{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:7FN75FGRVJXWR7KWT72BGG3BR7","short_pith_number":"pith:7FN75FGR","canonical_record":{"source":{"id":"2102.00283","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2021-01-30T18:27:10Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0234a912c83f1a1073fbdb1160149cc2eb619d9405e2b0a556fc7a0082bbe02d","abstract_canon_sha256":"a2b5a572542e7061f03c5de2f4f9c533dc9a4d6cfcf9c675ac0b2aa1f81e1c38"},"schema_version":"1.0"},"canonical_sha256":"f95bfe94d1aa6f68fd569ff4131b618fcc1d71c004a9312d447f215fe654dbef","source":{"kind":"arxiv","id":"2102.00283","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.00283","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"arxiv_version","alias_value":"2102.00283v2","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.00283","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_12","alias_value":"7FN75FGRVJXW","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_16","alias_value":"7FN75FGRVJXWR7KW","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_8","alias_value":"7FN75FGR","created_at":"2026-07-05T04:22:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:7FN75FGRVJXWR7KWT72BGG3BR7","target":"record","payload":{"canonical_record":{"source":{"id":"2102.00283","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2021-01-30T18:27:10Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0234a912c83f1a1073fbdb1160149cc2eb619d9405e2b0a556fc7a0082bbe02d","abstract_canon_sha256":"a2b5a572542e7061f03c5de2f4f9c533dc9a4d6cfcf9c675ac0b2aa1f81e1c38"},"schema_version":"1.0"},"canonical_sha256":"f95bfe94d1aa6f68fd569ff4131b618fcc1d71c004a9312d447f215fe654dbef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:22:50.136218Z","signature_b64":"QZGWwrswxgdvPtXtYmrtaEXbG3TvERFrPz12nt+0CGt64LiuA49UU9ip6xuCp2GCTmH3cNyIWBLFn9Ey6aZdAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f95bfe94d1aa6f68fd569ff4131b618fcc1d71c004a9312d447f215fe654dbef","last_reissued_at":"2026-07-05T04:22:50.135671Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:22:50.135671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2102.00283","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":"2026-07-05T04:22:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JYhELI5z1J4D7JvlfNl3/TVYzsxccovNYy7o/fip+CTINVnamPpj3T5bPtxgmmbUNIr7LxNHdPQVBYKFGP21AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:05:52.403852Z"},"content_sha256":"d3f1e043ee0a336490e2d1293da2145cd17a729919262c11cecbf853b7c88f9b","schema_version":"1.0","event_id":"sha256:d3f1e043ee0a336490e2d1293da2145cd17a729919262c11cecbf853b7c88f9b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:7FN75FGRVJXWR7KWT72BGG3BR7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Demonstration and modelling of time-bin entangled photons from a quantum dot in a nanowire","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Dan Dalacu, Florian Kappe, Gregor Weihs, Helmut Ritsch, Laurin Ostermann, Maximilian Prilm\\\"uller, Philip J. Poole, Philipp Aumann, Wolfgang Lechner","submitted_at":"2021-01-30T18:27:10Z","abstract_excerpt":"Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton-exciton cascade. We show that this scheme can be implemented for a dot embedded in an InP nanowire. The underlying physical mechanisms can be represented and quantitatively analyzed by an effective three-level open system master equation. Simulation parameters including decay and intensity dependent dephasing rates are extracted from experimental data, which in turn let us predict the resulting entanglement and o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.00283","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2102.00283/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":"2026-07-05T04:22:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MSiePNSn4efdALZUJUFb44lpoXWaCfGlVnBIj2RtAfzD49cTQD4p0hcwOawMS1kaIpsqJubH1wh1r3fgyCaUCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:05:52.404222Z"},"content_sha256":"d0bcbe400ebf8bfd8d83017e5e0f6ae77d89a229a9313c76fffb3f5ee9574264","schema_version":"1.0","event_id":"sha256:d0bcbe400ebf8bfd8d83017e5e0f6ae77d89a229a9313c76fffb3f5ee9574264"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7FN75FGRVJXWR7KWT72BGG3BR7/bundle.json","state_url":"https://pith.science/pith/7FN75FGRVJXWR7KWT72BGG3BR7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7FN75FGRVJXWR7KWT72BGG3BR7/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":"2026-07-07T11:05:52Z","links":{"resolver":"https://pith.science/pith/7FN75FGRVJXWR7KWT72BGG3BR7","bundle":"https://pith.science/pith/7FN75FGRVJXWR7KWT72BGG3BR7/bundle.json","state":"https://pith.science/pith/7FN75FGRVJXWR7KWT72BGG3BR7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7FN75FGRVJXWR7KWT72BGG3BR7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:7FN75FGRVJXWR7KWT72BGG3BR7","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":"a2b5a572542e7061f03c5de2f4f9c533dc9a4d6cfcf9c675ac0b2aa1f81e1c38","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2021-01-30T18:27:10Z","title_canon_sha256":"0234a912c83f1a1073fbdb1160149cc2eb619d9405e2b0a556fc7a0082bbe02d"},"schema_version":"1.0","source":{"id":"2102.00283","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.00283","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"arxiv_version","alias_value":"2102.00283v2","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.00283","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_12","alias_value":"7FN75FGRVJXW","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_16","alias_value":"7FN75FGRVJXWR7KW","created_at":"2026-07-05T04:22:50Z"},{"alias_kind":"pith_short_8","alias_value":"7FN75FGR","created_at":"2026-07-05T04:22:50Z"}],"graph_snapshots":[{"event_id":"sha256:d0bcbe400ebf8bfd8d83017e5e0f6ae77d89a229a9313c76fffb3f5ee9574264","target":"graph","created_at":"2026-07-05T04:22:50Z","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/2102.00283/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Resonant excitation of the biexciton state in an InAsP quantum dot by a phase-coherent pair of picosecond pulses allows preparing time-bin entangled pairs of photons via the biexciton-exciton cascade. We show that this scheme can be implemented for a dot embedded in an InP nanowire. The underlying physical mechanisms can be represented and quantitatively analyzed by an effective three-level open system master equation. Simulation parameters including decay and intensity dependent dephasing rates are extracted from experimental data, which in turn let us predict the resulting entanglement and o","authors_text":"Dan Dalacu, Florian Kappe, Gregor Weihs, Helmut Ritsch, Laurin Ostermann, Maximilian Prilm\\\"uller, Philip J. Poole, Philipp Aumann, Wolfgang Lechner","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2021-01-30T18:27:10Z","title":"Demonstration and modelling of time-bin entangled photons from a quantum dot in a nanowire"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.00283","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:d3f1e043ee0a336490e2d1293da2145cd17a729919262c11cecbf853b7c88f9b","target":"record","created_at":"2026-07-05T04:22:50Z","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":"a2b5a572542e7061f03c5de2f4f9c533dc9a4d6cfcf9c675ac0b2aa1f81e1c38","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"quant-ph","submitted_at":"2021-01-30T18:27:10Z","title_canon_sha256":"0234a912c83f1a1073fbdb1160149cc2eb619d9405e2b0a556fc7a0082bbe02d"},"schema_version":"1.0","source":{"id":"2102.00283","kind":"arxiv","version":2}},"canonical_sha256":"f95bfe94d1aa6f68fd569ff4131b618fcc1d71c004a9312d447f215fe654dbef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f95bfe94d1aa6f68fd569ff4131b618fcc1d71c004a9312d447f215fe654dbef","first_computed_at":"2026-07-05T04:22:50.135671Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:22:50.135671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QZGWwrswxgdvPtXtYmrtaEXbG3TvERFrPz12nt+0CGt64LiuA49UU9ip6xuCp2GCTmH3cNyIWBLFn9Ey6aZdAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:22:50.136218Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.00283","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3f1e043ee0a336490e2d1293da2145cd17a729919262c11cecbf853b7c88f9b","sha256:d0bcbe400ebf8bfd8d83017e5e0f6ae77d89a229a9313c76fffb3f5ee9574264"],"state_sha256":"ace6f00345ee9a1c69f29481629d853fcf209227cb06dfadacacd2a3b8f05f37"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VqgnOH1UzEgynfp8iIXRm9k2d+UQ0OoE3jXnmsKOImRnapHd7MaKAOf3a0u7xnwK2YHekmqezqM+7nqLJhj2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:05:52.406178Z","bundle_sha256":"617ae4f39f86044b69e127710feb7047ff347f3a61103a6e21eadc0b7a799bc9"}}