{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XZK3TJL5TNULSPYSYLQU35HL3U","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":"4cbaae9fede02338aa51efd57d17aa1e21fc31fa479b7b1e9867c614c29bd17f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-04T18:00:09Z","title_canon_sha256":"44f1b1897921106bed2b3c1ddaa6ee457779c9ffae1468390d29adbc42052ad4"},"schema_version":"1.0","source":{"id":"1708.01621","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.01621","created_at":"2026-05-18T00:21:56Z"},{"alias_kind":"arxiv_version","alias_value":"1708.01621v2","created_at":"2026-05-18T00:21:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.01621","created_at":"2026-05-18T00:21:56Z"},{"alias_kind":"pith_short_12","alias_value":"XZK3TJL5TNUL","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"XZK3TJL5TNULSPYS","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"XZK3TJL5","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:975187e666b0f62c14396aef19e6438e62f76fb7ae119e753a150e124eda1a44","target":"graph","created_at":"2026-05-18T00:21:56Z","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":"Recent observations identify a valley in the radius distribution of small exoplanets, with planets in the range $1.5-2.0\\,{\\rm R}_{\\oplus}$ significantly less common than somewhat smaller or larger planets. This valley may suggest a bimodal population of rocky planets that are either engulfed by massive gas envelopes that significantly enlarge their radius, or do not have detectable atmospheres at all. One explanation of such a bimodal distribution is atmospheric erosion by high-energy stellar photons. We investigate an alternative mechanism: the luminosity of the cooling rocky core, which can","authors_text":"Hilke E. Schlichting, Re'em Sari, Sivan Ginzburg","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-04T18:00:09Z","title":"Core-powered mass loss and the radius distribution of small exoplanets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.01621","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:e40494604f03e2c23f2833c363681bab015ef70b21335a040a96ef7b9e80137c","target":"record","created_at":"2026-05-18T00:21:56Z","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":"4cbaae9fede02338aa51efd57d17aa1e21fc31fa479b7b1e9867c614c29bd17f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-08-04T18:00:09Z","title_canon_sha256":"44f1b1897921106bed2b3c1ddaa6ee457779c9ffae1468390d29adbc42052ad4"},"schema_version":"1.0","source":{"id":"1708.01621","kind":"arxiv","version":2}},"canonical_sha256":"be55b9a57d9b68b93f12c2e14df4ebdd1bb6e1ce12607d13d43365312e2365d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be55b9a57d9b68b93f12c2e14df4ebdd1bb6e1ce12607d13d43365312e2365d9","first_computed_at":"2026-05-18T00:21:56.916805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:56.916805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R7vDV0+wxLH7E+mrYV2U8K/oMPqM4mIEMwC2jfJkiqSBZSW5iAUi7PHiSlCzZ9UXbiUGUgYsU2RjOD9rL1hFDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:56.917464Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.01621","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e40494604f03e2c23f2833c363681bab015ef70b21335a040a96ef7b9e80137c","sha256:975187e666b0f62c14396aef19e6438e62f76fb7ae119e753a150e124eda1a44"],"state_sha256":"8ac30e848a12257f1f33618a02c23d09e1e5e01658767ddd88b9233a83949b1d"}