{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:EEV5BQYOVX424WDU2OPWCABZDH","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":"a22cf830bfef44e75de9858a426dfbffa497a73cdc14cdd89be85d2770e93e89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-03T23:26:02Z","title_canon_sha256":"24cc15b1e837d11b5b103c12832a2dc6ee3beaf3a48851364b9eff3abf46a672"},"schema_version":"1.0","source":{"id":"1701.00866","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.00866","created_at":"2026-05-18T00:47:00Z"},{"alias_kind":"arxiv_version","alias_value":"1701.00866v2","created_at":"2026-05-18T00:47:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.00866","created_at":"2026-05-18T00:47:00Z"},{"alias_kind":"pith_short_12","alias_value":"EEV5BQYOVX42","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"EEV5BQYOVX424WDU","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"EEV5BQYO","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:0cca0252ac6a8a9f5820bd3ba98a69c2a0e46b9dc9c0fa326fabfa4ac8ad5f0b","target":"graph","created_at":"2026-05-18T00:47:00Z","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 systematically study, in the context of the standard cold dark matter model, star-formation suppression effects of two important known physical processes---photoheating due to reionization of the intergalactic medium and gravitational shock heating due to formation of massive halos and large-scale structure---on the global evolution of star formation rate (SFR) density and the so-called cosmic downsizing phenomenon in the redshift range z=0-6. We show that the steep decline of cosmic SFR density from z~2 to z=0 can be primarily explained by gravitational shock heating in two forms: massive ","authors_text":"Jia Liu, Renyue Cen (Princeton)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-03T23:26:02Z","title":"Quenching Global Star Formation: Dominance of Gravitational Shock Heating at z<2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.00866","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":"sha256:00951a677a85fd15d7fd82ea8145fd9c7efe190e9005e492bea8eba6b1bf2b33","target":"record","created_at":"2026-05-18T00:47:00Z","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":"a22cf830bfef44e75de9858a426dfbffa497a73cdc14cdd89be85d2770e93e89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-03T23:26:02Z","title_canon_sha256":"24cc15b1e837d11b5b103c12832a2dc6ee3beaf3a48851364b9eff3abf46a672"},"schema_version":"1.0","source":{"id":"1701.00866","kind":"arxiv","version":2}},"canonical_sha256":"212bd0c30eadf9ae5874d39f61003919efcc033dd86be6b792d617a9f3699e8b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"212bd0c30eadf9ae5874d39f61003919efcc033dd86be6b792d617a9f3699e8b","first_computed_at":"2026-05-18T00:47:00.314666Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:00.314666Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j7/ugomQ2KWvqYvjgog0e/BDP9CvGXgLZv1Vfvrb9EUwhYBnpDxOO0DbXCyU1w1Poe87/dikWAl8E0CSRIH/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:00.315478Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.00866","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00951a677a85fd15d7fd82ea8145fd9c7efe190e9005e492bea8eba6b1bf2b33","sha256:0cca0252ac6a8a9f5820bd3ba98a69c2a0e46b9dc9c0fa326fabfa4ac8ad5f0b"],"state_sha256":"4e1d0d664e847d6d368fa4de7d3fc6706f610c2fe1b9721f62f56e6ce5672405"}