{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:LPFR33DSZQAP2JBWCGX3LIJFIY","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":"6288f3f7fcd03de9f29dad1451c3a79f57f6ab0ddac44c2b83f8d79a2dc74f1f","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-23T13:03:06Z","title_canon_sha256":"0feb0cecd559840d3d1330b3709248ac8226dfa0d72297a5f0c7eec8a021610c"},"schema_version":"1.0","source":{"id":"1308.5119","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.5119","created_at":"2026-05-18T01:47:59Z"},{"alias_kind":"arxiv_version","alias_value":"1308.5119v3","created_at":"2026-05-18T01:47:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.5119","created_at":"2026-05-18T01:47:59Z"},{"alias_kind":"pith_short_12","alias_value":"LPFR33DSZQAP","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"LPFR33DSZQAP2JBW","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"LPFR33DS","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:4a26dae79cb67e2c95734027dbcf0af63d7c0d032debd8cec4ba424964eac5d2","target":"graph","created_at":"2026-05-18T01:47:59Z","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":"Abridged abstract: For stars to form, material must fall inwards from core scales through the envelope towards the central protostar. The velocity profile around protostars is poorly constrained. 6 Class 0 protostars and one Class I protostars observed with HIFI on board Herschel as part of the \"Water in star-forming regions with Herschel\" (WISH) survey show infall signatures in water line observations. We use 1-D non-LTE RATRAN radiative transfer models of the observed water lines to constrain the infall velocity and chemistry in the protostellar envelopes of these sources. We assume a free-f","authors_text":"E.F. van Dishoeck, J.C. Mottram, L.E. Kristensen, M.R. Hogerheijde, M. Schmalzl, R. Visser, S. Bruderer","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-23T13:03:06Z","title":"Waterfalls around protostars: Infall motions towards Class 0/I envelopes as probed by water"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.5119","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":"sha256:96059b4e021684659ae6f83cc4120a76a815791ff35603866d2fdfc5b38b5f31","target":"record","created_at":"2026-05-18T01:47:59Z","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":"6288f3f7fcd03de9f29dad1451c3a79f57f6ab0ddac44c2b83f8d79a2dc74f1f","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-23T13:03:06Z","title_canon_sha256":"0feb0cecd559840d3d1330b3709248ac8226dfa0d72297a5f0c7eec8a021610c"},"schema_version":"1.0","source":{"id":"1308.5119","kind":"arxiv","version":3}},"canonical_sha256":"5bcb1dec72cc00fd243611afb5a1254634f1f7fa1f1f4724a3d82b94bba12109","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bcb1dec72cc00fd243611afb5a1254634f1f7fa1f1f4724a3d82b94bba12109","first_computed_at":"2026-05-18T01:47:59.214620Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:59.214620Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nce2JxHnaHetzlvfi8ShEmy94S38gQSl+qj1F+m04XfJXvXkWEcXk9O7I8mgkhNeOJrp5P9SDY79B+SpJ1EwBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:59.215375Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.5119","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96059b4e021684659ae6f83cc4120a76a815791ff35603866d2fdfc5b38b5f31","sha256:4a26dae79cb67e2c95734027dbcf0af63d7c0d032debd8cec4ba424964eac5d2"],"state_sha256":"f3017d225ec6d183119161c51837e424cad937b947363a2ec18dcaffcffd8e44"}