{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:EBWHS2G6FI7VS76WNYEGVHVXWZ","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":"bb2184726d8734f32fbafe8e756dc9c41eb7e3251130e65d5e9dc2ade8c2b1a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-12T15:45:23Z","title_canon_sha256":"e593a545e9f0a31d2c91b84c014a673bb82f401f15930ac4fd2233c4ebb97421"},"schema_version":"1.0","source":{"id":"1308.2598","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2598","created_at":"2026-05-18T01:48:16Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2598v2","created_at":"2026-05-18T01:48:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2598","created_at":"2026-05-18T01:48:16Z"},{"alias_kind":"pith_short_12","alias_value":"EBWHS2G6FI7V","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"EBWHS2G6FI7VS76W","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"EBWHS2G6","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:390df9f440656b898ff8b0aa61fb98baa53c94bde5179f1b0fe853f804601702","target":"graph","created_at":"2026-05-18T01:48:16Z","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 investigate the properties of damped Ly{\\alpha} absorption systems (DLAs) in semi-analytic models of galaxy formation, including partitioning of cold gas in galactic discs into atomic, molecular, and ionized phases with a molecular gas-based star formation recipe. We investigate two approaches for partitioning gas into these constituents: a pressure-based and a metallicity-based recipe. We identify DLAs by passing lines of sight through our simulations to compute HI column densities. We find that models with \"standard\" gas radial profiles - where the average specific angular momentum of the","authors_text":"Ari Maller, Eric Gawiser, Gergo Popping, Marcel R. Haas, Michael Berry, Rachel S. Somerville, Scott C. Trager","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-12T15:45:23Z","title":"Damped Ly{\\alpha} Absorption Systems in Semi-Analytic Models with Multiphase Gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2598","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:f9273fdea87e2823d8aead394409907dc76d84a46325c44a5586ef6ab9955e5d","target":"record","created_at":"2026-05-18T01:48:16Z","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":"bb2184726d8734f32fbafe8e756dc9c41eb7e3251130e65d5e9dc2ade8c2b1a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-12T15:45:23Z","title_canon_sha256":"e593a545e9f0a31d2c91b84c014a673bb82f401f15930ac4fd2233c4ebb97421"},"schema_version":"1.0","source":{"id":"1308.2598","kind":"arxiv","version":2}},"canonical_sha256":"206c7968de2a3f597fd66e086a9eb7b66e861a94f10ceba3ed113400fce8fccd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"206c7968de2a3f597fd66e086a9eb7b66e861a94f10ceba3ed113400fce8fccd","first_computed_at":"2026-05-18T01:48:16.300332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:16.300332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BSuZFeAAMxST27NcMTltDXagaphCpCiv0RglAj2UJV03I5+f8Z4XfWVgwZ3711mojnWH760ahLryNHLw/Q7bAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:16.300737Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.2598","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9273fdea87e2823d8aead394409907dc76d84a46325c44a5586ef6ab9955e5d","sha256:390df9f440656b898ff8b0aa61fb98baa53c94bde5179f1b0fe853f804601702"],"state_sha256":"8c2da5dae70c6805281530406ae718a0e3673c29f43d7e34669a21e1ce5bdf9d"}