{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ZTE66XKVEGS6BSQXGW6PE7HAIO","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":"128fd699f90495bb9a3b4690a041f132dfbb31afd186c6adee56961291095ae3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-06T16:35:10Z","title_canon_sha256":"e143aff82d328cfaf426d9a4e1de697d61a1f895bbee47bffa8e45967ac940bf"},"schema_version":"1.0","source":{"id":"1003.1400","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.1400","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"arxiv_version","alias_value":"1003.1400v1","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.1400","created_at":"2026-05-18T02:08:45Z"},{"alias_kind":"pith_short_12","alias_value":"ZTE66XKVEGS6","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"ZTE66XKVEGS6BSQX","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"ZTE66XKV","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:18482cc6dd9c30cf180343cd53d89a6601c0e3988e59b981b4cea1d8e1f3b11f","target":"graph","created_at":"2026-05-18T02:08:45Z","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":"Motivated by a considerable scatter in the observationally inferred lifetimes of the embedded  phase of star formation, we study the duration of the Class 0 and Class I phases in upper-mass brown dwarfs and low-mass stars using numerical hydrodynamics simulations of the gravitational collapse of a large sample of cloud cores. We resolve the formation of a star/disk/envelope system and extend our numerical simulations to the late accretion phase when the envelope is nearly totally depleted of matter. We adopted a classification scheme of Andre et al. and calculate the lifetimes of the Class 0 a","authors_text":"Canada, Eduard Vorobyov (The Institute for Computational Astrophysics, Halifax, Rostov-on-Don, Russia), Saint Mary's University, South Federal University, The Institute of Physics","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-06T16:35:10Z","title":"Lifetime of the embedded phase of low-mass star formation and the envelope depletion rates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.1400","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":"sha256:4da1f5f0bb5db266671830d686520323069cd16d920b42e133afb257e52f8325","target":"record","created_at":"2026-05-18T02:08:45Z","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":"128fd699f90495bb9a3b4690a041f132dfbb31afd186c6adee56961291095ae3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-03-06T16:35:10Z","title_canon_sha256":"e143aff82d328cfaf426d9a4e1de697d61a1f895bbee47bffa8e45967ac940bf"},"schema_version":"1.0","source":{"id":"1003.1400","kind":"arxiv","version":1}},"canonical_sha256":"ccc9ef5d5521a5e0ca1735bcf27ce043afc783dc0b099fc0f11d28d96b4cd61d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ccc9ef5d5521a5e0ca1735bcf27ce043afc783dc0b099fc0f11d28d96b4cd61d","first_computed_at":"2026-05-18T02:08:45.389290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:45.389290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"osFvI0ZJRrR+rFEMx7oWVN/L0tMU6Z9WzTgayMDwqZ7Vi5KHYpMRueYstE8jTUDJRXClolCX5BMVbV/lmL6RAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:45.390052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.1400","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4da1f5f0bb5db266671830d686520323069cd16d920b42e133afb257e52f8325","sha256:18482cc6dd9c30cf180343cd53d89a6601c0e3988e59b981b4cea1d8e1f3b11f"],"state_sha256":"b515c2e4a1727783c5f126e7dfb059b2ce08cb2eaed64fd042cef44a46e2a50e"}