{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:SZ3SQCQLHW6CFJ5VCEAV6PTW6C","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":"9197bad27a0edbcaf20831581acabfee0c788d903b2541d86a0f8fa2a10194b0","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-05-25T21:23:10Z","title_canon_sha256":"4a216836a43a0a8a6f6436e0cbce2e19c8ed040dbb7a9528b0ead5f8f9cf9bec"},"schema_version":"1.0","source":{"id":"astro-ph/0405507","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0405507","created_at":"2026-07-04T15:20:14Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0405507v1","created_at":"2026-07-04T15:20:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0405507","created_at":"2026-07-04T15:20:14Z"},{"alias_kind":"pith_short_12","alias_value":"SZ3SQCQLHW6C","created_at":"2026-07-04T15:20:14Z"},{"alias_kind":"pith_short_16","alias_value":"SZ3SQCQLHW6CFJ5V","created_at":"2026-07-04T15:20:14Z"},{"alias_kind":"pith_short_8","alias_value":"SZ3SQCQL","created_at":"2026-07-04T15:20:14Z"}],"graph_snapshots":[{"event_id":"sha256:0b823d72b101fde95669d48f938dc45db12b2f0ee7bb986a176af9f74fc18e1b","target":"graph","created_at":"2026-07-04T15:20:14Z","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/astro-ph/0405507/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study quasi-static atmospheres of accreting protoplanetary cores for different opacity behaviors and realistic planetesimal accretion rates in various parts of protoplanetary nebula. Atmospheres segregate into those having outer convective zone which smoothly merges with the nebular gas, and those having almost isothermal outer radiative region decoupling atmospheric interior from the nebula. Specific type of atmosphere depends only on the relations between the Bondi radius of the core, photon mean free path in the nebular gas, and the luminosity radius (roughly the size of the sphere which","authors_text":"Roman Rafikov (IAS)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-05-25T21:23:10Z","title":"Atmospheres of protoplanetary cores: critical mass for nucleated instability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0405507","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:bc910c381b158b2ba55c3dce6ef5867cbe9470b0e77b54e50d1ba99f96a97f1d","target":"record","created_at":"2026-07-04T15:20:14Z","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":"9197bad27a0edbcaf20831581acabfee0c788d903b2541d86a0f8fa2a10194b0","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-05-25T21:23:10Z","title_canon_sha256":"4a216836a43a0a8a6f6436e0cbce2e19c8ed040dbb7a9528b0ead5f8f9cf9bec"},"schema_version":"1.0","source":{"id":"astro-ph/0405507","kind":"arxiv","version":1}},"canonical_sha256":"9677280a0b3dbc22a7b511015f3e76f0a2a214a5ac4abf5340e395c3a5c471ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9677280a0b3dbc22a7b511015f3e76f0a2a214a5ac4abf5340e395c3a5c471ea","first_computed_at":"2026-07-04T15:20:14.022289Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:20:14.022289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZGMDA2JxQckPAgn5AoHPNEMtp7rmX+Z2EE+Ns9ihlAsMCyPAgpuV3Zfh5YZtrl00KWvHxx1+l9JeT48Ff019Aw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:20:14.022713Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0405507","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc910c381b158b2ba55c3dce6ef5867cbe9470b0e77b54e50d1ba99f96a97f1d","sha256:0b823d72b101fde95669d48f938dc45db12b2f0ee7bb986a176af9f74fc18e1b"],"state_sha256":"565459ca3c98a5bccfc23638b9ef293650d77382baa8dd02fc03eded668d86c3"}