{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:U25AYB2HQ35CYQDTUR5FI4IQND","short_pith_number":"pith:U25AYB2H","canonical_record":{"source":{"id":"1302.0162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-02-01T12:30:22Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"8b925cc57adbfeb96290bb6c56ef470f6668af5427a40388a2efa88cea92dcfa","abstract_canon_sha256":"d9b02bad29d43edc2b04f849e804af81abc085791c1caf14ab9fa8515a55dd18"},"schema_version":"1.0"},"canonical_sha256":"a6ba0c074786fa2c4073a47a54711068da4b5f698a68f3b09da91d2ef3b83c7f","source":{"kind":"arxiv","id":"1302.0162","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.0162","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"1302.0162v1","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.0162","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"U25AYB2HQ35C","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U25AYB2HQ35CYQDT","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U25AYB2H","created_at":"2026-05-18T12:28:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:U25AYB2HQ35CYQDTUR5FI4IQND","target":"record","payload":{"canonical_record":{"source":{"id":"1302.0162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-02-01T12:30:22Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"8b925cc57adbfeb96290bb6c56ef470f6668af5427a40388a2efa88cea92dcfa","abstract_canon_sha256":"d9b02bad29d43edc2b04f849e804af81abc085791c1caf14ab9fa8515a55dd18"},"schema_version":"1.0"},"canonical_sha256":"a6ba0c074786fa2c4073a47a54711068da4b5f698a68f3b09da91d2ef3b83c7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:07:20.957963Z","signature_b64":"m0fARqAeVaJW0MqKnwxTcE5A+YfICn0mZ23+k3ZbaR3Fk6gTrWXGg1JedIt5pZ/f91jDb34rFvn/X/ZTr3LYBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6ba0c074786fa2c4073a47a54711068da4b5f698a68f3b09da91d2ef3b83c7f","last_reissued_at":"2026-05-18T03:07:20.957535Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:07:20.957535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.0162","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":"2026-05-18T03:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JfzdbM8pMO9UOX8r+Cf3ZLewglmQwP32Ln+U/Z0pM96tZJVgKe+3Jmyyt0f9ssiC01xMLnsdYo++Yhj0caXvAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:52:02.437230Z"},"content_sha256":"bd32fb16ce82a00fe517ffb6c97379b82fac9c4ba2199c161c0b3bbd275ea8f5","schema_version":"1.0","event_id":"sha256:bd32fb16ce82a00fe517ffb6c97379b82fac9c4ba2199c161c0b3bbd275ea8f5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:U25AYB2HQ35CYQDTUR5FI4IQND","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"H. Jin, H. Y. Leng, P. Xu, S. N. Zhu, X. W. Luo, Y. X. Gong","submitted_at":"2013-02-01T12:30:22Z","abstract_excerpt":"Photonic entangled states lie at the heart of quantum science for the demonstrations of quantum mechanics foundations and supply as a key resource for approaching various quantum technologies. An integrated realization of such states will certainly guarantee a high-degree of entanglement and improve the performance like portability, stability and miniaturization, hence becomes an inevitable tendency towards the integrated quantum optics. Here, we report the compact realization of steerable photonic path-entangled states from a monolithic quadratic nonlinear photonic crystal. The crystal acts a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.0162","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":"2026-05-18T03:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mr1GzPU0cS4gAcO/Yd11D4S2FWRC5CkosNiy6AOydxp4z3WrLq+f1x067cIjXZmPC18SWFk488xRXE6GkOqoAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T22:52:02.437678Z"},"content_sha256":"06980d0dca7510104971688d5b2f71f701af06aec4578cc157388746db7c7c67","schema_version":"1.0","event_id":"sha256:06980d0dca7510104971688d5b2f71f701af06aec4578cc157388746db7c7c67"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U25AYB2HQ35CYQDTUR5FI4IQND/bundle.json","state_url":"https://pith.science/pith/U25AYB2HQ35CYQDTUR5FI4IQND/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U25AYB2HQ35CYQDTUR5FI4IQND/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":"2026-08-19T22:52:02Z","links":{"resolver":"https://pith.science/pith/U25AYB2HQ35CYQDTUR5FI4IQND","bundle":"https://pith.science/pith/U25AYB2HQ35CYQDTUR5FI4IQND/bundle.json","state":"https://pith.science/pith/U25AYB2HQ35CYQDTUR5FI4IQND/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U25AYB2HQ35CYQDTUR5FI4IQND/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:U25AYB2HQ35CYQDTUR5FI4IQND","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":"d9b02bad29d43edc2b04f849e804af81abc085791c1caf14ab9fa8515a55dd18","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-02-01T12:30:22Z","title_canon_sha256":"8b925cc57adbfeb96290bb6c56ef470f6668af5427a40388a2efa88cea92dcfa"},"schema_version":"1.0","source":{"id":"1302.0162","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.0162","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"1302.0162v1","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.0162","created_at":"2026-05-18T03:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"U25AYB2HQ35C","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_16","alias_value":"U25AYB2HQ35CYQDT","created_at":"2026-05-18T12:28:02Z"},{"alias_kind":"pith_short_8","alias_value":"U25AYB2H","created_at":"2026-05-18T12:28:02Z"}],"graph_snapshots":[{"event_id":"sha256:06980d0dca7510104971688d5b2f71f701af06aec4578cc157388746db7c7c67","target":"graph","created_at":"2026-05-18T03:07:20Z","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":"Photonic entangled states lie at the heart of quantum science for the demonstrations of quantum mechanics foundations and supply as a key resource for approaching various quantum technologies. An integrated realization of such states will certainly guarantee a high-degree of entanglement and improve the performance like portability, stability and miniaturization, hence becomes an inevitable tendency towards the integrated quantum optics. Here, we report the compact realization of steerable photonic path-entangled states from a monolithic quadratic nonlinear photonic crystal. The crystal acts a","authors_text":"H. Jin, H. Y. Leng, P. Xu, S. N. Zhu, X. W. Luo, Y. X. Gong","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-02-01T12:30:22Z","title":"Compact engineering of path-entangled sources from a monolithic quadratic nonlinear photonic crystal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.0162","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:bd32fb16ce82a00fe517ffb6c97379b82fac9c4ba2199c161c0b3bbd275ea8f5","target":"record","created_at":"2026-05-18T03:07:20Z","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":"d9b02bad29d43edc2b04f849e804af81abc085791c1caf14ab9fa8515a55dd18","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2013-02-01T12:30:22Z","title_canon_sha256":"8b925cc57adbfeb96290bb6c56ef470f6668af5427a40388a2efa88cea92dcfa"},"schema_version":"1.0","source":{"id":"1302.0162","kind":"arxiv","version":1}},"canonical_sha256":"a6ba0c074786fa2c4073a47a54711068da4b5f698a68f3b09da91d2ef3b83c7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6ba0c074786fa2c4073a47a54711068da4b5f698a68f3b09da91d2ef3b83c7f","first_computed_at":"2026-05-18T03:07:20.957535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:07:20.957535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m0fARqAeVaJW0MqKnwxTcE5A+YfICn0mZ23+k3ZbaR3Fk6gTrWXGg1JedIt5pZ/f91jDb34rFvn/X/ZTr3LYBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:07:20.957963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.0162","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd32fb16ce82a00fe517ffb6c97379b82fac9c4ba2199c161c0b3bbd275ea8f5","sha256:06980d0dca7510104971688d5b2f71f701af06aec4578cc157388746db7c7c67"],"state_sha256":"6760f06cf0ffddfe8f012c5ad88e2df08ca46c24f8928be27a15b5876a5f46cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iaYiJjm89lqIcIWsC4fOALLr2JYg588hZq49E6A+H9vUtN3PovDxZLp+NJzuU0QaMSNHT4ILjDBx33hxuo6HAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T22:52:02.443417Z","bundle_sha256":"6a7d62b5fd8ce00a633d19f0855106ea474cd3b9cc89d4119e8d50a517f2c25e"}}