{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3KNTU2M6KBZ3GMUDIAXHEOUWM6","short_pith_number":"pith:3KNTU2M6","canonical_record":{"source":{"id":"2102.13320","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-02-26T06:23:48Z","cross_cats_sorted":[],"title_canon_sha256":"e6243a41a5452bdfc22353be1f203d061ae6ab035eaf244d78830b039627eeee","abstract_canon_sha256":"7a929f3633b67c68b3c96a1c425bb7a505165eb73c6dca7a1937d3ab7512026a"},"schema_version":"1.0"},"canonical_sha256":"da9b3a699e5073b33283402e723a9667a2736085b46800d461ddcd2bbf19c37a","source":{"kind":"arxiv","id":"2102.13320","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.13320","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"arxiv_version","alias_value":"2102.13320v3","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.13320","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_12","alias_value":"3KNTU2M6KBZ3","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_16","alias_value":"3KNTU2M6KBZ3GMUD","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_8","alias_value":"3KNTU2M6","created_at":"2026-07-05T03:14:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3KNTU2M6KBZ3GMUDIAXHEOUWM6","target":"record","payload":{"canonical_record":{"source":{"id":"2102.13320","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-02-26T06:23:48Z","cross_cats_sorted":[],"title_canon_sha256":"e6243a41a5452bdfc22353be1f203d061ae6ab035eaf244d78830b039627eeee","abstract_canon_sha256":"7a929f3633b67c68b3c96a1c425bb7a505165eb73c6dca7a1937d3ab7512026a"},"schema_version":"1.0"},"canonical_sha256":"da9b3a699e5073b33283402e723a9667a2736085b46800d461ddcd2bbf19c37a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:14:53.998985Z","signature_b64":"tSlgxvbWTwghgUynfvACUMKmSaR7G53mYHHqAm64UER/4rO0x5GGe391gvVi/E+vB8D2YLekdjcxRvXw75ekAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da9b3a699e5073b33283402e723a9667a2736085b46800d461ddcd2bbf19c37a","last_reissued_at":"2026-07-05T03:14:53.998529Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:14:53.998529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.13320","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:14:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jw9EtnEIX2stzA7hi/nnQmmeLnbBJyuWgQsoyw0yw2JgjgFzTnt5GD8KgRgrdncBHncp1zEB+UDsqzW/seCpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T11:50:07.171505Z"},"content_sha256":"0baba2f836a45c0e76f87560ad082ad10aef0257222055d3bb43f110c282c9d6","schema_version":"1.0","event_id":"sha256:0baba2f836a45c0e76f87560ad082ad10aef0257222055d3bb43f110c282c9d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3KNTU2M6KBZ3GMUDIAXHEOUWM6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-adiabatic single-electron pump in a dopant-free GaAs/AlGaAs 2DEG","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Shetty, B. Buonacorsi, F. Hohls, F. Sfigakis, H. S. Kim, J. Baugh, M. C. Tam, M. E. Reimer, S.R. Harrigan, Z. R. Wasilewski","submitted_at":"2021-02-26T06:23:48Z","abstract_excerpt":"We have realized quantized charge pumping using non-adiabatic single-electron pumps in dopant-free GaAs two-dimensional electron gases (2DEGs). The dopant-free III-V platform allows for ambipolar devices, such as p-i-n junctions, that could be combined with such pumps to form electrically-driven single photon sources. Our pumps operate at up to 0.95 GHz and achieve remarkable performance considering the relaxed experimental conditions: one-gate pumping in zero magnetic field and temperatures up to 5K, driven by a simple RF sine waveform. Fitting to a universal decay cascade model yields values"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.13320","kind":"arxiv","version":3},"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/2102.13320/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:14:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bUvPDUYid2wAv/EjE5/YCh66iPdLFFlmMkL+IeE2BBjoLDbS/XoKAnaZRZlKBIwF79h3x23F4znS17tCnVoCDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T11:50:07.171875Z"},"content_sha256":"8de49e679bd2ed6ddec2e8199ea9ceb64c28024b38784b40601ea90823586cf1","schema_version":"1.0","event_id":"sha256:8de49e679bd2ed6ddec2e8199ea9ceb64c28024b38784b40601ea90823586cf1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/bundle.json","state_url":"https://pith.science/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-06T11:50:07Z","links":{"resolver":"https://pith.science/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6","bundle":"https://pith.science/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/bundle.json","state":"https://pith.science/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KNTU2M6KBZ3GMUDIAXHEOUWM6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3KNTU2M6KBZ3GMUDIAXHEOUWM6","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":"7a929f3633b67c68b3c96a1c425bb7a505165eb73c6dca7a1937d3ab7512026a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-02-26T06:23:48Z","title_canon_sha256":"e6243a41a5452bdfc22353be1f203d061ae6ab035eaf244d78830b039627eeee"},"schema_version":"1.0","source":{"id":"2102.13320","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.13320","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"arxiv_version","alias_value":"2102.13320v3","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.13320","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_12","alias_value":"3KNTU2M6KBZ3","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_16","alias_value":"3KNTU2M6KBZ3GMUD","created_at":"2026-07-05T03:14:53Z"},{"alias_kind":"pith_short_8","alias_value":"3KNTU2M6","created_at":"2026-07-05T03:14:53Z"}],"graph_snapshots":[{"event_id":"sha256:8de49e679bd2ed6ddec2e8199ea9ceb64c28024b38784b40601ea90823586cf1","target":"graph","created_at":"2026-07-05T03:14:53Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2102.13320/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have realized quantized charge pumping using non-adiabatic single-electron pumps in dopant-free GaAs two-dimensional electron gases (2DEGs). The dopant-free III-V platform allows for ambipolar devices, such as p-i-n junctions, that could be combined with such pumps to form electrically-driven single photon sources. Our pumps operate at up to 0.95 GHz and achieve remarkable performance considering the relaxed experimental conditions: one-gate pumping in zero magnetic field and temperatures up to 5K, driven by a simple RF sine waveform. Fitting to a universal decay cascade model yields values","authors_text":"A. Shetty, B. Buonacorsi, F. Hohls, F. Sfigakis, H. S. Kim, J. Baugh, M. C. Tam, M. E. Reimer, S.R. Harrigan, Z. R. Wasilewski","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-02-26T06:23:48Z","title":"Non-adiabatic single-electron pump in a dopant-free GaAs/AlGaAs 2DEG"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.13320","kind":"arxiv","version":3},"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":"sha256:0baba2f836a45c0e76f87560ad082ad10aef0257222055d3bb43f110c282c9d6","target":"record","created_at":"2026-07-05T03:14:53Z","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":"7a929f3633b67c68b3c96a1c425bb7a505165eb73c6dca7a1937d3ab7512026a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2021-02-26T06:23:48Z","title_canon_sha256":"e6243a41a5452bdfc22353be1f203d061ae6ab035eaf244d78830b039627eeee"},"schema_version":"1.0","source":{"id":"2102.13320","kind":"arxiv","version":3}},"canonical_sha256":"da9b3a699e5073b33283402e723a9667a2736085b46800d461ddcd2bbf19c37a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da9b3a699e5073b33283402e723a9667a2736085b46800d461ddcd2bbf19c37a","first_computed_at":"2026-07-05T03:14:53.998529Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:14:53.998529Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tSlgxvbWTwghgUynfvACUMKmSaR7G53mYHHqAm64UER/4rO0x5GGe391gvVi/E+vB8D2YLekdjcxRvXw75ekAA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:14:53.998985Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.13320","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0baba2f836a45c0e76f87560ad082ad10aef0257222055d3bb43f110c282c9d6","sha256:8de49e679bd2ed6ddec2e8199ea9ceb64c28024b38784b40601ea90823586cf1"],"state_sha256":"966a3c12b1a24a16aa34fbe5e1ee47a0f0fc1a684de534186b85ee208baf7d2c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AQqDHEquZg5lRFqYtM7lh7SgbdN8o4Mr0vXf/xWph2NVl3H7dBJkQf2kgw9W2qvsTcLrBKZD6RjP9zdYCIRVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T11:50:07.173809Z","bundle_sha256":"fbbc9b02fffd9b2ecb73996ff84078301dd30a111ac61714ab6fd3bae855878d"}}