{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:WE3XKNKECUWDMMTOACKN52CCJK","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":"72fb0215c1d1ac0fcb22dd258e85b214f5039fffb0f02683dff10f739d56b114","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-12T16:11:52Z","title_canon_sha256":"72927dce5ee4af339fd6720daf995daa357fcc5df5b4e02b95055e81a4013e70"},"schema_version":"1.0","source":{"id":"1011.2970","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2970","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2970v1","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2970","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"WE3XKNKECUWD","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"WE3XKNKECUWDMMTO","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"WE3XKNKE","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:d7da19579d5e7ee0c7b13846c2c7fe786fad71cf03097ac1089b2bb2e7c7e0e9","target":"graph","created_at":"2026-05-18T02:04:48Z","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 HDO/H2O abundance ratio is thought to be a key diagnostic on the evolution of water during the star- and planet-formation process and thus on its origin on Earth. We here present millimeter-wavelength high angular resolution observations of the deeply embedded protostar NGC1333-IRAS4B from the Submillimeter Array targeting the 3(1,2)-2(2,1) transition of HDO at 225.6 GHz (Eu = 170 K). We do not (or only very tentatively) detect the HDO line toward the central protostar, contrasting the previous prominent detection of a line from another water isotopologue, H2-18-O, with similar excitation ","authors_text":"Ewine F. van Dishoeck, Jes K. Jorgensen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-12T16:11:52Z","title":"The HDO/H2O ratio in gas in the inner regions of a low-mass protostar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2970","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:dce03bbbe44f0853641aafdec82dfaee80a963a9492fcdd0288e0eaef1cf5895","target":"record","created_at":"2026-05-18T02:04:48Z","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":"72fb0215c1d1ac0fcb22dd258e85b214f5039fffb0f02683dff10f739d56b114","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-11-12T16:11:52Z","title_canon_sha256":"72927dce5ee4af339fd6720daf995daa357fcc5df5b4e02b95055e81a4013e70"},"schema_version":"1.0","source":{"id":"1011.2970","kind":"arxiv","version":1}},"canonical_sha256":"b137753544152c36326e0094dee8424a9b4c5db0d765da4088535bf52f58d3d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b137753544152c36326e0094dee8424a9b4c5db0d765da4088535bf52f58d3d0","first_computed_at":"2026-05-18T02:04:48.238174Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:48.238174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Weu9oXCVBdjQhm5IbHKCRcnwn8SgDCPtHcUt0/DcpQiLbvR7q/cx+FtEc9nKzFWk5e/WlH4EvfWxa5+5/bSfAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:48.238790Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2970","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dce03bbbe44f0853641aafdec82dfaee80a963a9492fcdd0288e0eaef1cf5895","sha256:d7da19579d5e7ee0c7b13846c2c7fe786fad71cf03097ac1089b2bb2e7c7e0e9"],"state_sha256":"d87370283e79d3a0c31f61b3c911552adc699dd4b0a8dbd4ce822f8b92475d72"}