{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:VVIFCRLHQUXJD37ZCJKSSKCQIJ","short_pith_number":"pith:VVIFCRLH","canonical_record":{"source":{"id":"2103.14277","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-03-26T06:01:07Z","cross_cats_sorted":[],"title_canon_sha256":"abb40176d6d816fd38396cb686965c48f95f2f74af2e11083d3ca620b7af71c2","abstract_canon_sha256":"a13cb7a09c1646ea358c42f6921d5fa457ffcc8413fd403baf0d428b99272da2"},"schema_version":"1.0"},"canonical_sha256":"ad50514567852e91eff91255292850427b2cd51a36334b1994b45825c720bce9","source":{"kind":"arxiv","id":"2103.14277","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.14277","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.14277v2","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.14277","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_12","alias_value":"VVIFCRLHQUXJ","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_16","alias_value":"VVIFCRLHQUXJD37Z","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_8","alias_value":"VVIFCRLH","created_at":"2026-07-05T05:34:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:VVIFCRLHQUXJD37ZCJKSSKCQIJ","target":"record","payload":{"canonical_record":{"source":{"id":"2103.14277","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-03-26T06:01:07Z","cross_cats_sorted":[],"title_canon_sha256":"abb40176d6d816fd38396cb686965c48f95f2f74af2e11083d3ca620b7af71c2","abstract_canon_sha256":"a13cb7a09c1646ea358c42f6921d5fa457ffcc8413fd403baf0d428b99272da2"},"schema_version":"1.0"},"canonical_sha256":"ad50514567852e91eff91255292850427b2cd51a36334b1994b45825c720bce9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:34:41.154771Z","signature_b64":"CqduGk2xTCe7wbN3EuB7AmDd83iGwWfONQcc34ah/hFtjuzUu89LYR6RsI4Db+4i1NbLr+zoe7z2MlUHd1x3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad50514567852e91eff91255292850427b2cd51a36334b1994b45825c720bce9","last_reissued_at":"2026-07-05T05:34:41.154343Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:34:41.154343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.14277","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":"2026-07-05T05:34:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m7l7CeO71eznGuX8NxrE7oZw4QXVm2hFRTReMrcd9OyoGh1qEEXvMsRct9iWt6gYS8gwNoYER2VU/8QIPHjRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:24:59.851691Z"},"content_sha256":"afca6205606f4f7010b8e4b3140faff8e27674ff061ba12d934bbef985807037","schema_version":"1.0","event_id":"sha256:afca6205606f4f7010b8e4b3140faff8e27674ff061ba12d934bbef985807037"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:VVIFCRLHQUXJD37ZCJKSSKCQIJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On-chip quantum interference between the origins of a multi-photon state","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dao-Xin Dai, Di Liu, Guang-Can Guo, Guo-Ping Guo, Lan-Tian Feng, Mario Krenn, Ming Zhang, Xi-Feng Ren, Yu-Jie Cheng","submitted_at":"2021-03-26T06:01:07Z","abstract_excerpt":"Path identiy induces a broad interest in recent years due to the foundation for numerous novel quantum information applications. Here, we experimentally demonstrate quantum coherent superposition of two different origins of a four-photon state, where multi-photon frustrated interference emerges from the quantum indistinguishability by path identity. The quantum state is created in four probabilistic photon-pair sources on one integrated silicon photonic chip, two combinations of which can create photon quadruplets. Coherent elimination and revival of distributed four-photons are fully controll"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.14277","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/2103.14277/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":"2026-07-05T05:34:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wAobCNBoS5i1+6fy9jeGHHw2DApLYsepEq0VIOnNjLOj6Xe1yAX5h9Nm7Ysv2XpBfCQLlK/h02RwLPUCmoOYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:24:59.852062Z"},"content_sha256":"739611129ed153167da0b415edcbf582865bd106b4afa752b9809ba4ad798249","schema_version":"1.0","event_id":"sha256:739611129ed153167da0b415edcbf582865bd106b4afa752b9809ba4ad798249"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/bundle.json","state_url":"https://pith.science/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/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":"2026-07-06T17:24:59Z","links":{"resolver":"https://pith.science/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ","bundle":"https://pith.science/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/bundle.json","state":"https://pith.science/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VVIFCRLHQUXJD37ZCJKSSKCQIJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VVIFCRLHQUXJD37ZCJKSSKCQIJ","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":"a13cb7a09c1646ea358c42f6921d5fa457ffcc8413fd403baf0d428b99272da2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-03-26T06:01:07Z","title_canon_sha256":"abb40176d6d816fd38396cb686965c48f95f2f74af2e11083d3ca620b7af71c2"},"schema_version":"1.0","source":{"id":"2103.14277","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.14277","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"arxiv_version","alias_value":"2103.14277v2","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.14277","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_12","alias_value":"VVIFCRLHQUXJ","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_16","alias_value":"VVIFCRLHQUXJD37Z","created_at":"2026-07-05T05:34:41Z"},{"alias_kind":"pith_short_8","alias_value":"VVIFCRLH","created_at":"2026-07-05T05:34:41Z"}],"graph_snapshots":[{"event_id":"sha256:739611129ed153167da0b415edcbf582865bd106b4afa752b9809ba4ad798249","target":"graph","created_at":"2026-07-05T05:34:41Z","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/2103.14277/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Path identiy induces a broad interest in recent years due to the foundation for numerous novel quantum information applications. Here, we experimentally demonstrate quantum coherent superposition of two different origins of a four-photon state, where multi-photon frustrated interference emerges from the quantum indistinguishability by path identity. The quantum state is created in four probabilistic photon-pair sources on one integrated silicon photonic chip, two combinations of which can create photon quadruplets. Coherent elimination and revival of distributed four-photons are fully controll","authors_text":"Dao-Xin Dai, Di Liu, Guang-Can Guo, Guo-Ping Guo, Lan-Tian Feng, Mario Krenn, Ming Zhang, Xi-Feng Ren, Yu-Jie Cheng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-03-26T06:01:07Z","title":"On-chip quantum interference between the origins of a multi-photon state"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.14277","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:afca6205606f4f7010b8e4b3140faff8e27674ff061ba12d934bbef985807037","target":"record","created_at":"2026-07-05T05:34:41Z","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":"a13cb7a09c1646ea358c42f6921d5fa457ffcc8413fd403baf0d428b99272da2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-03-26T06:01:07Z","title_canon_sha256":"abb40176d6d816fd38396cb686965c48f95f2f74af2e11083d3ca620b7af71c2"},"schema_version":"1.0","source":{"id":"2103.14277","kind":"arxiv","version":2}},"canonical_sha256":"ad50514567852e91eff91255292850427b2cd51a36334b1994b45825c720bce9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad50514567852e91eff91255292850427b2cd51a36334b1994b45825c720bce9","first_computed_at":"2026-07-05T05:34:41.154343Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:34:41.154343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CqduGk2xTCe7wbN3EuB7AmDd83iGwWfONQcc34ah/hFtjuzUu89LYR6RsI4Db+4i1NbLr+zoe7z2MlUHd1x3DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:34:41.154771Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.14277","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afca6205606f4f7010b8e4b3140faff8e27674ff061ba12d934bbef985807037","sha256:739611129ed153167da0b415edcbf582865bd106b4afa752b9809ba4ad798249"],"state_sha256":"dd7533d7a226618759b3767baf05fd28b62df759cebfd243472afb94719af2e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uVV51SaQccrrHpuXiM9br0805icLFVDRKDrQBnisvr+rugNaWJUk2TLx3ttv3u000uG/Vv2ZsbTzwXYiuBxkDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T17:24:59.854028Z","bundle_sha256":"4f92e96a9a2ce46389480d6949597ac492580e3451120722e40a58eca97a6845"}}