{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:HLPMA7P6XCOSQDVHPPZUXIHB6W","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":"420755f64ca96f132baebcfd35c17985a08e51d62a585e3f9359862a1b86eeaf","cross_cats_sorted":["nucl-th","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-11-20T20:20:57Z","title_canon_sha256":"08f6534bd46de3c9a4838a496b54d1be0763518c2c1450c34676bb650fa33416"},"schema_version":"1.0","source":{"id":"0911.4115","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.4115","created_at":"2026-05-18T04:32:53Z"},{"alias_kind":"arxiv_version","alias_value":"0911.4115v2","created_at":"2026-05-18T04:32:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.4115","created_at":"2026-05-18T04:32:53Z"},{"alias_kind":"pith_short_12","alias_value":"HLPMA7P6XCOS","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"HLPMA7P6XCOSQDVH","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"HLPMA7P6","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:e88913a7f8b716ca83f15564b28e4d8637ccbc7230e890a9f6d389465df8623e","target":"graph","created_at":"2026-05-18T04:32:53Z","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"},"paper":{"abstract_excerpt":"We review the diffuse scattering and the loss coefficient in ultracold neutron reflection from slightly rough surfaces, report a surprising reduction in loss coefficient due to roughness, and discuss the possibility of transition from quantum treatment to ray optics. The results are used in a computer simulation of neutron storage in a recent neutron lifetime experiment that re-ported a large discrepancy of neutron lifetime with the current particle data value. Our partial re-analysis suggests the possibility of systematic effects that were not included in this publication.","authors_text":"A. M. Desai, A. Steyerl, C. Kaufman, S. S. Malik","cross_cats":["nucl-th","physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-11-20T20:20:57Z","title":"Surface roughness effect on ultracold neutron interaction with a wall and implications for computer simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.4115","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:cf28febd14ff6f59ca37bda5069d6ca99921b96a47c7b899bb090e3179018de0","target":"record","created_at":"2026-05-18T04:32:53Z","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":"420755f64ca96f132baebcfd35c17985a08e51d62a585e3f9359862a1b86eeaf","cross_cats_sorted":["nucl-th","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.other","submitted_at":"2009-11-20T20:20:57Z","title_canon_sha256":"08f6534bd46de3c9a4838a496b54d1be0763518c2c1450c34676bb650fa33416"},"schema_version":"1.0","source":{"id":"0911.4115","kind":"arxiv","version":2}},"canonical_sha256":"3adec07dfeb89d280ea77bf34ba0e1f5a0015e89fb6b0a0166cdf9ce373b3117","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3adec07dfeb89d280ea77bf34ba0e1f5a0015e89fb6b0a0166cdf9ce373b3117","first_computed_at":"2026-05-18T04:32:53.475243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:32:53.475243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QiQK6EBQ1ff7TQ9ajsQbdoE0AdZiX8WPweoyqQnb8Jx5CRYJ1GgnFEZf3o+UgA0/pkGvicQeXiArtXEGJMqZBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:32:53.475647Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.4115","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf28febd14ff6f59ca37bda5069d6ca99921b96a47c7b899bb090e3179018de0","sha256:e88913a7f8b716ca83f15564b28e4d8637ccbc7230e890a9f6d389465df8623e"],"state_sha256":"7d9382f263965e780b3110c089a7d0cd214536f57f79b2ebbfcfef976dd68b7d"}