{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:XO7DYFL7DQW4G2MJBDYKLI6JO5","short_pith_number":"pith:XO7DYFL7","canonical_record":{"source":{"id":"1009.5463","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T06:42:23Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"420b8c91ade74b0b4138ccfec309974748c6bf983b25172af2ecb1b13721fb2c","abstract_canon_sha256":"7e25809b44dd5d7175c248fb9dc4e25fc7f1a6585c7ee302110aae00f7d031c8"},"schema_version":"1.0"},"canonical_sha256":"bbbe3c157f1c2dc3698908f0a5a3c97767aae005d48598cafeb9332d23d15016","source":{"kind":"arxiv","id":"1009.5463","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5463","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5463v2","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5463","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"pith_short_12","alias_value":"XO7DYFL7DQW4","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XO7DYFL7DQW4G2MJ","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XO7DYFL7","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:XO7DYFL7DQW4G2MJBDYKLI6JO5","target":"record","payload":{"canonical_record":{"source":{"id":"1009.5463","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T06:42:23Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"420b8c91ade74b0b4138ccfec309974748c6bf983b25172af2ecb1b13721fb2c","abstract_canon_sha256":"7e25809b44dd5d7175c248fb9dc4e25fc7f1a6585c7ee302110aae00f7d031c8"},"schema_version":"1.0"},"canonical_sha256":"bbbe3c157f1c2dc3698908f0a5a3c97767aae005d48598cafeb9332d23d15016","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:00:16.102889Z","signature_b64":"5oNycya206gTuN04W8/KvaTCcECTv4MtYRkYNOU+k/UjHatlPVlzGDSvTdsp45NUbw/Yh/eFT5OunOPawZADBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbbe3c157f1c2dc3698908f0a5a3c97767aae005d48598cafeb9332d23d15016","last_reissued_at":"2026-05-18T04:00:16.102104Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:00:16.102104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.5463","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":"2026-05-18T04:00:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H7c+QDm21gDoCy+I15Jrojd4MteIjY+1wtlBjZrZ0g9AUgdMD2LeRcFzKbHsXKdBfFfAAdIYeDLN0ENwWDUpAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:50:50.685121Z"},"content_sha256":"4b70f1b200f1827e2a3c80a182ba9ccfdaebee5dad47983b54baeddce8ad36d0","schema_version":"1.0","event_id":"sha256:4b70f1b200f1827e2a3c80a182ba9ccfdaebee5dad47983b54baeddce8ad36d0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:XO7DYFL7DQW4G2MJBDYKLI6JO5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent optical writing and reading of the exciton spin state in single quantum dots","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"D. Galushko, D. Gershoni, E. Poem, P. M. Petroff, R. Presman, S. Khatsevich, Y. Benny, Y. Kodriano","submitted_at":"2010-09-28T06:42:23Z","abstract_excerpt":"We demonstrate a one to one correspondence between the polarization state of a light pulse tuned to neutral exciton resonances of single semiconductor quantum dots and the spin state of the exciton that it photogenerates. This is accomplished using two variably polarized and independently tuned picosecond laser pulses. The first \"writes\" the spin state of the resonantly excited exciton. The second is tuned to biexcitonic resonances, and its absorption is used to \"read\" the exciton spin state. The absorption of the second pulse depends on its polarization relative to the exciton spin direction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5463","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":"2026-05-18T04:00:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QlKFzD+UX69bVV3QN1BSUWr6Pe0yIuvHXVFz9U7L6//ZUi3gbCZleAV6rj9ELsw1FczClCucMCENVN8rc03OBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:50:50.685492Z"},"content_sha256":"fea571dabcae3a15f09850bffbe0b9445a6d49038b1572b60131e1a8e798f675","schema_version":"1.0","event_id":"sha256:fea571dabcae3a15f09850bffbe0b9445a6d49038b1572b60131e1a8e798f675"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/bundle.json","state_url":"https://pith.science/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/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":"2026-05-28T09:50:50Z","links":{"resolver":"https://pith.science/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5","bundle":"https://pith.science/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/bundle.json","state":"https://pith.science/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XO7DYFL7DQW4G2MJBDYKLI6JO5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:XO7DYFL7DQW4G2MJBDYKLI6JO5","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":"7e25809b44dd5d7175c248fb9dc4e25fc7f1a6585c7ee302110aae00f7d031c8","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T06:42:23Z","title_canon_sha256":"420b8c91ade74b0b4138ccfec309974748c6bf983b25172af2ecb1b13721fb2c"},"schema_version":"1.0","source":{"id":"1009.5463","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5463","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5463v2","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5463","created_at":"2026-05-18T04:00:16Z"},{"alias_kind":"pith_short_12","alias_value":"XO7DYFL7DQW4","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XO7DYFL7DQW4G2MJ","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XO7DYFL7","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:fea571dabcae3a15f09850bffbe0b9445a6d49038b1572b60131e1a8e798f675","target":"graph","created_at":"2026-05-18T04:00:16Z","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 demonstrate a one to one correspondence between the polarization state of a light pulse tuned to neutral exciton resonances of single semiconductor quantum dots and the spin state of the exciton that it photogenerates. This is accomplished using two variably polarized and independently tuned picosecond laser pulses. The first \"writes\" the spin state of the resonantly excited exciton. The second is tuned to biexcitonic resonances, and its absorption is used to \"read\" the exciton spin state. The absorption of the second pulse depends on its polarization relative to the exciton spin direction.","authors_text":"D. Galushko, D. Gershoni, E. Poem, P. M. Petroff, R. Presman, S. Khatsevich, Y. Benny, Y. Kodriano","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T06:42:23Z","title":"Coherent optical writing and reading of the exciton spin state in single quantum dots"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5463","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":"sha256:4b70f1b200f1827e2a3c80a182ba9ccfdaebee5dad47983b54baeddce8ad36d0","target":"record","created_at":"2026-05-18T04:00:16Z","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":"7e25809b44dd5d7175c248fb9dc4e25fc7f1a6585c7ee302110aae00f7d031c8","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-09-28T06:42:23Z","title_canon_sha256":"420b8c91ade74b0b4138ccfec309974748c6bf983b25172af2ecb1b13721fb2c"},"schema_version":"1.0","source":{"id":"1009.5463","kind":"arxiv","version":2}},"canonical_sha256":"bbbe3c157f1c2dc3698908f0a5a3c97767aae005d48598cafeb9332d23d15016","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbbe3c157f1c2dc3698908f0a5a3c97767aae005d48598cafeb9332d23d15016","first_computed_at":"2026-05-18T04:00:16.102104Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:16.102104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5oNycya206gTuN04W8/KvaTCcECTv4MtYRkYNOU+k/UjHatlPVlzGDSvTdsp45NUbw/Yh/eFT5OunOPawZADBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:16.102889Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5463","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b70f1b200f1827e2a3c80a182ba9ccfdaebee5dad47983b54baeddce8ad36d0","sha256:fea571dabcae3a15f09850bffbe0b9445a6d49038b1572b60131e1a8e798f675"],"state_sha256":"ec0dc7ce9433f1e44220b256a3a6d8fc30691230426def7edc1a7b911ad8d550"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnH/P3QnBKRpIzW00WAALX42XsaLWBIWwd/JroQ5tD9/FLJgPIfUBMbbR95BATc8Ooquzd49cnu2aKtiMCY2Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T09:50:50.687362Z","bundle_sha256":"f7c6c24d6e8dc1acc65c540c0b293ac9f3b8ee82d3dd52579af6e7eae18e4670"}}