{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UFTDIPMJQRW66RIIRMPCV2XC6L","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":"8b5eab56833f951d01e6626393eb47761ed3453479f480f9cbfff55aee1ab835","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-06-23T05:28:50Z","title_canon_sha256":"91a8573f9861515aab2c91a731ebdfbb73c8241e55e9663a17efb36dd7359f61"},"schema_version":"1.0","source":{"id":"1506.06867","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.06867","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"arxiv_version","alias_value":"1506.06867v2","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.06867","created_at":"2026-05-18T01:33:42Z"},{"alias_kind":"pith_short_12","alias_value":"UFTDIPMJQRW6","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UFTDIPMJQRW66RII","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UFTDIPMJ","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:9e042d6a6f4a896c353c95ac698e8519c87ef9aa87447350a9b4b70b37c2c761","target":"graph","created_at":"2026-05-18T01:33:42Z","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":"Planets with sizes between those of Earth and Neptune divide into two populations: purely rocky bodies whose atmospheres contribute negligibly to their sizes, and larger gas-enveloped planets possessing voluminous and optically thick atmospheres. We show that whether a planet forms rocky or gas-enveloped depends on the solid surface density of its parent disk. Assembly times for rocky cores are sensitive to disk solid surface density. Lower surface densities spawn smaller planetary embryos; to assemble a core of given mass, smaller embryos require more mergers between bodies farther apart and ","authors_text":"Eugene Chiang, Eve J. Lee, Rebekah I. Dawson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-06-23T05:28:50Z","title":"A Metallicity Recipe for Rocky Planets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.06867","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":"sha256:1afd097d453ac92d814a12d3d989086eb5dcb393c898bb97618dfadc24081ec3","target":"record","created_at":"2026-05-18T01:33:42Z","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":"8b5eab56833f951d01e6626393eb47761ed3453479f480f9cbfff55aee1ab835","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-06-23T05:28:50Z","title_canon_sha256":"91a8573f9861515aab2c91a731ebdfbb73c8241e55e9663a17efb36dd7359f61"},"schema_version":"1.0","source":{"id":"1506.06867","kind":"arxiv","version":2}},"canonical_sha256":"a166343d89846def45088b1e2aeae2f2c2795e2d85fc7c15cf5aad1c6692b1af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a166343d89846def45088b1e2aeae2f2c2795e2d85fc7c15cf5aad1c6692b1af","first_computed_at":"2026-05-18T01:33:42.795961Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:42.795961Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U2HU/UvjO68+HRq1wcUSlhCjBgAm7gmYksum8ecA4xP6P9gWeesjq6ln1AqQpHTlId5Y++7XUqN2eHY4k+44Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:42.796407Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.06867","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1afd097d453ac92d814a12d3d989086eb5dcb393c898bb97618dfadc24081ec3","sha256:9e042d6a6f4a896c353c95ac698e8519c87ef9aa87447350a9b4b70b37c2c761"],"state_sha256":"8c3e7fe8feefc74153ee8802c12645de8aa4e53d181d5b44e688873b93937aa7"}