{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:U4O6SQIQ53ZMGFIGSYJV2TAR47","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":"3eb045fa2a902dcb72b7cddf22617099f869dd10794f49348da6c20ea1b50b8c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-25T04:35:46Z","title_canon_sha256":"15508d69b73213e3917491edee18fc91dc3fdd3c24aa376a7c30ba4127a19007"},"schema_version":"1.0","source":{"id":"1003.4798","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.4798","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"arxiv_version","alias_value":"1003.4798v1","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4798","created_at":"2026-05-18T02:08:23Z"},{"alias_kind":"pith_short_12","alias_value":"U4O6SQIQ53ZM","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"U4O6SQIQ53ZMGFIG","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"U4O6SQIQ","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:34d0b00f877a3c0f10120f97c28493ae8c1d4dedd21ea8d6d7def7555ceb432d","target":"graph","created_at":"2026-05-18T02:08:23Z","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 investigate the critical core mass and the envelope growth timescale, assuming grain-free envelopes, to examine how small cores are allowed to form gas giants in the framework of the core accretion model. This is motivated by a theoretical dilemma concerning Jupiter formation: Modelings of Jupiter's interior suggest that it contains a small core of < 10 Earth mass, while many core accretion models of Jupiter formation require a large core of > 10 Earth mass to finish its formation by the time of disk dissipation. Reduction of opacity in the accreting envelope is known to hasten gas giant fo","authors_text":"Masahiro Ikoma, Yasunori Hori","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-25T04:35:46Z","title":"Critical Core Masses for Gas Giant Formation with Grain-Free Envelopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4798","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:bc6d47374c5ba1c83469a561956e3c9cc55b15a3f6d0ec1b2f5ba08a4f2c7e26","target":"record","created_at":"2026-05-18T02:08:23Z","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":"3eb045fa2a902dcb72b7cddf22617099f869dd10794f49348da6c20ea1b50b8c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-25T04:35:46Z","title_canon_sha256":"15508d69b73213e3917491edee18fc91dc3fdd3c24aa376a7c30ba4127a19007"},"schema_version":"1.0","source":{"id":"1003.4798","kind":"arxiv","version":1}},"canonical_sha256":"a71de94110eef2c3150696135d4c11e7dcbb2ba6be2e6c985f08f28e605b6c44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a71de94110eef2c3150696135d4c11e7dcbb2ba6be2e6c985f08f28e605b6c44","first_computed_at":"2026-05-18T02:08:23.255050Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:23.255050Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uFonSrdvbYdOqT+ie4OAz1VwrHksgozt5Z6hN1bbEJS1ggn5EzWlCuHc2Pr31jKQmIO4k1xBwNAjyzQX73E+Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:23.255922Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.4798","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc6d47374c5ba1c83469a561956e3c9cc55b15a3f6d0ec1b2f5ba08a4f2c7e26","sha256:34d0b00f877a3c0f10120f97c28493ae8c1d4dedd21ea8d6d7def7555ceb432d"],"state_sha256":"5d853c8b903c0464569a97d27a820152ea93433af00249359af23a115ede7fe5"}