{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TKKJNPHA2B5DAMONHQBYXFJJ7V","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":"895afae8f13eb34941d2e4ca6b63caeed83346bf89464ea77dcaf3e5f0fab23b","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-16T18:04:56Z","title_canon_sha256":"0f86dcd76194933f6666b8f11f69d60ceccd77563737ea931a3744e7d629e325"},"schema_version":"1.0","source":{"id":"1804.05866","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.05866","created_at":"2026-05-17T23:53:44Z"},{"alias_kind":"arxiv_version","alias_value":"1804.05866v1","created_at":"2026-05-17T23:53:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.05866","created_at":"2026-05-17T23:53:44Z"},{"alias_kind":"pith_short_12","alias_value":"TKKJNPHA2B5D","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"TKKJNPHA2B5DAMON","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"TKKJNPHA","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:6d4aa5ac78e7716e57d0145dafe9e830203f121917db02ad74b8b047dee933ea","target":"graph","created_at":"2026-05-17T23:53:44Z","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":"Existing models for the dependence of the halo mass function on cosmological parameters will become a limiting source of systematic uncertainty for cluster cosmology in the near future. We present a halo mass function emulator and demonstrate improved accuracy relative to state-of-the-art analytic models. In this work, mass is defined using an overdensity criteria of 200 relative to the mean background density. Our emulator is constructed from the AEMULUS simulations, a suite of 40 N-body simulations with snapshots from z=3 to z=0. These simulations cover the flat wCDM parameter space allowed ","authors_text":"Eduardo Rozo, Jeremy L. Tinker, Joseph DeRose, Matthew R. Becker, Risa H. Wechsler, Sean McLaughlin, Thomas McClintock, Yau-Yuan Mao, Zhongxu Zhai","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-16T18:04:56Z","title":"The Aemulus Project II: Emulating the Halo Mass Function"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05866","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":"sha256:46f098ab7713cf0253e2e548a688a4fdc920f63c64122c675001c5bd1b33bf6a","target":"record","created_at":"2026-05-17T23:53:44Z","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":"895afae8f13eb34941d2e4ca6b63caeed83346bf89464ea77dcaf3e5f0fab23b","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-04-16T18:04:56Z","title_canon_sha256":"0f86dcd76194933f6666b8f11f69d60ceccd77563737ea931a3744e7d629e325"},"schema_version":"1.0","source":{"id":"1804.05866","kind":"arxiv","version":1}},"canonical_sha256":"9a9496bce0d07a3031cd3c038b9529fd556878289afd19a7abb64bd885123138","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a9496bce0d07a3031cd3c038b9529fd556878289afd19a7abb64bd885123138","first_computed_at":"2026-05-17T23:53:44.169852Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:44.169852Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YZwhhT0taNP0Gaj/hE4XkQ+kjWS/0CVV3StrPNQ2gV2BbX7yXZayXr+omJrh4Rq+ETbn6qeXnS4/Sz3LYXgpBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:44.170239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.05866","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46f098ab7713cf0253e2e548a688a4fdc920f63c64122c675001c5bd1b33bf6a","sha256:6d4aa5ac78e7716e57d0145dafe9e830203f121917db02ad74b8b047dee933ea"],"state_sha256":"53a9837058daf52915dd507798a94e872c6f6faccb207ef8de44a55ebb63779a"}