{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:A25IP6JHBTM7F6SOYFCTKJ2EHT","short_pith_number":"pith:A25IP6JH","schema_version":"1.0","canonical_sha256":"06ba87f9270cd9f2fa4ec1453527443cf715788d1098361afe8a137add121d75","source":{"kind":"arxiv","id":"2605.30194","version":1},"attestation_state":"computed","paper":{"title":"The relative interfacial thermal contraction as a possible origin of the low-energy excess in cryogenic calorimeters","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"physics.ins-det","authors_text":"Pasquale Pavone, Vanessa Zema","submitted_at":"2026-05-28T16:34:17Z","abstract_excerpt":"Low threshold cryogenic calorimeters are a key technology for the advancement of rare-event searches. However, since a few years their sensitivity reach is challenged by the presence of a rising spectrum at low energies named low-energy excess (LEE), ascribed to an unknown background. In this work, we describe the LEE as absorber events induced by the relative thermal-contraction coefficient mismatch between the absorber and the SiO$_2$ amorphous layer underneath the transition-edge sensors (TESs), present for example in the case of CRESST detectors. The relative contraction in processes with "},"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":"2605.30194","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ins-det","submitted_at":"2026-05-28T16:34:17Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"f7cdf57c8002a0b8527d1969ca91fcab30edb209ac7a07b00b2b61c8d1d358af","abstract_canon_sha256":"18e683874b9ecf8240a7ed6b8b7875deca6029fa0249ede810408ec29e6c638d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-29T02:06:12.497148Z","signature_b64":"4tbl1TyooBPPubgIW3Gne3c0L7rCvs/GbZFdajPJgB6129A/DieEmZpnV+n7fSRwnTMRhXMRy5qXIsL9cZ7HCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06ba87f9270cd9f2fa4ec1453527443cf715788d1098361afe8a137add121d75","last_reissued_at":"2026-05-29T02:06:12.496778Z","signature_status":"signed_v1","first_computed_at":"2026-05-29T02:06:12.496778Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The relative interfacial thermal contraction as a possible origin of the low-energy excess in cryogenic calorimeters","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"physics.ins-det","authors_text":"Pasquale Pavone, Vanessa Zema","submitted_at":"2026-05-28T16:34:17Z","abstract_excerpt":"Low threshold cryogenic calorimeters are a key technology for the advancement of rare-event searches. However, since a few years their sensitivity reach is challenged by the presence of a rising spectrum at low energies named low-energy excess (LEE), ascribed to an unknown background. In this work, we describe the LEE as absorber events induced by the relative thermal-contraction coefficient mismatch between the absorber and the SiO$_2$ amorphous layer underneath the transition-edge sensors (TESs), present for example in the case of CRESST detectors. The relative contraction in processes with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.30194","kind":"arxiv","version":1},"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/2605.30194/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":"2605.30194","created_at":"2026-05-29T02:06:12.496832+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.30194v1","created_at":"2026-05-29T02:06:12.496832+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.30194","created_at":"2026-05-29T02:06:12.496832+00:00"},{"alias_kind":"pith_short_12","alias_value":"A25IP6JHBTM7","created_at":"2026-05-29T02:06:12.496832+00:00"},{"alias_kind":"pith_short_16","alias_value":"A25IP6JHBTM7F6SO","created_at":"2026-05-29T02:06:12.496832+00:00"},{"alias_kind":"pith_short_8","alias_value":"A25IP6JH","created_at":"2026-05-29T02:06:12.496832+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/A25IP6JHBTM7F6SOYFCTKJ2EHT","json":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT.json","graph_json":"https://pith.science/api/pith-number/A25IP6JHBTM7F6SOYFCTKJ2EHT/graph.json","events_json":"https://pith.science/api/pith-number/A25IP6JHBTM7F6SOYFCTKJ2EHT/events.json","paper":"https://pith.science/paper/A25IP6JH"},"agent_actions":{"view_html":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT","download_json":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT.json","view_paper":"https://pith.science/paper/A25IP6JH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.30194&json=true","fetch_graph":"https://pith.science/api/pith-number/A25IP6JHBTM7F6SOYFCTKJ2EHT/graph.json","fetch_events":"https://pith.science/api/pith-number/A25IP6JHBTM7F6SOYFCTKJ2EHT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT/action/storage_attestation","attest_author":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT/action/author_attestation","sign_citation":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT/action/citation_signature","submit_replication":"https://pith.science/pith/A25IP6JHBTM7F6SOYFCTKJ2EHT/action/replication_record"}},"created_at":"2026-05-29T02:06:12.496832+00:00","updated_at":"2026-05-29T02:06:12.496832+00:00"}