{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:LCZKM7G7K46LLDNBNPXEHEOETA","short_pith_number":"pith:LCZKM7G7","canonical_record":{"source":{"id":"2208.13186","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-28T09:36:32Z","cross_cats_sorted":["cs.ET","physics.optics"],"title_canon_sha256":"ce5f329cac712b1973504ab017432355484c275d53af2f93ae3bfa51cbd0a8f4","abstract_canon_sha256":"5a3d3b4dadf74b988c47f49f8651d07d84706d969c98c9b0b1a56090f926e50f"},"schema_version":"1.0"},"canonical_sha256":"58b2a67cdf573cb58da16bee4391c4980300051bbc8afe13bde922467459b581","source":{"kind":"arxiv","id":"2208.13186","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.13186","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"arxiv_version","alias_value":"2208.13186v1","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.13186","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_12","alias_value":"LCZKM7G7K46L","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_16","alias_value":"LCZKM7G7K46LLDNB","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_8","alias_value":"LCZKM7G7","created_at":"2026-07-05T04:52:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:LCZKM7G7K46LLDNBNPXEHEOETA","target":"record","payload":{"canonical_record":{"source":{"id":"2208.13186","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-28T09:36:32Z","cross_cats_sorted":["cs.ET","physics.optics"],"title_canon_sha256":"ce5f329cac712b1973504ab017432355484c275d53af2f93ae3bfa51cbd0a8f4","abstract_canon_sha256":"5a3d3b4dadf74b988c47f49f8651d07d84706d969c98c9b0b1a56090f926e50f"},"schema_version":"1.0"},"canonical_sha256":"58b2a67cdf573cb58da16bee4391c4980300051bbc8afe13bde922467459b581","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:52:04.838597Z","signature_b64":"2DscBJ8HMJ0YX7LGaXu81zh2mTjAegOwhmL+MQVrGZHMepmT/SBZmI1QrigBVSNUUCJfW2pjxX1L524EBnCjDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58b2a67cdf573cb58da16bee4391c4980300051bbc8afe13bde922467459b581","last_reissued_at":"2026-07-05T04:52:04.838180Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:52:04.838180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.13186","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":"2026-07-05T04:52:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YMxt/k5DPwwYIm8j439Jh9kM8Om+PsDX6JAhEOcXt58jP6TGJAQS4cNdvdijceTIJ/kpC4ZkYJv9l1MrVTdcBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:10:58.171182Z"},"content_sha256":"c4e0777fcdab7d3268a3579e4c421e72c69270878d8bdad75195eac9a7d74bac","schema_version":"1.0","event_id":"sha256:c4e0777fcdab7d3268a3579e4c421e72c69270878d8bdad75195eac9a7d74bac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:LCZKM7G7K46LLDNBNPXEHEOETA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large-scale full-programmable quantum walk and its applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.ET","physics.optics"],"primary_cat":"quant-ph","authors_text":"Anqi Huang, Chunlin Yu, Dongyang Wang, Guangyao Huang, Jiangfang Ding, Junjie Wu, Junwei Zhan, Kai Lu, Mingtang Deng, Ping Xu, Qilin Zheng, Ru Zeng, Shichuan Xue, Weixia Xu, Weixu Shi, Xiang Fu, Xiaogang Qiang, Xuejun Yang, Yang Wang, Yingwen Liu, Yizhi Wang, Yong Liu, Yuzhen Zheng, Zhihao Wu, Zihao Wang","submitted_at":"2022-08-28T09:36:32Z","abstract_excerpt":"With photonics, the quantum computational advantage has been demonstrated on the task of boson sampling. Next, developing quantum-enhanced approaches for practical problems becomes one of the top priorities for photonic systems. Quantum walks are powerful kernels for developing new and useful quantum algorithms. Here we realize large-scale quantum walks using a fully programmable photonic quantum computing system. The system integrates a silicon quantum photonic chip, enabling the simulation of quantum walk dynamics on graphs with up to 400 vertices and possessing full programmability over qua"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.13186","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2208.13186/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":"2026-07-05T04:52:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tf5/VwYMqjedTJlJ0XwbVK0/ecPq78hBkK0QpWW7pkskDi19E4vXEQMAKYLsriSdk6cwS1tEKOeGEKxaGlIvBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:10:58.171572Z"},"content_sha256":"1c96ef214a3da91ebbcd21f38810c759347d284c4cac248c410bba0915e7d343","schema_version":"1.0","event_id":"sha256:1c96ef214a3da91ebbcd21f38810c759347d284c4cac248c410bba0915e7d343"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LCZKM7G7K46LLDNBNPXEHEOETA/bundle.json","state_url":"https://pith.science/pith/LCZKM7G7K46LLDNBNPXEHEOETA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LCZKM7G7K46LLDNBNPXEHEOETA/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":"2026-07-08T22:10:58Z","links":{"resolver":"https://pith.science/pith/LCZKM7G7K46LLDNBNPXEHEOETA","bundle":"https://pith.science/pith/LCZKM7G7K46LLDNBNPXEHEOETA/bundle.json","state":"https://pith.science/pith/LCZKM7G7K46LLDNBNPXEHEOETA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LCZKM7G7K46LLDNBNPXEHEOETA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:LCZKM7G7K46LLDNBNPXEHEOETA","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":"5a3d3b4dadf74b988c47f49f8651d07d84706d969c98c9b0b1a56090f926e50f","cross_cats_sorted":["cs.ET","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-28T09:36:32Z","title_canon_sha256":"ce5f329cac712b1973504ab017432355484c275d53af2f93ae3bfa51cbd0a8f4"},"schema_version":"1.0","source":{"id":"2208.13186","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.13186","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"arxiv_version","alias_value":"2208.13186v1","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.13186","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_12","alias_value":"LCZKM7G7K46L","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_16","alias_value":"LCZKM7G7K46LLDNB","created_at":"2026-07-05T04:52:04Z"},{"alias_kind":"pith_short_8","alias_value":"LCZKM7G7","created_at":"2026-07-05T04:52:04Z"}],"graph_snapshots":[{"event_id":"sha256:1c96ef214a3da91ebbcd21f38810c759347d284c4cac248c410bba0915e7d343","target":"graph","created_at":"2026-07-05T04:52:04Z","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/2208.13186/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With photonics, the quantum computational advantage has been demonstrated on the task of boson sampling. Next, developing quantum-enhanced approaches for practical problems becomes one of the top priorities for photonic systems. Quantum walks are powerful kernels for developing new and useful quantum algorithms. Here we realize large-scale quantum walks using a fully programmable photonic quantum computing system. The system integrates a silicon quantum photonic chip, enabling the simulation of quantum walk dynamics on graphs with up to 400 vertices and possessing full programmability over qua","authors_text":"Anqi Huang, Chunlin Yu, Dongyang Wang, Guangyao Huang, Jiangfang Ding, Junjie Wu, Junwei Zhan, Kai Lu, Mingtang Deng, Ping Xu, Qilin Zheng, Ru Zeng, Shichuan Xue, Weixia Xu, Weixu Shi, Xiang Fu, Xiaogang Qiang, Xuejun Yang, Yang Wang, Yingwen Liu, Yizhi Wang, Yong Liu, Yuzhen Zheng, Zhihao Wu, Zihao Wang","cross_cats":["cs.ET","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-28T09:36:32Z","title":"Large-scale full-programmable quantum walk and its applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.13186","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:c4e0777fcdab7d3268a3579e4c421e72c69270878d8bdad75195eac9a7d74bac","target":"record","created_at":"2026-07-05T04:52:04Z","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":"5a3d3b4dadf74b988c47f49f8651d07d84706d969c98c9b0b1a56090f926e50f","cross_cats_sorted":["cs.ET","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-08-28T09:36:32Z","title_canon_sha256":"ce5f329cac712b1973504ab017432355484c275d53af2f93ae3bfa51cbd0a8f4"},"schema_version":"1.0","source":{"id":"2208.13186","kind":"arxiv","version":1}},"canonical_sha256":"58b2a67cdf573cb58da16bee4391c4980300051bbc8afe13bde922467459b581","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58b2a67cdf573cb58da16bee4391c4980300051bbc8afe13bde922467459b581","first_computed_at":"2026-07-05T04:52:04.838180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:52:04.838180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2DscBJ8HMJ0YX7LGaXu81zh2mTjAegOwhmL+MQVrGZHMepmT/SBZmI1QrigBVSNUUCJfW2pjxX1L524EBnCjDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:52:04.838597Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.13186","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4e0777fcdab7d3268a3579e4c421e72c69270878d8bdad75195eac9a7d74bac","sha256:1c96ef214a3da91ebbcd21f38810c759347d284c4cac248c410bba0915e7d343"],"state_sha256":"6ebe7860d2f69b54769fc158ddbc447acb28eae58badd49123e69f8f17d365f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MbSD1O8jzuZO0TlORJUKo4M7cKt7PPovC6oHRfX3A08zBODMvN+EtsWvQuig+t51ufjdMq/8/jtoqiRNVe9cCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T22:10:58.173589Z","bundle_sha256":"d7265975c7786c805f1d85f842cd2e00f47f4c491593b21fa41a8497bdf290fb"}}