{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:22E3HWXXPEHFEMIL2G72GJIAT6","short_pith_number":"pith:22E3HWXX","canonical_record":{"source":{"id":"1109.4757","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-22T10:02:51Z","cross_cats_sorted":[],"title_canon_sha256":"91a56cab028ceb88e700b59b6e09eac49fd3e174f38029671c3f1dec2f8523a1","abstract_canon_sha256":"f58245a6bd30f3094ffd8b749a8d49df2b0b8525e776acec04c366b6d44138a2"},"schema_version":"1.0"},"canonical_sha256":"d689b3daf7790e52310bd1bfa325009f8e6cb3dbeb2bd9bc19c8599f4df29202","source":{"kind":"arxiv","id":"1109.4757","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4757","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4757v1","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4757","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"pith_short_12","alias_value":"22E3HWXXPEHF","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"22E3HWXXPEHFEMIL","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"22E3HWXX","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:22E3HWXXPEHFEMIL2G72GJIAT6","target":"record","payload":{"canonical_record":{"source":{"id":"1109.4757","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-22T10:02:51Z","cross_cats_sorted":[],"title_canon_sha256":"91a56cab028ceb88e700b59b6e09eac49fd3e174f38029671c3f1dec2f8523a1","abstract_canon_sha256":"f58245a6bd30f3094ffd8b749a8d49df2b0b8525e776acec04c366b6d44138a2"},"schema_version":"1.0"},"canonical_sha256":"d689b3daf7790e52310bd1bfa325009f8e6cb3dbeb2bd9bc19c8599f4df29202","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:26.694028Z","signature_b64":"xHxWipn28ngLfLGp0pwcV6C7xkQKzREKEzZwc8Fh2ZgQUAJfqMVfS5Pn2JlbeNI/q+zdBpdjjDxkzOKkFcOADA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d689b3daf7790e52310bd1bfa325009f8e6cb3dbeb2bd9bc19c8599f4df29202","last_reissued_at":"2026-05-18T02:00:26.693340Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:26.693340Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.4757","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5Bpge0xroO6l3d6m+e1mfh8Gvnxvb5tbSeOqwtyv6Gp/Pr0fSdidA5QpZT0U5AQGOQ6miF8ykBJpGw8E5G4WBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:45:45.370144Z"},"content_sha256":"c9fc43b31640bef1099c8277fec994c162f65b5b5f40efd8f43d487586efe0b3","schema_version":"1.0","event_id":"sha256:c9fc43b31640bef1099c8277fec994c162f65b5b5f40efd8f43d487586efe0b3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:22E3HWXXPEHFEMIL2G72GJIAT6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anti-bunched photons from a lateral light-emitting diode","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Christine A. Nicoll, David A. Ritchie, Fabio Beltram, Giorgio De Simoni, Harvey E. Beere, Tommaso Lunghi, Vincenzo Piazza","submitted_at":"2011-09-22T10:02:51Z","abstract_excerpt":"We demonstrate anti-bunched emission from a lateral-light emitting diode. Sub-Poissonian emission statistic, with a g$^{(2)}$(0)=0.7, is achieved at cryogenic temperature in the pulsed low-current regime, by exploiting electron injection through shallow impurities located in the diode depletion region. Thanks to its simple fabrication scheme and to its modulation bandwidth in the GHz range, we believe our devices are an appealing substitute for highly-attenuated lasers in existing quantum-key-distribution systems. Our devices outperform strongly-attenuated lasers in terms of multi-photon emiss"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4757","kind":"arxiv","version":1},"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":"2026-05-18T02:00:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QfzP4OrhHiOuCjFDhRjz013qvJXh3rA6Z+TjQavYGITV8SbLLdG7q04244KZmM3Oljz8aI6vtW5i34ANJBLoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T12:45:45.370513Z"},"content_sha256":"c41a41aa020dcde18b9fc4f875717b1fb909ba1f8fb951f497805d2e9951ce5a","schema_version":"1.0","event_id":"sha256:c41a41aa020dcde18b9fc4f875717b1fb909ba1f8fb951f497805d2e9951ce5a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/22E3HWXXPEHFEMIL2G72GJIAT6/bundle.json","state_url":"https://pith.science/pith/22E3HWXXPEHFEMIL2G72GJIAT6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/22E3HWXXPEHFEMIL2G72GJIAT6/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":"2026-06-03T12:45:45Z","links":{"resolver":"https://pith.science/pith/22E3HWXXPEHFEMIL2G72GJIAT6","bundle":"https://pith.science/pith/22E3HWXXPEHFEMIL2G72GJIAT6/bundle.json","state":"https://pith.science/pith/22E3HWXXPEHFEMIL2G72GJIAT6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/22E3HWXXPEHFEMIL2G72GJIAT6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:22E3HWXXPEHFEMIL2G72GJIAT6","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":"f58245a6bd30f3094ffd8b749a8d49df2b0b8525e776acec04c366b6d44138a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-22T10:02:51Z","title_canon_sha256":"91a56cab028ceb88e700b59b6e09eac49fd3e174f38029671c3f1dec2f8523a1"},"schema_version":"1.0","source":{"id":"1109.4757","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4757","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4757v1","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4757","created_at":"2026-05-18T02:00:26Z"},{"alias_kind":"pith_short_12","alias_value":"22E3HWXXPEHF","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"22E3HWXXPEHFEMIL","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"22E3HWXX","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:c41a41aa020dcde18b9fc4f875717b1fb909ba1f8fb951f497805d2e9951ce5a","target":"graph","created_at":"2026-05-18T02:00:26Z","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 anti-bunched emission from a lateral-light emitting diode. Sub-Poissonian emission statistic, with a g$^{(2)}$(0)=0.7, is achieved at cryogenic temperature in the pulsed low-current regime, by exploiting electron injection through shallow impurities located in the diode depletion region. Thanks to its simple fabrication scheme and to its modulation bandwidth in the GHz range, we believe our devices are an appealing substitute for highly-attenuated lasers in existing quantum-key-distribution systems. Our devices outperform strongly-attenuated lasers in terms of multi-photon emiss","authors_text":"Christine A. Nicoll, David A. Ritchie, Fabio Beltram, Giorgio De Simoni, Harvey E. Beere, Tommaso Lunghi, Vincenzo Piazza","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-22T10:02:51Z","title":"Anti-bunched photons from a lateral light-emitting diode"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4757","kind":"arxiv","version":1},"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:c9fc43b31640bef1099c8277fec994c162f65b5b5f40efd8f43d487586efe0b3","target":"record","created_at":"2026-05-18T02:00:26Z","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":"f58245a6bd30f3094ffd8b749a8d49df2b0b8525e776acec04c366b6d44138a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-22T10:02:51Z","title_canon_sha256":"91a56cab028ceb88e700b59b6e09eac49fd3e174f38029671c3f1dec2f8523a1"},"schema_version":"1.0","source":{"id":"1109.4757","kind":"arxiv","version":1}},"canonical_sha256":"d689b3daf7790e52310bd1bfa325009f8e6cb3dbeb2bd9bc19c8599f4df29202","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d689b3daf7790e52310bd1bfa325009f8e6cb3dbeb2bd9bc19c8599f4df29202","first_computed_at":"2026-05-18T02:00:26.693340Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:26.693340Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xHxWipn28ngLfLGp0pwcV6C7xkQKzREKEzZwc8Fh2ZgQUAJfqMVfS5Pn2JlbeNI/q+zdBpdjjDxkzOKkFcOADA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:26.694028Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4757","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9fc43b31640bef1099c8277fec994c162f65b5b5f40efd8f43d487586efe0b3","sha256:c41a41aa020dcde18b9fc4f875717b1fb909ba1f8fb951f497805d2e9951ce5a"],"state_sha256":"ffdb5c650581877e31082137953b79e69b007be3818f8cf2d9a9998de287526a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p/OgMIEHJg2I060hMwxCmiEDibppzgos3HLL3WOK0OSaWPXTtr1TBTyAHi3yHDH3+xc1AMF0rLEzJp8hLW80Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T12:45:45.372540Z","bundle_sha256":"979ee15262252760733836e236f2fcc52d74a512faf168a6ca9944e3c99d91bd"}}