{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:POK5KZXRUXRFQ75O7MOTNNAZAV","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":"20e497d771fdd8d3950bf970248a6ec67eaef33faa5b9cfd488993d23087366f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:01Z","title_canon_sha256":"0b3f2972b13583b8f4692e02532be2dc052f34ad91b6f162eceb9c72405d39d9"},"schema_version":"1.0","source":{"id":"1512.04944","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.04944","created_at":"2026-05-18T01:15:14Z"},{"alias_kind":"arxiv_version","alias_value":"1512.04944v3","created_at":"2026-05-18T01:15:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.04944","created_at":"2026-05-18T01:15:14Z"},{"alias_kind":"pith_short_12","alias_value":"POK5KZXRUXRF","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"POK5KZXRUXRFQ75O","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"POK5KZXR","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:50273cd998d849ed69b922ef7e0b90b2e9222d5022d675ff7c5b2e48cfda6564","target":"graph","created_at":"2026-05-18T01:15:14Z","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"},"paper":{"abstract_excerpt":"By comparing 3 constituents of Orion A (gas, protostars, and pre-main-sequence stars), both morhologically and kinematically, we derive the following. The gas surface density near the integral-shaped filament (ISF) is well represented by a power law, Sigma(b)=72 Msun/pc^2(b/pc)^{-5/8} for our entire range, 0.05<b/pc<8.5, of distance from the filament ridge. Essentially all protostars lie on the ISF or other filament ridges, while almost all pre-main-sequence stars do not. Combined with the fact that protostars move <1 kms relative to the filaments while stars move several times faster, this im","authors_text":"Amelia M. Stutz, Andrew Gould","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:01Z","title":"Slingshot Mechanism in Orion: Kinematic Evidence For Ejection of Protostars by Filaments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.04944","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":"sha256:1b4777b57e28c64fca09d387802415fcd09361fb63da2aba7509a982068b2e18","target":"record","created_at":"2026-05-18T01:15:14Z","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":"20e497d771fdd8d3950bf970248a6ec67eaef33faa5b9cfd488993d23087366f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-15T21:00:01Z","title_canon_sha256":"0b3f2972b13583b8f4692e02532be2dc052f34ad91b6f162eceb9c72405d39d9"},"schema_version":"1.0","source":{"id":"1512.04944","kind":"arxiv","version":3}},"canonical_sha256":"7b95d566f1a5e2587faefb1d36b4190541dd10ffea18826b78820304d462336f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b95d566f1a5e2587faefb1d36b4190541dd10ffea18826b78820304d462336f","first_computed_at":"2026-05-18T01:15:14.472324Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:14.472324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gPRw5a7IEMDeeJF5DH5ArZk3ZLUUA5dMe5qMkJWFt+OiXhXjn16RGqqPNY/3nplQ93EdFYas+PIo+A9lopNdAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:14.473072Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.04944","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b4777b57e28c64fca09d387802415fcd09361fb63da2aba7509a982068b2e18","sha256:50273cd998d849ed69b922ef7e0b90b2e9222d5022d675ff7c5b2e48cfda6564"],"state_sha256":"e6deaac588aded3acce0d5e835fbeea5b19b0e3b97aa6060e4b3f67bc92247aa"}