{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UUVASBHKP52TPICAAMNLTDUEKC","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":"fd12f92ec0ef4d06a7bca8a040d2078b80f5e51ae8e1bd9cb1ba394034d867a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-13T04:09:12Z","title_canon_sha256":"e5356279b12adfa11fd602601f99675b50b60822e0d4efe16686f14d5082dc0e"},"schema_version":"1.0","source":{"id":"1510.03527","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.03527","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"arxiv_version","alias_value":"1510.03527v1","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.03527","created_at":"2026-05-18T01:28:45Z"},{"alias_kind":"pith_short_12","alias_value":"UUVASBHKP52T","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UUVASBHKP52TPICA","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UUVASBHK","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:a8e6b8b2ec4a17dd6f77c2cd4b3b31363cf1cb2bc0baab89f53ad2438390ac62","target":"graph","created_at":"2026-05-18T01:28:45Z","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":"A radiative-convective climate model is used to calculate stratospheric temperatures and water vapor concentrations for ozone-free atmospheres warmer than that of modern Earth. Cold, dry stratospheres are predicted at low surface temperatures, in agreement with recent 3-D calculations. However, at surface temperatures above 350 K, the stratosphere warms and water vapor becomes a major upper atmospheric constituent, allowing water to be lost by photodissociation and hydrogen escape. Hence, a 'moist greenhouse' explanation for loss of water from Venus, or some exoplanet receiving a comparable am","authors_text":"Howard Chen (BU), James F. Kasting, Ravi Kumar Kopparapu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-13T04:09:12Z","title":"Stratospheric Temperatures and Water Loss from Moist Greenhouse Atmospheres of Earth-like Planets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.03527","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:ffbbf93643ef68ac6405e5dfcead44e5ff3839c3ab5007c7b2485dab87135eb5","target":"record","created_at":"2026-05-18T01:28:45Z","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":"fd12f92ec0ef4d06a7bca8a040d2078b80f5e51ae8e1bd9cb1ba394034d867a3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-13T04:09:12Z","title_canon_sha256":"e5356279b12adfa11fd602601f99675b50b60822e0d4efe16686f14d5082dc0e"},"schema_version":"1.0","source":{"id":"1510.03527","kind":"arxiv","version":1}},"canonical_sha256":"a52a0904ea7f7537a040031ab98e8450b8aa3788f51a469b38eb9c312c270606","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a52a0904ea7f7537a040031ab98e8450b8aa3788f51a469b38eb9c312c270606","first_computed_at":"2026-05-18T01:28:45.281036Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:28:45.281036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vcLCBkmuVM844UPP89IDbpTmXisjFara06l3jhFZhGGi0Kb4d2GiSTj/9S7KPJtWv4rnyUJssUj9PrDHycAnBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:28:45.281444Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.03527","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffbbf93643ef68ac6405e5dfcead44e5ff3839c3ab5007c7b2485dab87135eb5","sha256:a8e6b8b2ec4a17dd6f77c2cd4b3b31363cf1cb2bc0baab89f53ad2438390ac62"],"state_sha256":"ffd581fa527908577225d75b40df7e33e11d794dab50050836cbd92da592f5c4"}