For the first time, our simulations agree reasonably well with the observed mass-metallicity relations at z=0-3 for a broad range of galaxy ","authors_text":"(2) Northwestern, (3) UCSD, (4) UC Berkeley), Alexander L. Muratov (3), Claude-Andre Faucher-Giguere (2), Dusan Keres (3), Eliot Quataert (4) ((1) Caltech, Nick Zolman (1), Philip F. Hopkins (1), Xiangcheng Ma (1)","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-08T20:00:40Z","title":"The Origin and Evolution of the Galaxy Mass-Metallicity Relation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02097","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":"sha256:631b8eeb826b50ea0847d90b1a9e7fc2d47de041d90fdd85aabb4e1a13d978bc","target":"record","created_at":"2026-05-18T01:21:55Z","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":"51d1d6ac64694d88d417c481fc33ef922428d5369d0ca98f08202b382f08e45f","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-04-08T20:00:40Z","title_canon_sha256":"fb1292ae2051426dd6da62ed7c1d8191550d585a95d0a3ca502f37f6011002cf"},"schema_version":"1.0","source":{"id":"1504.02097","kind":"arxiv","version":2}},"canonical_sha256":"57fc39499ca084c9af1b62cc619a4acf8185ec5605e0d9fc3207bd02d44e18a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57fc39499ca084c9af1b62cc619a4acf8185ec5605e0d9fc3207bd02d44e18a3","first_computed_at":"2026-05-18T01:21:55.609405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:21:55.609405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GAyBPk8+6d2Con9J9c/IKlG/6GLf2sVRBV096esEPauCTyKvLk4PofURgGPXmMX00F1YzhIv9fpo0KFV7pNaAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:21:55.610041Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.02097","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:631b8eeb826b50ea0847d90b1a9e7fc2d47de041d90fdd85aabb4e1a13d978bc","sha256:6cc5db4da98116ebe46e0d1ad85295ce1baf36cc7c856e76ee59b9e7fe00079c"],"state_sha256":"6a1678ecd10dc64f044308e07fe03230589ec4390b2cb45f7cff5a9753306c89"}