{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:U2ZRLS4DYSI3FP5OCMCJS62TB5","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":"4ef5452baf17a9986c4f43c47a8933bdba58b831d2008e5093a99211235da3ae","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-08-04T17:05:26Z","title_canon_sha256":"936b47fbb314123fea46f452b00fb53e76f14c593c6e8a9a6eda4fd932025b7f"},"schema_version":"1.0","source":{"id":"2108.02176","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.02176","created_at":"2026-07-05T04:23:04Z"},{"alias_kind":"arxiv_version","alias_value":"2108.02176v2","created_at":"2026-07-05T04:23:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02176","created_at":"2026-07-05T04:23:04Z"},{"alias_kind":"pith_short_12","alias_value":"U2ZRLS4DYSI3","created_at":"2026-07-05T04:23:04Z"},{"alias_kind":"pith_short_16","alias_value":"U2ZRLS4DYSI3FP5O","created_at":"2026-07-05T04:23:04Z"},{"alias_kind":"pith_short_8","alias_value":"U2ZRLS4D","created_at":"2026-07-05T04:23:04Z"}],"graph_snapshots":[{"event_id":"sha256:2e8f29b2f9d471b298307922b8c48ec642743b9e5c4979619e9269553474994b","target":"graph","created_at":"2026-07-05T04:23:04Z","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/2108.02176/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Superfluid $^4$He is a promising target material for direct detection of light ($<$ 1 GeV) dark matter. Possible signal channels available for readout in this medium include prompt photons, triplet excimers, and roton and phonon quasiparticles. The relative yield of these signals has implications for the sensitivity and discrimination power of a superfluid $^4$He dark matter detector. Using a 16~cm$^3$ volume of 1.75~K superfluid $^4$He read out by six immersed photomultiplier tubes, we measured the scintillation from electronic recoils ranging between 36.3 and 185 keV$_\\mathrm{ee}$, yielding ","authors_text":"A. Serafin, A. S. Seilnacht, A. Suzuki, B. Penning, B. Suerfu, C. Chang, C. W. Fink, D. N. McKinsey, E. C. Glazer, G. Wang, H. D. Pinckney, J. Lin, J. S. Nguyen, J. Zhang, L. Yuan, M. Garcia-Sciveres, M. Lisovenko, M. Pyle, P. K. Patel, P. Sorensen, R. J. Smith, R. K. Romani, R. Mahapatra, S. A. Hertel, S. Kravitz, S. L. Watkins, SPICE/HeRALD Collaboration: A. Biekert, V. G. Yefremenko, V. Novosad, V. Velan, W. Guo, W. Page","cross_cats":["astro-ph.IM","hep-ex"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-08-04T17:05:26Z","title":"Scintillation yield from electronic and nuclear recoils in superfluid $^4$He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02176","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":"sha256:247903e59c0187c35ed74a2b048313ec5feef0a1df5707622d1feca479ec5636","target":"record","created_at":"2026-07-05T04:23:04Z","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":"4ef5452baf17a9986c4f43c47a8933bdba58b831d2008e5093a99211235da3ae","cross_cats_sorted":["astro-ph.IM","hep-ex"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2021-08-04T17:05:26Z","title_canon_sha256":"936b47fbb314123fea46f452b00fb53e76f14c593c6e8a9a6eda4fd932025b7f"},"schema_version":"1.0","source":{"id":"2108.02176","kind":"arxiv","version":2}},"canonical_sha256":"a6b315cb83c491b2bfae1304997b530f54545a23ccf34c017dc89811a43b5221","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6b315cb83c491b2bfae1304997b530f54545a23ccf34c017dc89811a43b5221","first_computed_at":"2026-07-05T04:23:04.762476Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:23:04.762476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dIPQC2tzmBU0MXcLS8ynd6v4fVC0tWRqBZhvhINXWbf8n3VA4yXLzarAkzE/16mw9wg2TwqcCblQAWQorNvZBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:23:04.762949Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.02176","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:247903e59c0187c35ed74a2b048313ec5feef0a1df5707622d1feca479ec5636","sha256:2e8f29b2f9d471b298307922b8c48ec642743b9e5c4979619e9269553474994b"],"state_sha256":"83afaccaa09dffd356461d7f7fce0c3f48dab6cdfb9935206722a9945be04f27"}