{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ZXJ4TQPZRCASRVVME7TJXBLJPY","short_pith_number":"pith:ZXJ4TQPZ","canonical_record":{"source":{"id":"1804.07219","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-19T15:14:15Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"91271a24dc939bf833d74da69d2d63258679f6a7b94bb0c4fa6e76552ce9edc5","abstract_canon_sha256":"138c3c523db66810c65bf50f4ee653aacd4f19b468cae26257e5230647ba9ba4"},"schema_version":"1.0"},"canonical_sha256":"cdd3c9c1f9888128d6ac27e69b85697e14f67750ee571ff0352cdce2e5615e77","source":{"kind":"arxiv","id":"1804.07219","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07219","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07219v2","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07219","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZXJ4TQPZRCAS","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZXJ4TQPZRCASRVVM","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZXJ4TQPZ","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ZXJ4TQPZRCASRVVME7TJXBLJPY","target":"record","payload":{"canonical_record":{"source":{"id":"1804.07219","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-19T15:14:15Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"91271a24dc939bf833d74da69d2d63258679f6a7b94bb0c4fa6e76552ce9edc5","abstract_canon_sha256":"138c3c523db66810c65bf50f4ee653aacd4f19b468cae26257e5230647ba9ba4"},"schema_version":"1.0"},"canonical_sha256":"cdd3c9c1f9888128d6ac27e69b85697e14f67750ee571ff0352cdce2e5615e77","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:31.030710Z","signature_b64":"STKxP6pJI4Qtf8XNqChowkA1PB016SeUHsVWlQqH8Si+GkQjk3PH1NPiA0dGmMhWAUbUJeY+R7DxnPx8A4m0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cdd3c9c1f9888128d6ac27e69b85697e14f67750ee571ff0352cdce2e5615e77","last_reissued_at":"2026-05-18T00:08:31.030290Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:31.030290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.07219","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"knlZj4netn0qk6WqFZYGSjZuq5fHjzbZlKmz++JSOQj23ivxW1Nh3nF4ki992zlb0cpcVRQN83GQcFwqazH2Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:24:51.262633Z"},"content_sha256":"1231b84df1e416586adec3552d03996aaf7d52a393121fea216768ed9d0856da","schema_version":"1.0","event_id":"sha256:1231b84df1e416586adec3552d03996aaf7d52a393121fea216768ed9d0856da"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ZXJ4TQPZRCASRVVME7TJXBLJPY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Loschmidt echo driven by hyperfine and electric-quadrupole interactions in nanoscale nuclear spin baths","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Ceyhun Bulutay, Ekrem Taha G\\\"uldeste","submitted_at":"2018-04-19T15:14:15Z","abstract_excerpt":"The nuclear spin bath (NSB) dynamics and its quantum control are of importance for the storage and processing of quantum information within a semiconductor environment. In the presence of a carrier spin, primarily it is the hyperfine interaction that rules the high frequency NSB characteristics. Here, we first study the overall coherence decay and rephasings in a hyperfine-driven NSB through the temporal and spectral behaviors of the so-called Loschmidt echo (LE). Its dependence on the NSB size, initial polarization, and coupling inhomogeneity are separately investigated, which leads to a simp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07219","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":""},"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":"2026-05-18T00:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zsx40pFMq7nyYt7zKKq7qhzVkRFBq489GAbRNYR3p1wgdtGgZSwpkqgmQv+Zb6DI4oD/tX0l9tmpA3FxjBIuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:24:51.263368Z"},"content_sha256":"f7647e6bf8a7919f16c14b5bfc2ae0456a449717fbee523bc1eb2c873f4f7e8d","schema_version":"1.0","event_id":"sha256:f7647e6bf8a7919f16c14b5bfc2ae0456a449717fbee523bc1eb2c873f4f7e8d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/bundle.json","state_url":"https://pith.science/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/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":"2026-05-25T13:24:51Z","links":{"resolver":"https://pith.science/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY","bundle":"https://pith.science/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/bundle.json","state":"https://pith.science/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXJ4TQPZRCASRVVME7TJXBLJPY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ZXJ4TQPZRCASRVVME7TJXBLJPY","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":"138c3c523db66810c65bf50f4ee653aacd4f19b468cae26257e5230647ba9ba4","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-19T15:14:15Z","title_canon_sha256":"91271a24dc939bf833d74da69d2d63258679f6a7b94bb0c4fa6e76552ce9edc5"},"schema_version":"1.0","source":{"id":"1804.07219","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07219","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07219v2","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07219","created_at":"2026-05-18T00:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"ZXJ4TQPZRCAS","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZXJ4TQPZRCASRVVM","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZXJ4TQPZ","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:f7647e6bf8a7919f16c14b5bfc2ae0456a449717fbee523bc1eb2c873f4f7e8d","target":"graph","created_at":"2026-05-18T00:08:31Z","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":"The nuclear spin bath (NSB) dynamics and its quantum control are of importance for the storage and processing of quantum information within a semiconductor environment. In the presence of a carrier spin, primarily it is the hyperfine interaction that rules the high frequency NSB characteristics. Here, we first study the overall coherence decay and rephasings in a hyperfine-driven NSB through the temporal and spectral behaviors of the so-called Loschmidt echo (LE). Its dependence on the NSB size, initial polarization, and coupling inhomogeneity are separately investigated, which leads to a simp","authors_text":"Ceyhun Bulutay, Ekrem Taha G\\\"uldeste","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-19T15:14:15Z","title":"Loschmidt echo driven by hyperfine and electric-quadrupole interactions in nanoscale nuclear spin baths"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07219","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":"sha256:1231b84df1e416586adec3552d03996aaf7d52a393121fea216768ed9d0856da","target":"record","created_at":"2026-05-18T00:08:31Z","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":"138c3c523db66810c65bf50f4ee653aacd4f19b468cae26257e5230647ba9ba4","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-19T15:14:15Z","title_canon_sha256":"91271a24dc939bf833d74da69d2d63258679f6a7b94bb0c4fa6e76552ce9edc5"},"schema_version":"1.0","source":{"id":"1804.07219","kind":"arxiv","version":2}},"canonical_sha256":"cdd3c9c1f9888128d6ac27e69b85697e14f67750ee571ff0352cdce2e5615e77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdd3c9c1f9888128d6ac27e69b85697e14f67750ee571ff0352cdce2e5615e77","first_computed_at":"2026-05-18T00:08:31.030290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:31.030290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"STKxP6pJI4Qtf8XNqChowkA1PB016SeUHsVWlQqH8Si+GkQjk3PH1NPiA0dGmMhWAUbUJeY+R7DxnPx8A4m0Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:31.030710Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.07219","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1231b84df1e416586adec3552d03996aaf7d52a393121fea216768ed9d0856da","sha256:f7647e6bf8a7919f16c14b5bfc2ae0456a449717fbee523bc1eb2c873f4f7e8d"],"state_sha256":"128d4fccd820ed630222bef6c8cacadbbc6cd7f25fedd719f10eb89ad6e8c65e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8wEJr2NwiSs2YOX/L203N44b/9MLpN7evnyc+QSpsa+GQaM3LYwB//bgM/+hP+3Y4zpG5sxW6jppgfbDn4X4Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T13:24:51.267128Z","bundle_sha256":"992f42891f1fbcdeb9a72ee36691429525b1f6e4e715a3e4db537484f4aa6a12"}}