{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:WVCNCRJAH5YJU5DCDLH4WHXTRO","short_pith_number":"pith:WVCNCRJA","canonical_record":{"source":{"id":"1712.01428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-05T00:44:36Z","cross_cats_sorted":[],"title_canon_sha256":"5f8e674e65359f8244f6866a716e638af7725c334aef57a81eec6ae4326a8351","abstract_canon_sha256":"26a435bfd4e8c0520b7f33340e00265ef24b60343e92d44f0ab690a6adf0a0b8"},"schema_version":"1.0"},"canonical_sha256":"b544d145203f709a74621acfcb1ef38b82eea57e2b45838198b6d200dae8eee9","source":{"kind":"arxiv","id":"1712.01428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.01428","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"arxiv_version","alias_value":"1712.01428v1","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01428","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"pith_short_12","alias_value":"WVCNCRJAH5YJ","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WVCNCRJAH5YJU5DC","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WVCNCRJA","created_at":"2026-05-18T12:31:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:WVCNCRJAH5YJU5DCDLH4WHXTRO","target":"record","payload":{"canonical_record":{"source":{"id":"1712.01428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-05T00:44:36Z","cross_cats_sorted":[],"title_canon_sha256":"5f8e674e65359f8244f6866a716e638af7725c334aef57a81eec6ae4326a8351","abstract_canon_sha256":"26a435bfd4e8c0520b7f33340e00265ef24b60343e92d44f0ab690a6adf0a0b8"},"schema_version":"1.0"},"canonical_sha256":"b544d145203f709a74621acfcb1ef38b82eea57e2b45838198b6d200dae8eee9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:56.730378Z","signature_b64":"wL7tDPazr6HSpq/17AMIqspl7D0Vjtao2204EcJ98F6t73V9J6N9PxKUnuCzmpyfM0nOzWCJ15q1ELx4r26dCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b544d145203f709a74621acfcb1ef38b82eea57e2b45838198b6d200dae8eee9","last_reissued_at":"2026-05-18T00:27:56.729713Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:56.729713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.01428","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":"2026-05-18T00:27:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yRd0NRQiIWbKmjlyRahMV0q2XTbim54/ncYzbf6vLlDZcY5Ll67rMlUJKZaPPiJcmNzKEBS6MPp/8npgDRomBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:51:12.491952Z"},"content_sha256":"a0fa72e7f1bb37329503ebc81c38f2a5e2b2a23e99293c4fd40fbbc3e44aed49","schema_version":"1.0","event_id":"sha256:a0fa72e7f1bb37329503ebc81c38f2a5e2b2a23e99293c4fd40fbbc3e44aed49"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:WVCNCRJAH5YJU5DCDLH4WHXTRO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental study of quantum random number generator based on two independent lasers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Feihu Xu, Shi-Hai Sun","submitted_at":"2017-12-05T00:44:36Z","abstract_excerpt":"Quantum random number generator (QRNG) can produce true randomness by utilizing the inherent probabilistic nature of quantum mechanics. Recently, the spontaneous-emission quantum phase noise of the laser has been widely deployed for QRNG, due to its high rate, low cost and the feasibility of chip-scale integration. Here, we perform a comprehensive experimental study of phase-noise based QRNG with two independent lasers, each of which operates in either continuous-wave (CW) or pulsed mode. We implement QRNGs by operating the two lasers in three configurations, namely CW+CW, CW+pulsed and pulsed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01428","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":"2026-05-18T00:27:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RosM0eEWqISbjacDoEU3D8Oo9xPf1HDektL8eMDMyrPjYEsfGuRTeGEyNSjBX3e2o2EDiaNq7Xk1Teb2gEP1Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:51:12.492599Z"},"content_sha256":"54a8bed819858f903c26bfbe873c5cc05730e814e75cdb57d03e3ab78faf46f8","schema_version":"1.0","event_id":"sha256:54a8bed819858f903c26bfbe873c5cc05730e814e75cdb57d03e3ab78faf46f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/bundle.json","state_url":"https://pith.science/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/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":"2026-05-28T21:51:12Z","links":{"resolver":"https://pith.science/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO","bundle":"https://pith.science/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/bundle.json","state":"https://pith.science/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WVCNCRJAH5YJU5DCDLH4WHXTRO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:WVCNCRJAH5YJU5DCDLH4WHXTRO","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":"26a435bfd4e8c0520b7f33340e00265ef24b60343e92d44f0ab690a6adf0a0b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-05T00:44:36Z","title_canon_sha256":"5f8e674e65359f8244f6866a716e638af7725c334aef57a81eec6ae4326a8351"},"schema_version":"1.0","source":{"id":"1712.01428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.01428","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"arxiv_version","alias_value":"1712.01428v1","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01428","created_at":"2026-05-18T00:27:56Z"},{"alias_kind":"pith_short_12","alias_value":"WVCNCRJAH5YJ","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WVCNCRJAH5YJU5DC","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WVCNCRJA","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:54a8bed819858f903c26bfbe873c5cc05730e814e75cdb57d03e3ab78faf46f8","target":"graph","created_at":"2026-05-18T00:27:56Z","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":"Quantum random number generator (QRNG) can produce true randomness by utilizing the inherent probabilistic nature of quantum mechanics. Recently, the spontaneous-emission quantum phase noise of the laser has been widely deployed for QRNG, due to its high rate, low cost and the feasibility of chip-scale integration. Here, we perform a comprehensive experimental study of phase-noise based QRNG with two independent lasers, each of which operates in either continuous-wave (CW) or pulsed mode. We implement QRNGs by operating the two lasers in three configurations, namely CW+CW, CW+pulsed and pulsed","authors_text":"Feihu Xu, Shi-Hai Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-05T00:44:36Z","title":"Experimental study of quantum random number generator based on two independent lasers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01428","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:a0fa72e7f1bb37329503ebc81c38f2a5e2b2a23e99293c4fd40fbbc3e44aed49","target":"record","created_at":"2026-05-18T00:27:56Z","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":"26a435bfd4e8c0520b7f33340e00265ef24b60343e92d44f0ab690a6adf0a0b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-05T00:44:36Z","title_canon_sha256":"5f8e674e65359f8244f6866a716e638af7725c334aef57a81eec6ae4326a8351"},"schema_version":"1.0","source":{"id":"1712.01428","kind":"arxiv","version":1}},"canonical_sha256":"b544d145203f709a74621acfcb1ef38b82eea57e2b45838198b6d200dae8eee9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b544d145203f709a74621acfcb1ef38b82eea57e2b45838198b6d200dae8eee9","first_computed_at":"2026-05-18T00:27:56.729713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:56.729713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wL7tDPazr6HSpq/17AMIqspl7D0Vjtao2204EcJ98F6t73V9J6N9PxKUnuCzmpyfM0nOzWCJ15q1ELx4r26dCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:56.730378Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.01428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0fa72e7f1bb37329503ebc81c38f2a5e2b2a23e99293c4fd40fbbc3e44aed49","sha256:54a8bed819858f903c26bfbe873c5cc05730e814e75cdb57d03e3ab78faf46f8"],"state_sha256":"513a2ef2ede2788e7c389d3aaaf666b7dda0c89797a9da6db3eb4f8ce5e5d425"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k0y4KL/qyKHITr3566EufdsKP5gvydTVk4bDlPvnoajfEk3HErphMOPcsoMP3wvXn1m4aCGrANuNaTkJOab9BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:51:12.495763Z","bundle_sha256":"3bbee9a88fa900b37cdffb0d72611b00d429f41f226900c779d4021d5532bccb"}}