{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:ED3AVPSZO3DBRCU2GJBA5JMA4I","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":"5da8a662ef10ac665978ebcae71e5ccbfe6b3a85986bbc5a2923c7c0c7bb80ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-05T18:07:16Z","title_canon_sha256":"a434fda85cb92de538db961bdc6535505eb6aa0ca8d60eee08facf83625fb9e4"},"schema_version":"1.0","source":{"id":"1005.0802","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.0802","created_at":"2026-07-04T17:27:57Z"},{"alias_kind":"arxiv_version","alias_value":"1005.0802v1","created_at":"2026-07-04T17:27:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.0802","created_at":"2026-07-04T17:27:57Z"},{"alias_kind":"pith_short_12","alias_value":"ED3AVPSZO3DB","created_at":"2026-07-04T17:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"ED3AVPSZO3DBRCU2","created_at":"2026-07-04T17:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"ED3AVPSZ","created_at":"2026-07-04T17:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:7db95d258e1a78e03838cd3ed073d7a1b6c1b8187c8fc456b0b16a5f6e997021","target":"graph","created_at":"2026-07-04T17:27:57Z","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/1005.0802/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using spontaneous parametric down conversion and a 50:50 beam splitter, we generate coaxial polarization-entangled photon pairs, of which the two photons are far separated from each other. The photons are then sent one by one through one port of a modified Mach-Zehnder interferometer. We observe interference fringes with a periodicity half of the single-photon wavelength, independent of the distance between the photons. This feature can find applications in quantum-enhanced measurement.","authors_text":"Cheng-Zhi Peng, Tao Yang, Xian-Min Jin, Youjin Deng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-05T18:07:16Z","title":"Interference of overlap-free entangled photons with a Mach-Zehnder-like interferometer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.0802","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:d58457553261ba01ed219383c41c2732d8ccd1bfc61a9b3b676a82bdf5ca4b58","target":"record","created_at":"2026-07-04T17:27:57Z","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":"5da8a662ef10ac665978ebcae71e5ccbfe6b3a85986bbc5a2923c7c0c7bb80ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-05T18:07:16Z","title_canon_sha256":"a434fda85cb92de538db961bdc6535505eb6aa0ca8d60eee08facf83625fb9e4"},"schema_version":"1.0","source":{"id":"1005.0802","kind":"arxiv","version":1}},"canonical_sha256":"20f60abe5976c6188a9a32420ea580e20ae156cf2f0f13f225286dd0849cbfd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20f60abe5976c6188a9a32420ea580e20ae156cf2f0f13f225286dd0849cbfd3","first_computed_at":"2026-07-04T17:27:57.734094Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:27:57.734094Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oub/PJpVzSG8Rlf38PJ8YNdYnCPCCANbNrluWRiXAAcfc32nRazOQRVZzJ5qnOv1c1t52KEnS4b6j7ryxDJhAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T17:27:57.734527Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.0802","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d58457553261ba01ed219383c41c2732d8ccd1bfc61a9b3b676a82bdf5ca4b58","sha256:7db95d258e1a78e03838cd3ed073d7a1b6c1b8187c8fc456b0b16a5f6e997021"],"state_sha256":"2d7ab7dca8ce46d882d00d4d5a91f5bbca3e4e5b1f46cfeed1a3fd72507d6668"}