{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KI6SDVJJFLNCYHETQPAFG54D2S","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":"faeaa549960a8a4113ff8a065151de7f944cc670770d4192694a21bf860dc352","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-06-15T18:00:02Z","title_canon_sha256":"c329a5089c89eea91588075c19d8880c78e09e72e0c0c7c16d44eb26935f1851"},"schema_version":"1.0","source":{"id":"2606.17143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.17143","created_at":"2026-06-19T16:10:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.17143v1","created_at":"2026-06-19T16:10:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.17143","created_at":"2026-06-19T16:10:04Z"},{"alias_kind":"pith_short_12","alias_value":"KI6SDVJJFLNC","created_at":"2026-06-19T16:10:04Z"},{"alias_kind":"pith_short_16","alias_value":"KI6SDVJJFLNCYHET","created_at":"2026-06-19T16:10:04Z"},{"alias_kind":"pith_short_8","alias_value":"KI6SDVJJ","created_at":"2026-06-19T16:10:04Z"}],"graph_snapshots":[{"event_id":"sha256:45bf9d34c12cf5547410f61d42250e8bb39473ee59982a986a4c96c5925f030c","target":"graph","created_at":"2026-06-19T16:10:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.17143/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Models that track the size evolution of exoplanets often assume a prescribed initial thermal state or a single adiabatic index to describe the planetary interior structure, the latter of which is taken to be $\\gamma \\sim1.4$ which is likely appropriate for evolved planets ($\\gtrsim$1 Gyr). Extrapolating this high $\\gamma$ to earlier ages (down to $\\sim$million years old) is problematic since, according to thermodynamics, the adiabatic index of young planets is $\\sim$1.2, which is low enough to drastically change how interior mass is distributed. We quantify the effect of varying the adiabatic ","authors_text":"Arick Collander, Eve J. Lee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-06-15T18:00:02Z","title":"The Effect of Adiabatic Index on Radius Evolution and the Mass Loss"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.17143","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":"sha256:5aabafb046c85d58a802ffa4e8b3f48e347a76d04696d57ba03d8bc9babccdeb","target":"record","created_at":"2026-06-19T16:10:04Z","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":"faeaa549960a8a4113ff8a065151de7f944cc670770d4192694a21bf860dc352","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2026-06-15T18:00:02Z","title_canon_sha256":"c329a5089c89eea91588075c19d8880c78e09e72e0c0c7c16d44eb26935f1851"},"schema_version":"1.0","source":{"id":"2606.17143","kind":"arxiv","version":1}},"canonical_sha256":"523d21d5292ada2c1c9383c0537783d4bf00156292d975de80a9cd256b191661","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"523d21d5292ada2c1c9383c0537783d4bf00156292d975de80a9cd256b191661","first_computed_at":"2026-06-19T16:10:04.268938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:10:04.268938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CY06BcGa6aEk6wU9EO7Z31/Py3WF2esWxzb4lQTVBwrywJQCBCB/VlnLxW/Nkcq0NXd3eTZM3RldpDFNxGNbCQ==","signature_status":"signed_v1","signed_at":"2026-06-19T16:10:04.269297Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.17143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5aabafb046c85d58a802ffa4e8b3f48e347a76d04696d57ba03d8bc9babccdeb","sha256:45bf9d34c12cf5547410f61d42250e8bb39473ee59982a986a4c96c5925f030c"],"state_sha256":"804f90f81e3863079a1d7de2828b7be544093503d10c2f7a8ff4ae4ff6df7237"}