{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JPS5MGKYGGAGGNJW2F3LP5VZDD","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":"16f8d56265ba91896d25f2d8614a78c3bf23961fc31c8f134b3b941e39f04e13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-12T11:40:09Z","title_canon_sha256":"9aab068abeeb55cf7f417f48c3a93ca5786e813f504966a858ef947f9d803efd"},"schema_version":"1.0","source":{"id":"1502.03611","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.03611","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"arxiv_version","alias_value":"1502.03611v3","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03611","created_at":"2026-05-18T01:41:03Z"},{"alias_kind":"pith_short_12","alias_value":"JPS5MGKYGGAG","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JPS5MGKYGGAGGNJW","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JPS5MGKY","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:98f9665be1ecfcc083ac0178ec710ba934878a1eb5d09f36f1e4ae920ab7eb6e","target":"graph","created_at":"2026-05-18T01:41:03Z","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 investigated the formation of arc-like structures in the infalling envelope around protostars, motivated by the recent Atacama Large Millimeter/Submillimeter Array (ALMA) observations of the high-density molecular cloud core, MC27/L1521F. We performed self-gravitational hydrodynamical numerical simulations with an adaptive mesh refinement code. A filamentary cloud with a 0.1~pc width fragments into cloud cores because of perturbations due to weak turbulence. The cloud core undergoes gravitational collapse to form multiple protostars, and gravitational torque from the orbiting protostars pro","authors_text":"Kazuki Tokuda, Shu-ichiro Inutsuka, Tomoaki Matsumoto, Toshikazu Onishi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-12T11:40:09Z","title":"An origin of arc structures deeply embedded in dense molecular cloud cores"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03611","kind":"arxiv","version":3},"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":"sha256:934e17d0c4efa597e3e4f2e5032603cd6de94a60970e2887fef5c118f9ba06ea","target":"record","created_at":"2026-05-18T01:41:03Z","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":"16f8d56265ba91896d25f2d8614a78c3bf23961fc31c8f134b3b941e39f04e13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-02-12T11:40:09Z","title_canon_sha256":"9aab068abeeb55cf7f417f48c3a93ca5786e813f504966a858ef947f9d803efd"},"schema_version":"1.0","source":{"id":"1502.03611","kind":"arxiv","version":3}},"canonical_sha256":"4be5d619583180633536d176b7f6b918d0c86e3cdeb07755617b38dd539ea73a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4be5d619583180633536d176b7f6b918d0c86e3cdeb07755617b38dd539ea73a","first_computed_at":"2026-05-18T01:41:03.641707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:03.641707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8SRnAdnm/EvURWUB6h7Jej4ypCxSKi8FJGsTPO5s//bnraQZO4KKIQvXnG02zwYUDo6pGs8DlO+JTBGIgF6CCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:03.642259Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.03611","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:934e17d0c4efa597e3e4f2e5032603cd6de94a60970e2887fef5c118f9ba06ea","sha256:98f9665be1ecfcc083ac0178ec710ba934878a1eb5d09f36f1e4ae920ab7eb6e"],"state_sha256":"d037a7e817c7561c32b1f12006456f5e3c0d9247692394efaced5acc1395769e"}