{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CB24MVPTGNH4XBCUVBVI4UB257","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":"97d21041bb2c5b37fb986793f4d4d44ec7d5ba7e00df3193306eb28ae69ad5d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-19T20:39:20Z","title_canon_sha256":"3c49ba9a68aee67d5498dda7c418d35247e4a7a4f311c24935462b281b9b31d2"},"schema_version":"1.0","source":{"id":"1804.07372","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07372","created_at":"2026-05-17T23:43:06Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07372v2","created_at":"2026-05-17T23:43:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07372","created_at":"2026-05-17T23:43:06Z"},{"alias_kind":"pith_short_12","alias_value":"CB24MVPTGNH4","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CB24MVPTGNH4XBCU","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CB24MVPT","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:5893cf8ec45b3682f7e9813bf2d4e89f40ec10633ece6fc345388fd2e448b022","target":"graph","created_at":"2026-05-17T23:43:06Z","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 utilize GIZMO, coupled with newly developed sub-grid models for Population~III (Pop~III) and Population~II (Pop~II), to study the legacy of star formation in the pre-reionization Universe. We find that the Pop~II star formation rate density (SFRD), produced in our simulation ($\\sim 10^{-2}\\ \\Msun{\\rm yr^{-1}\\, Mpc^{-3}}$ at $z\\simeq 10$), matches the total SFRD inferred from observations within a factor of $<2$ at $7\\lesssim z \\lesssim10$. The Pop~III SFRD, however, reaches a plateau at $\\sim10^{-3}\\ \\Msun{\\rm yr^{-1}\\, Mpc^{-3}}$ by $z\\approx10$, remaining largely unaffected by the presenc","authors_text":"Jason Jaacks, Steven L. Finkelstein, Volker Bromm","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-19T20:39:20Z","title":"Legacy of star formation in the pre-reionization universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07372","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":"sha256:881e93994f202049d1d831cd649abc95f3f709f3a4a9b71bd649878006aedff1","target":"record","created_at":"2026-05-17T23:43:06Z","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":"97d21041bb2c5b37fb986793f4d4d44ec7d5ba7e00df3193306eb28ae69ad5d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-04-19T20:39:20Z","title_canon_sha256":"3c49ba9a68aee67d5498dda7c418d35247e4a7a4f311c24935462b281b9b31d2"},"schema_version":"1.0","source":{"id":"1804.07372","kind":"arxiv","version":2}},"canonical_sha256":"1075c655f3334fcb8454a86a8e503aefc2e0fa4f46b9ae09e1b5766833cedd30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1075c655f3334fcb8454a86a8e503aefc2e0fa4f46b9ae09e1b5766833cedd30","first_computed_at":"2026-05-17T23:43:06.946368Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:06.946368Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"coBL9QzdFeJzLBGWBghJmxugIBpdqF1O1qA/FObYt/72QhtcvKmKfM0MpIyGUnZFMC9UUr0IjJoK65NxYF6EBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:06.947046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.07372","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:881e93994f202049d1d831cd649abc95f3f709f3a4a9b71bd649878006aedff1","sha256:5893cf8ec45b3682f7e9813bf2d4e89f40ec10633ece6fc345388fd2e448b022"],"state_sha256":"d76f96f4d9997a223676f5231b2e7e9704e761f842113405b0c5edec26a14493"}