{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:NV3HCJ2A3Q2NQOTKZCNZU3IMZC","short_pith_number":"pith:NV3HCJ2A","schema_version":"1.0","canonical_sha256":"6d76712740dc34d83a6ac89b9a6d0cc88bf141e5d224ea7a794ff162c6187008","source":{"kind":"arxiv","id":"1404.2253","version":1},"attestation_state":"computed","paper":{"title":"Background Assay and Rejection in DRIFT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Alexei Dorofeev, Alex Murphy, Alissa Monte, Andrew Scarff, Anthony Ezeribe, Daniel Snowden-Ifft, Daniel Walker, Dinesh Loomba, Ed Daw, Eric H. Miller, Eric R. Lee, Jean-Luc Gauvreau, Jeff Brack, John Harton, John Matthews, Leonid Yuriev, Matt Williams, Michael Gold, Neil Spooner, Nguyen Phan, Randy Lafler, Robert Lauer, Sam Telfer, Sean Paling, Steve Sadler","submitted_at":"2014-04-08T19:00:53Z","abstract_excerpt":"The DRIFT-IId dark matter detector is a m$^3$-scale low-pressure TPC with directional sensitivity to WIMP-induced nuclear recoils. Its primary backgrounds were due to alpha decays from contamination on the central cathode. Efforts to reduce these backgrounds led to replacing the 20 \\mu m wire central cathode with one constructed from 0.9 \\mu m aluminized mylar, which is almost totally transparent to alpha particles. Detailed modeling of the nature and origin of the remaining backgrounds led to an in-situ, ppt-sensitive assay of alpha decay backgrounds from the central cathode. This led to furt"},"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":"1404.2253","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-04-08T19:00:53Z","cross_cats_sorted":["astro-ph.IM","hep-ex"],"title_canon_sha256":"fbf5b397e5ebfba49f3fdb14b682d637f65a8c6a3007a1767aeb051a77b07285","abstract_canon_sha256":"7c37686006620b59e78fa1ab790de2be99196603bff1336e58d506aa26ff1f9e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:27:18.813545Z","signature_b64":"nhz1tVYJoVnaPoilXBLn4aNzw4NmcrXTx8PhgUWd8L87VVw12yPE6MteYLjtRABj8zZfK79aO2P8aERhE1MVDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d76712740dc34d83a6ac89b9a6d0cc88bf141e5d224ea7a794ff162c6187008","last_reissued_at":"2026-05-18T02:27:18.812786Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:27:18.812786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Background Assay and Rejection in DRIFT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","hep-ex"],"primary_cat":"physics.ins-det","authors_text":"Alexei Dorofeev, Alex Murphy, Alissa Monte, Andrew Scarff, Anthony Ezeribe, Daniel Snowden-Ifft, Daniel Walker, Dinesh Loomba, Ed Daw, Eric H. Miller, Eric R. Lee, Jean-Luc Gauvreau, Jeff Brack, John Harton, John Matthews, Leonid Yuriev, Matt Williams, Michael Gold, Neil Spooner, Nguyen Phan, Randy Lafler, Robert Lauer, Sam Telfer, Sean Paling, Steve Sadler","submitted_at":"2014-04-08T19:00:53Z","abstract_excerpt":"The DRIFT-IId dark matter detector is a m$^3$-scale low-pressure TPC with directional sensitivity to WIMP-induced nuclear recoils. Its primary backgrounds were due to alpha decays from contamination on the central cathode. Efforts to reduce these backgrounds led to replacing the 20 \\mu m wire central cathode with one constructed from 0.9 \\mu m aluminized mylar, which is almost totally transparent to alpha particles. Detailed modeling of the nature and origin of the remaining backgrounds led to an in-situ, ppt-sensitive assay of alpha decay backgrounds from the central cathode. This led to furt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.2253","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":""},"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":"1404.2253","created_at":"2026-05-18T02:27:18.812906+00:00"},{"alias_kind":"arxiv_version","alias_value":"1404.2253v1","created_at":"2026-05-18T02:27:18.812906+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.2253","created_at":"2026-05-18T02:27:18.812906+00:00"},{"alias_kind":"pith_short_12","alias_value":"NV3HCJ2A3Q2N","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_16","alias_value":"NV3HCJ2A3Q2NQOTK","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_8","alias_value":"NV3HCJ2A","created_at":"2026-05-18T12:28:41.024544+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/NV3HCJ2A3Q2NQOTKZCNZU3IMZC","json":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC.json","graph_json":"https://pith.science/api/pith-number/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/graph.json","events_json":"https://pith.science/api/pith-number/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/events.json","paper":"https://pith.science/paper/NV3HCJ2A"},"agent_actions":{"view_html":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC","download_json":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC.json","view_paper":"https://pith.science/paper/NV3HCJ2A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1404.2253&json=true","fetch_graph":"https://pith.science/api/pith-number/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/graph.json","fetch_events":"https://pith.science/api/pith-number/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/action/storage_attestation","attest_author":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/action/author_attestation","sign_citation":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/action/citation_signature","submit_replication":"https://pith.science/pith/NV3HCJ2A3Q2NQOTKZCNZU3IMZC/action/replication_record"}},"created_at":"2026-05-18T02:27:18.812906+00:00","updated_at":"2026-05-18T02:27:18.812906+00:00"}