{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:HZSW3RQLA54VTCZMX3OLVL2FLU","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":"57a3a62282037c56d5a1bc9a8978274b3dac802501f425935a2eb99605610642","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-23T13:09:52Z","title_canon_sha256":"c35cb98b3d6bc2496dc3266306467b9c0eb97273af1883d7270014a26e453dc9"},"schema_version":"1.0","source":{"id":"1501.05791","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.05791","created_at":"2026-05-18T02:28:48Z"},{"alias_kind":"arxiv_version","alias_value":"1501.05791v1","created_at":"2026-05-18T02:28:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.05791","created_at":"2026-05-18T02:28:48Z"},{"alias_kind":"pith_short_12","alias_value":"HZSW3RQLA54V","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HZSW3RQLA54VTCZM","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HZSW3RQL","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:a1ef838490e3cdb8ba3855496c37011464f1ac9d99ad1dd859ac17a558781d83","target":"graph","created_at":"2026-05-18T02:28:48Z","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":"The formation of chondrules is one of the oldest unsolved mysteries in meteoritics and planet formation. Recently an old idea has been revived: the idea that chondrules form as a result of collisions between planetesimals in which the ejected molten material forms small droplets which solidify to become chondrules. Pre-melting of the planetesimals by radioactive decay of 26Al would help producing sprays of melt even at relatively low impact velocity. In this paper we study the radiative cooling of a ballistically expanding spherical cloud of chondrule droplets ejected from the impact site. We ","authors_text":"Anders Johansen, Cornelis Petrus Dullemond, Sebastian Markus Stammler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-23T13:09:52Z","title":"Forming chondrules in impact splashes. I. Radiative cooling model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.05791","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":"sha256:30b09d664d542d6cf9d4a64cd6cdf41567b4ac9fd71f45dfe54f23b2a254bb8f","target":"record","created_at":"2026-05-18T02:28:48Z","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":"57a3a62282037c56d5a1bc9a8978274b3dac802501f425935a2eb99605610642","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-01-23T13:09:52Z","title_canon_sha256":"c35cb98b3d6bc2496dc3266306467b9c0eb97273af1883d7270014a26e453dc9"},"schema_version":"1.0","source":{"id":"1501.05791","kind":"arxiv","version":1}},"canonical_sha256":"3e656dc60b0779598b2cbedcbaaf455d1b7a9a119cebe80a2fb7b1cd6b986be0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e656dc60b0779598b2cbedcbaaf455d1b7a9a119cebe80a2fb7b1cd6b986be0","first_computed_at":"2026-05-18T02:28:48.976564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:28:48.976564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o1T9aZKhDsH3NLF6B/rH6L2dolrbs0oCIVbKKgZUx42IXuiPRn4976G9OShjF/u+vqIPb8D99ShpM9FH1SaiDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:28:48.976936Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.05791","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30b09d664d542d6cf9d4a64cd6cdf41567b4ac9fd71f45dfe54f23b2a254bb8f","sha256:a1ef838490e3cdb8ba3855496c37011464f1ac9d99ad1dd859ac17a558781d83"],"state_sha256":"d6e33452f27e14b609ca8d96b9fb5277746c2ea92fc70d8450ef7bba300772da"}