{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:JVJ34EZU5G6CA76P6SBLMCNOGU","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":"846c880813249d9890dd74168907e97d47a20adc4d8ff3b6d455506d3e30c33a","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-02-25T03:02:46Z","title_canon_sha256":"297272854e718404680898133baab96db8c14741a76a6495e251e04fde21a05a"},"schema_version":"1.0","source":{"id":"1902.09072","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09072","created_at":"2026-07-04T23:59:48Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09072v2","created_at":"2026-07-04T23:59:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09072","created_at":"2026-07-04T23:59:48Z"},{"alias_kind":"pith_short_12","alias_value":"JVJ34EZU5G6C","created_at":"2026-07-04T23:59:48Z"},{"alias_kind":"pith_short_16","alias_value":"JVJ34EZU5G6CA76P","created_at":"2026-07-04T23:59:48Z"},{"alias_kind":"pith_short_8","alias_value":"JVJ34EZU","created_at":"2026-07-04T23:59:48Z"}],"graph_snapshots":[{"event_id":"sha256:eac0a3f7c93fa4dc554fefb1a79a9ae0c3089c75b8f92dc47b262372e7943eb8","target":"graph","created_at":"2026-07-04T23:59:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1902.09072/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have experimentally determined the production rate of $^{39}$Ar and $^{37}$Ar from cosmic ray neutron interactions in argon at sea level. Understanding these production rates is important for argon-based dark matter experiments that plan to utilize argon extracted from deep underground because it is imperative to know what the ingrowth of $^{39}$Ar will be during the production, transport, and storage of the underground argon. These measurements also allow for the prediction of $^{39}$Ar and $^{37}$Ar concentrations in the atmosphere which can be used to determine the presence of other sour","authors_text":"C. Overman, E. Mace, H.O. Back, M.Zalavadia, R.H.M. Tsang, R. Saldanha, S. Ferrara, S.R. Elliott, T. Alexander","cross_cats":["astro-ph.IM","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-02-25T03:02:46Z","title":"Cosmogenic production of $^{39}$Ar and $^{37}$Ar in argon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09072","kind":"arxiv","version":2},"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":"sha256:4b6a5aa49000fafb97eb3dda18f1a5160ee210a4455cb5a6756d5c06773d4cfc","target":"record","created_at":"2026-07-04T23:59:48Z","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":"846c880813249d9890dd74168907e97d47a20adc4d8ff3b6d455506d3e30c33a","cross_cats_sorted":["astro-ph.IM","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-02-25T03:02:46Z","title_canon_sha256":"297272854e718404680898133baab96db8c14741a76a6495e251e04fde21a05a"},"schema_version":"1.0","source":{"id":"1902.09072","kind":"arxiv","version":2}},"canonical_sha256":"4d53be1334e9bc207fcff482b609ae35178848514971bd1e341ad1263286d43c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d53be1334e9bc207fcff482b609ae35178848514971bd1e341ad1263286d43c","first_computed_at":"2026-07-04T23:59:48.360123Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:48.360123Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MZrYkvi2b+XB3loC8JRaFrdvr28iAxWaZ7qelg03s7aE+gTVHmJNoMWX1aoI8iwe7YbKUjChaFjQurIqZ8qeAA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:48.360615Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09072","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b6a5aa49000fafb97eb3dda18f1a5160ee210a4455cb5a6756d5c06773d4cfc","sha256:eac0a3f7c93fa4dc554fefb1a79a9ae0c3089c75b8f92dc47b262372e7943eb8"],"state_sha256":"31916e35f6aaa8213eb81f883a914d3edcfcceff549c4ed7c366ac182ef79fa9"}