{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:LPTNSFNMMZUOWW3X4FNPZC36JQ","short_pith_number":"pith:LPTNSFNM","canonical_record":{"source":{"id":"1706.05164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-16T07:20:32Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"fec9e6a7bfd570d558d5d19f525ea21c91bcf2a6aded565f403d34a4f77bda78","abstract_canon_sha256":"dad620c423f2ebafcdc8502a074421e38178cc381988e56bfa71469ff12b1934"},"schema_version":"1.0"},"canonical_sha256":"5be6d915ac6668eb5b77e15afc8b7e4c02be4944428725bef4ca45cfe1c0364a","source":{"kind":"arxiv","id":"1706.05164","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05164","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05164v2","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05164","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"pith_short_12","alias_value":"LPTNSFNMMZUO","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LPTNSFNMMZUOWW3X","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LPTNSFNM","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:LPTNSFNMMZUOWW3X4FNPZC36JQ","target":"record","payload":{"canonical_record":{"source":{"id":"1706.05164","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-16T07:20:32Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"fec9e6a7bfd570d558d5d19f525ea21c91bcf2a6aded565f403d34a4f77bda78","abstract_canon_sha256":"dad620c423f2ebafcdc8502a074421e38178cc381988e56bfa71469ff12b1934"},"schema_version":"1.0"},"canonical_sha256":"5be6d915ac6668eb5b77e15afc8b7e4c02be4944428725bef4ca45cfe1c0364a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:46.417609Z","signature_b64":"CpbBwTxBTjrddfSRQtuvPwFNoV9mWea8jylQBsW9fRvBE1fg5RcLOe3A5DKiJCdbBZL+Oz6CV0HEgJlSg+kwCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5be6d915ac6668eb5b77e15afc8b7e4c02be4944428725bef4ca45cfe1c0364a","last_reissued_at":"2026-05-18T00:27:46.417100Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:46.417100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.05164","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":"2026-05-18T00:27:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O3jJxzocxK8ctw0p60NbofW8o6DkRIRS4imNzN+HcbOBR82AgXeLeVAIMjGNqjq7yMbVz1R9g6LnIf9Cn1tUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:21:12.969207Z"},"content_sha256":"3effade6efdc72d8aa72a5c9d862e289e3a6362602731cd6fc921969c68ada93","schema_version":"1.0","event_id":"sha256:3effade6efdc72d8aa72a5c9d862e289e3a6362602731cd6fc921969c68ada93"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:LPTNSFNMMZUOWW3X4FNPZC36JQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accessing the dark exciton spin in deterministic quantum-dot microlenses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Alexander Thoma, Andre Strittmatter, Dan Cogan, David Gershoni, Emma R. Schmidgall, Ido Schwartz, Jan-Hindrik Schulze, Liron Gantz, Manuel Gschrey, Max Strau\\ss, Peter Schnauber, Stephan Reitzenstein, Sven Rodt, Tobias Heindel","submitted_at":"2017-06-16T07:20:32Z","abstract_excerpt":"The dark exciton state in semiconductor quantum dots constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state based quantum information architectures. In this work, we exploit deterministically fabricated QD microlenses with enhanced photon extraction, to optically prepare and readout the dark exciton spin and observe its coherent precession. The optical access to the dark exciton is provided via spin-blockaded metastable biexciton states acting as heralding state, which are identified deploying polarization-sensitive spectr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05164","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":"2026-05-18T00:27:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vh3GBZ6XcTYyI+znX2XPm0LRfr/EsFVmitR6yqOVTSWUnpxrsj5pWpo+miiPODiJBeL6xUL2ljVDvSe3kyyTCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T17:21:12.969611Z"},"content_sha256":"1b2ee467dcc5924516aac6b7d2fddce20d35ea56985f90a1e4bed30509e2d63a","schema_version":"1.0","event_id":"sha256:1b2ee467dcc5924516aac6b7d2fddce20d35ea56985f90a1e4bed30509e2d63a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/bundle.json","state_url":"https://pith.science/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/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":"2026-05-24T17:21:12Z","links":{"resolver":"https://pith.science/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ","bundle":"https://pith.science/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/bundle.json","state":"https://pith.science/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LPTNSFNMMZUOWW3X4FNPZC36JQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:LPTNSFNMMZUOWW3X4FNPZC36JQ","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":"dad620c423f2ebafcdc8502a074421e38178cc381988e56bfa71469ff12b1934","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-16T07:20:32Z","title_canon_sha256":"fec9e6a7bfd570d558d5d19f525ea21c91bcf2a6aded565f403d34a4f77bda78"},"schema_version":"1.0","source":{"id":"1706.05164","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05164","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05164v2","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05164","created_at":"2026-05-18T00:27:46Z"},{"alias_kind":"pith_short_12","alias_value":"LPTNSFNMMZUO","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LPTNSFNMMZUOWW3X","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LPTNSFNM","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:1b2ee467dcc5924516aac6b7d2fddce20d35ea56985f90a1e4bed30509e2d63a","target":"graph","created_at":"2026-05-18T00:27:46Z","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 dark exciton state in semiconductor quantum dots constitutes a long-lived solid-state qubit which has the potential to play an important role in implementations of solid-state based quantum information architectures. In this work, we exploit deterministically fabricated QD microlenses with enhanced photon extraction, to optically prepare and readout the dark exciton spin and observe its coherent precession. The optical access to the dark exciton is provided via spin-blockaded metastable biexciton states acting as heralding state, which are identified deploying polarization-sensitive spectr","authors_text":"Alexander Thoma, Andre Strittmatter, Dan Cogan, David Gershoni, Emma R. Schmidgall, Ido Schwartz, Jan-Hindrik Schulze, Liron Gantz, Manuel Gschrey, Max Strau\\ss, Peter Schnauber, Stephan Reitzenstein, Sven Rodt, Tobias Heindel","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-16T07:20:32Z","title":"Accessing the dark exciton spin in deterministic quantum-dot microlenses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05164","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":"sha256:3effade6efdc72d8aa72a5c9d862e289e3a6362602731cd6fc921969c68ada93","target":"record","created_at":"2026-05-18T00:27:46Z","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":"dad620c423f2ebafcdc8502a074421e38178cc381988e56bfa71469ff12b1934","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-16T07:20:32Z","title_canon_sha256":"fec9e6a7bfd570d558d5d19f525ea21c91bcf2a6aded565f403d34a4f77bda78"},"schema_version":"1.0","source":{"id":"1706.05164","kind":"arxiv","version":2}},"canonical_sha256":"5be6d915ac6668eb5b77e15afc8b7e4c02be4944428725bef4ca45cfe1c0364a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5be6d915ac6668eb5b77e15afc8b7e4c02be4944428725bef4ca45cfe1c0364a","first_computed_at":"2026-05-18T00:27:46.417100Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:46.417100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CpbBwTxBTjrddfSRQtuvPwFNoV9mWea8jylQBsW9fRvBE1fg5RcLOe3A5DKiJCdbBZL+Oz6CV0HEgJlSg+kwCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:46.417609Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.05164","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3effade6efdc72d8aa72a5c9d862e289e3a6362602731cd6fc921969c68ada93","sha256:1b2ee467dcc5924516aac6b7d2fddce20d35ea56985f90a1e4bed30509e2d63a"],"state_sha256":"b3cc5b4f2e3b8b22ce130ab616bd950137cae96c5d3690b71ed6d60c09bcce9e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jqvt1ECYR6sbpO/2fEFwufhNOWOHezCQEWSKSXcVCO+i5Y1X9ly6GrbH/dKoJ+UgU0oaWw7kbg2O1Tl8iJwEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T17:21:12.972338Z","bundle_sha256":"4623fb82faa2b3fa05412f51e554e90b023fce4277b8c466f834c369bd950f67"}}