{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:U2GSJEHFLA7W3ZVZYQLLXFYJI6","short_pith_number":"pith:U2GSJEHF","canonical_record":{"source":{"id":"1908.03683","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-10T03:55:06Z","cross_cats_sorted":[],"title_canon_sha256":"e9b9132bad2730744fb1f244b6017498712aad5536c2c2dd473a07cb837c51e0","abstract_canon_sha256":"9dd1960d7d656fafb05aab509c30624446f23ef12fc1df26ab8f399d3d1a0fc0"},"schema_version":"1.0"},"canonical_sha256":"a68d2490e5583f6de6b9c416bb970947ac001a0917b521ffd70b8cdc737fd331","source":{"kind":"arxiv","id":"1908.03683","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03683","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03683v1","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03683","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_12","alias_value":"U2GSJEHFLA7W","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_16","alias_value":"U2GSJEHFLA7W3ZVZ","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_8","alias_value":"U2GSJEHF","created_at":"2026-07-04T23:53:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:U2GSJEHFLA7W3ZVZYQLLXFYJI6","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03683","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-10T03:55:06Z","cross_cats_sorted":[],"title_canon_sha256":"e9b9132bad2730744fb1f244b6017498712aad5536c2c2dd473a07cb837c51e0","abstract_canon_sha256":"9dd1960d7d656fafb05aab509c30624446f23ef12fc1df26ab8f399d3d1a0fc0"},"schema_version":"1.0"},"canonical_sha256":"a68d2490e5583f6de6b9c416bb970947ac001a0917b521ffd70b8cdc737fd331","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:53:17.221395Z","signature_b64":"KhkGPz87cTnnYJSgPxfYrmHRb3YLkNmsQ7VFZCBQUd8X4P1pqK/a1e3AszanWrB/sbbr8Jtp8Kht+uzby3o2Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a68d2490e5583f6de6b9c416bb970947ac001a0917b521ffd70b8cdc737fd331","last_reissued_at":"2026-07-04T23:53:17.220885Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:53:17.220885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03683","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":"2026-07-04T23:53:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U06ol9J+1QHnUGRJ5STLee44XQZouyrEmy15rpMZmlQfGTCGJzzuusBKJcoW4Norf74WhLPTqtIeiCi9q0PTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T04:15:05.075925Z"},"content_sha256":"01ec5045675b3106f42a9f9a1840650a76d77561b42ce9dd13de0ea3bf31b453","schema_version":"1.0","event_id":"sha256:01ec5045675b3106f42a9f9a1840650a76d77561b42ce9dd13de0ea3bf31b453"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:U2GSJEHFLA7W3ZVZYQLLXFYJI6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Photonic Node for On-Chip State Transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Pu Zhang, Xue-Wen Chen, Zhaohua Tian","submitted_at":"2019-08-10T03:55:06Z","abstract_excerpt":"Integrated quantum photonics hold the promise to scale up the system size and form an on-chip quantum network with distributed information processing and simulation units. An outstanding need of such quantum network is to have high fidelity and efficiency on-chip state transfer between distant nodes. Although the nodes are naturally connected via waveguides, it is challenging to fulfill this need because stringent conditions such as spatial mode-matching configuration and time-reversal symmetry have to be satisfied. Here we report a type of quantum photonic nodes consisting of single quantum e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03683","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/1908.03683/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":"2026-07-04T23:53:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qbUYihrCaqoEfmWUhjqd3R4AkGW/tFfr/SdeagT1ktXHiO6I9RDWB1mg/i6gzzC5V7f2HeUDGpyHcGBd2kMBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T04:15:05.076486Z"},"content_sha256":"97dce8a927e0c98d8fe921db7c20e500a1cd6991fcea8a7f0ee273995e995a6b","schema_version":"1.0","event_id":"sha256:97dce8a927e0c98d8fe921db7c20e500a1cd6991fcea8a7f0ee273995e995a6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/bundle.json","state_url":"https://pith.science/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/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":"2026-08-17T04:15:05Z","links":{"resolver":"https://pith.science/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6","bundle":"https://pith.science/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/bundle.json","state":"https://pith.science/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U2GSJEHFLA7W3ZVZYQLLXFYJI6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:U2GSJEHFLA7W3ZVZYQLLXFYJI6","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":"9dd1960d7d656fafb05aab509c30624446f23ef12fc1df26ab8f399d3d1a0fc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-10T03:55:06Z","title_canon_sha256":"e9b9132bad2730744fb1f244b6017498712aad5536c2c2dd473a07cb837c51e0"},"schema_version":"1.0","source":{"id":"1908.03683","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03683","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03683v1","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03683","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_12","alias_value":"U2GSJEHFLA7W","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_16","alias_value":"U2GSJEHFLA7W3ZVZ","created_at":"2026-07-04T23:53:17Z"},{"alias_kind":"pith_short_8","alias_value":"U2GSJEHF","created_at":"2026-07-04T23:53:17Z"}],"graph_snapshots":[{"event_id":"sha256:97dce8a927e0c98d8fe921db7c20e500a1cd6991fcea8a7f0ee273995e995a6b","target":"graph","created_at":"2026-07-04T23:53:17Z","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/1908.03683/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Integrated quantum photonics hold the promise to scale up the system size and form an on-chip quantum network with distributed information processing and simulation units. An outstanding need of such quantum network is to have high fidelity and efficiency on-chip state transfer between distant nodes. Although the nodes are naturally connected via waveguides, it is challenging to fulfill this need because stringent conditions such as spatial mode-matching configuration and time-reversal symmetry have to be satisfied. Here we report a type of quantum photonic nodes consisting of single quantum e","authors_text":"Pu Zhang, Xue-Wen Chen, Zhaohua Tian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-10T03:55:06Z","title":"Quantum Photonic Node for On-Chip State Transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03683","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":"sha256:01ec5045675b3106f42a9f9a1840650a76d77561b42ce9dd13de0ea3bf31b453","target":"record","created_at":"2026-07-04T23:53:17Z","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":"9dd1960d7d656fafb05aab509c30624446f23ef12fc1df26ab8f399d3d1a0fc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-10T03:55:06Z","title_canon_sha256":"e9b9132bad2730744fb1f244b6017498712aad5536c2c2dd473a07cb837c51e0"},"schema_version":"1.0","source":{"id":"1908.03683","kind":"arxiv","version":1}},"canonical_sha256":"a68d2490e5583f6de6b9c416bb970947ac001a0917b521ffd70b8cdc737fd331","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a68d2490e5583f6de6b9c416bb970947ac001a0917b521ffd70b8cdc737fd331","first_computed_at":"2026-07-04T23:53:17.220885Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:53:17.220885Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KhkGPz87cTnnYJSgPxfYrmHRb3YLkNmsQ7VFZCBQUd8X4P1pqK/a1e3AszanWrB/sbbr8Jtp8Kht+uzby3o2Dg==","signature_status":"signed_v1","signed_at":"2026-07-04T23:53:17.221395Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03683","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01ec5045675b3106f42a9f9a1840650a76d77561b42ce9dd13de0ea3bf31b453","sha256:97dce8a927e0c98d8fe921db7c20e500a1cd6991fcea8a7f0ee273995e995a6b"],"state_sha256":"0cf0b3a224e3ca9f6206cd6714df423343d009079962ea08ce022250d6ca42ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZMxaopx3DtYe+szDMRMUTJpJYnUFAOQ3Gw0xvNmIsMlReCKdV4gHGVWZAFPy4bqNB3lzJ7s2ydYGNo2bTYNTCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T04:15:05.080107Z","bundle_sha256":"d8a27c85a4cff9ba2ad3b6c62652f266ba0e7e78fde65e288ba8ae1302e95071"}}