{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:JZTYBCM67WVBVZKDEMSSXLMB44","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":"694cf0df0d5aca2544f53607bc729c8bd8f2ba1a9ef469a83866c00155485572","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:04:29Z","title_canon_sha256":"37c4d2b0fdc9fc7a2c1a91e22b293131ad79c9c52f58f6e1b377d46c5a69a6c7"},"schema_version":"1.0","source":{"id":"1403.5566","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5566","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5566v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5566","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"JZTYBCM67WVB","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"JZTYBCM67WVBVZKD","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"JZTYBCM6","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:aba0b745ad21cbc481fd407dbfb3af173db64d75f7672cdfb60c3cf0164a9105","target":"graph","created_at":"2026-05-18T01:43:52Z","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 three-dimensional numerical hydrodynamic simulations of the turbulent, multiphase atomic interstellar medium (ISM) to construct and analyze synthetic HI 21 cm emission and absorption lines. Our analysis provides detailed tests of 21 cm observables as physical diagnostics of the atomic ISM. In particular, we construct (1) the \"observed\" spin temperature, $T_{s,obs}(v_{ch})\\equiv T_B(v_{ch})/[1-e^{-{\\tau}(v_{ch})}]$, and its optical-depth weighted mean T_s,obs; (2) the absorption-corrected \"observed\" column density, $N_{H,obs}\\propto \\int dv_{ch} T_B(v_{ch}){\\tau}(v_{ch})/[[1-e^{-{\\tau}(v","authors_text":"(2) Seoul National University), Chang-Goo Kim (1), Eve C. Ostriker (1), Woong-Tae Kim (2) ((1) Princeton University","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:04:29Z","title":"Three Dimensional Hydrodynamic Simulations of Multiphase Galactic Disks with Star Formation Feedback: II. Synthetic HI 21 cm Line Observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5566","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":"sha256:9a05a3eda3979cb6d857a4e2ef94f85ecad591adb490fc7755e9eff661a32f0b","target":"record","created_at":"2026-05-18T01:43:52Z","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":"694cf0df0d5aca2544f53607bc729c8bd8f2ba1a9ef469a83866c00155485572","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-03-21T20:04:29Z","title_canon_sha256":"37c4d2b0fdc9fc7a2c1a91e22b293131ad79c9c52f58f6e1b377d46c5a69a6c7"},"schema_version":"1.0","source":{"id":"1403.5566","kind":"arxiv","version":1}},"canonical_sha256":"4e6780899efdaa1ae54323252bad81e71841665b155184c5c3089619db70bd88","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e6780899efdaa1ae54323252bad81e71841665b155184c5c3089619db70bd88","first_computed_at":"2026-05-18T01:43:52.408400Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:52.408400Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Gmw3yxI1nmmNUjkmvgpYz5n7VeMjMMQ+s15udbXeVB/p5gpz4xW6aSyl4cD/um+5A7cPN1QZtiqrbVQW7iNDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:52.409019Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5566","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a05a3eda3979cb6d857a4e2ef94f85ecad591adb490fc7755e9eff661a32f0b","sha256:aba0b745ad21cbc481fd407dbfb3af173db64d75f7672cdfb60c3cf0164a9105"],"state_sha256":"0056105488be9ebe55188c775d72e035263a9f53d251a959530d2acb90cc0a9b"}