{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:P467OLRZPJDJGWX7BPV5AI27CJ","short_pith_number":"pith:P467OLRZ","schema_version":"1.0","canonical_sha256":"7f3df72e397a46935aff0bebd0235f127a4b998f9f0a0ffd995e7f75fa321411","source":{"kind":"arxiv","id":"2112.14495","version":2},"attestation_state":"computed","paper":{"title":"Identification of the low energy excess in dark matter searches with crystal defects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Kai Nordlund, Kimmo Tuominen, Matti Heikinheimo, Nader Mirabolfathi, Sebastian Sassi","submitted_at":"2021-12-29T10:59:52Z","abstract_excerpt":"An excess of events of unknown origin at low energies below 1 keV has been observed in multiple low-threshold dark matter detectors. Depending on the target material, nuclear recoil events at these energies may cause lattice defects, in which case a part of the true recoil energy is stored in the defect and not observed in the phonon detector. If the threshold for defect creation is sharp, this effect leads to a prominent feature in the observed recoil spectrum. Electronic recoils at low energies do not create defects and therefore the feature in the observed spectrum is not expected in that c"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2112.14495","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-12-29T10:59:52Z","cross_cats_sorted":[],"title_canon_sha256":"30cd514b96810bd7dfef6349b18a54223560ad660d3bc0098c4e9e3d42975588","abstract_canon_sha256":"66e7ab5119cfe6fecefe824b58b43161aee52edaa6416f88fa159121d0e1aec5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:02:56.862712Z","signature_b64":"dofTqJUbdcMIdWBtB+Typ6XgcyEdPIomUDVrkLOYKLRAPqZ+QlEPSMZoqFIOJYpqckIaChzK3afNN2KOCrzrAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f3df72e397a46935aff0bebd0235f127a4b998f9f0a0ffd995e7f75fa321411","last_reissued_at":"2026-07-05T05:02:56.862337Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:02:56.862337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Identification of the low energy excess in dark matter searches with crystal defects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Kai Nordlund, Kimmo Tuominen, Matti Heikinheimo, Nader Mirabolfathi, Sebastian Sassi","submitted_at":"2021-12-29T10:59:52Z","abstract_excerpt":"An excess of events of unknown origin at low energies below 1 keV has been observed in multiple low-threshold dark matter detectors. Depending on the target material, nuclear recoil events at these energies may cause lattice defects, in which case a part of the true recoil energy is stored in the defect and not observed in the phonon detector. If the threshold for defect creation is sharp, this effect leads to a prominent feature in the observed recoil spectrum. Electronic recoils at low energies do not create defects and therefore the feature in the observed spectrum is not expected in that c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.14495","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2112.14495/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2112.14495","created_at":"2026-07-05T05:02:56.862394+00:00"},{"alias_kind":"arxiv_version","alias_value":"2112.14495v2","created_at":"2026-07-05T05:02:56.862394+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.14495","created_at":"2026-07-05T05:02:56.862394+00:00"},{"alias_kind":"pith_short_12","alias_value":"P467OLRZPJDJ","created_at":"2026-07-05T05:02:56.862394+00:00"},{"alias_kind":"pith_short_16","alias_value":"P467OLRZPJDJGWX7","created_at":"2026-07-05T05:02:56.862394+00:00"},{"alias_kind":"pith_short_8","alias_value":"P467OLRZ","created_at":"2026-07-05T05:02:56.862394+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ","json":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ.json","graph_json":"https://pith.science/api/pith-number/P467OLRZPJDJGWX7BPV5AI27CJ/graph.json","events_json":"https://pith.science/api/pith-number/P467OLRZPJDJGWX7BPV5AI27CJ/events.json","paper":"https://pith.science/paper/P467OLRZ"},"agent_actions":{"view_html":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ","download_json":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ.json","view_paper":"https://pith.science/paper/P467OLRZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2112.14495&json=true","fetch_graph":"https://pith.science/api/pith-number/P467OLRZPJDJGWX7BPV5AI27CJ/graph.json","fetch_events":"https://pith.science/api/pith-number/P467OLRZPJDJGWX7BPV5AI27CJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ/action/storage_attestation","attest_author":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ/action/author_attestation","sign_citation":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ/action/citation_signature","submit_replication":"https://pith.science/pith/P467OLRZPJDJGWX7BPV5AI27CJ/action/replication_record"}},"created_at":"2026-07-05T05:02:56.862394+00:00","updated_at":"2026-07-05T05:02:56.862394+00:00"}