{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6XVOEIVLVZIIG3Z5CXR53T55KL","short_pith_number":"pith:6XVOEIVL","canonical_record":{"source":{"id":"1802.09847","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-02-27T12:13:30Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"d14ddbf5f3981540623367258a08eb2776db1e67b2935852302cd4da14d5a1f0","abstract_canon_sha256":"5bd7e12595364be2a1d95cb921a71a3e7fea7557bc43a8851528cef4c26b461d"},"schema_version":"1.0"},"canonical_sha256":"f5eae222abae50836f3d15e3ddcfbd52f5a883bf16587805d2abc3bfc96d92ad","source":{"kind":"arxiv","id":"1802.09847","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.09847","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"arxiv_version","alias_value":"1802.09847v3","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.09847","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"pith_short_12","alias_value":"6XVOEIVLVZII","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6XVOEIVLVZIIG3Z5","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6XVOEIVL","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6XVOEIVLVZIIG3Z5CXR53T55KL","target":"record","payload":{"canonical_record":{"source":{"id":"1802.09847","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-02-27T12:13:30Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"d14ddbf5f3981540623367258a08eb2776db1e67b2935852302cd4da14d5a1f0","abstract_canon_sha256":"5bd7e12595364be2a1d95cb921a71a3e7fea7557bc43a8851528cef4c26b461d"},"schema_version":"1.0"},"canonical_sha256":"f5eae222abae50836f3d15e3ddcfbd52f5a883bf16587805d2abc3bfc96d92ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:56:10.314468Z","signature_b64":"tZ+hibgYWNv42f+ofP0bBl/gRYoFsB6JOzhh00VaYU6L2uaL0OrYO0tsRFlvreTlSvPp0NiTU814tnnhdFMYBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5eae222abae50836f3d15e3ddcfbd52f5a883bf16587805d2abc3bfc96d92ad","last_reissued_at":"2026-05-17T23:56:10.313747Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:56:10.313747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.09847","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:56:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DWxHLCTQNYiPG6WMpxq8haFQeWvSu2d6xuqI+ODTNFQYRMM39nal/fwJDxk8UZTXurvaQNjM58L+LstUgGW/Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:52:01.807045Z"},"content_sha256":"bc668b5d190681b3b68f2d4bee57d0db796ea96b5e88add5f333c6756261c55e","schema_version":"1.0","event_id":"sha256:bc668b5d190681b3b68f2d4bee57d0db796ea96b5e88add5f333c6756261c55e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6XVOEIVLVZIIG3Z5CXR53T55KL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On-chip transverse-mode entangled photon pair source","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Dao-Xin Dai, Guang-Can Guo, Guo-Ping Guo, Lan-Tian Feng, Ming Zhang, Xi-Feng Ren, Yang Chen","submitted_at":"2018-02-27T12:13:30Z","abstract_excerpt":"Integrated entangled photon pair source is an essential resource for both fundamental investigations and practical applications of quantum information science. Currently there have been several types of entanglement, among which the transverse-mode entanglement is becoming attractive because of its unique advantages. Here, we report an on-chip transverse-mode entangled photon pair source via the spontaneous four-wave mixing processes in a multimode silicon waveguide. Transverse-mode photon pairs are verified over multiple frequency channels within a bandwidth of $\\sim$2~THz, and a maximally en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09847","kind":"arxiv","version":3},"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":"2026-05-17T23:56:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QvFnWX9QdzF40d6U54ww3wegrqiOQD41qq8hEH1ipFHayNSs8Q5YLz6Zckd1DzbyD86fvhj18DI52nRGwEFbBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:52:01.807415Z"},"content_sha256":"32c20d0e475dad0570111c2ab27280bb686b843b30fa07b10d974a26cf1c3a7c","schema_version":"1.0","event_id":"sha256:32c20d0e475dad0570111c2ab27280bb686b843b30fa07b10d974a26cf1c3a7c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/bundle.json","state_url":"https://pith.science/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/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":"2026-06-05T09:52:01Z","links":{"resolver":"https://pith.science/pith/6XVOEIVLVZIIG3Z5CXR53T55KL","bundle":"https://pith.science/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/bundle.json","state":"https://pith.science/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6XVOEIVLVZIIG3Z5CXR53T55KL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6XVOEIVLVZIIG3Z5CXR53T55KL","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":"5bd7e12595364be2a1d95cb921a71a3e7fea7557bc43a8851528cef4c26b461d","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-02-27T12:13:30Z","title_canon_sha256":"d14ddbf5f3981540623367258a08eb2776db1e67b2935852302cd4da14d5a1f0"},"schema_version":"1.0","source":{"id":"1802.09847","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.09847","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"arxiv_version","alias_value":"1802.09847v3","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.09847","created_at":"2026-05-17T23:56:10Z"},{"alias_kind":"pith_short_12","alias_value":"6XVOEIVLVZII","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6XVOEIVLVZIIG3Z5","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6XVOEIVL","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:32c20d0e475dad0570111c2ab27280bb686b843b30fa07b10d974a26cf1c3a7c","target":"graph","created_at":"2026-05-17T23:56:10Z","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":"Integrated entangled photon pair source is an essential resource for both fundamental investigations and practical applications of quantum information science. Currently there have been several types of entanglement, among which the transverse-mode entanglement is becoming attractive because of its unique advantages. Here, we report an on-chip transverse-mode entangled photon pair source via the spontaneous four-wave mixing processes in a multimode silicon waveguide. Transverse-mode photon pairs are verified over multiple frequency channels within a bandwidth of $\\sim$2~THz, and a maximally en","authors_text":"Dao-Xin Dai, Guang-Can Guo, Guo-Ping Guo, Lan-Tian Feng, Ming Zhang, Xi-Feng Ren, Yang Chen","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-02-27T12:13:30Z","title":"On-chip transverse-mode entangled photon pair source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.09847","kind":"arxiv","version":3},"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:bc668b5d190681b3b68f2d4bee57d0db796ea96b5e88add5f333c6756261c55e","target":"record","created_at":"2026-05-17T23:56:10Z","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":"5bd7e12595364be2a1d95cb921a71a3e7fea7557bc43a8851528cef4c26b461d","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-02-27T12:13:30Z","title_canon_sha256":"d14ddbf5f3981540623367258a08eb2776db1e67b2935852302cd4da14d5a1f0"},"schema_version":"1.0","source":{"id":"1802.09847","kind":"arxiv","version":3}},"canonical_sha256":"f5eae222abae50836f3d15e3ddcfbd52f5a883bf16587805d2abc3bfc96d92ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5eae222abae50836f3d15e3ddcfbd52f5a883bf16587805d2abc3bfc96d92ad","first_computed_at":"2026-05-17T23:56:10.313747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:56:10.313747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tZ+hibgYWNv42f+ofP0bBl/gRYoFsB6JOzhh00VaYU6L2uaL0OrYO0tsRFlvreTlSvPp0NiTU814tnnhdFMYBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:56:10.314468Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.09847","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc668b5d190681b3b68f2d4bee57d0db796ea96b5e88add5f333c6756261c55e","sha256:32c20d0e475dad0570111c2ab27280bb686b843b30fa07b10d974a26cf1c3a7c"],"state_sha256":"426e63d8df31ed481e8777596957b69ef5e991171dabdb707e68a3da17eb77d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cY+jpPq5YUGCYFzLl22jpq9idzI0aV99MDFfIbcsvH/OiM+J9m2Wvr6b+3vkzav3qZ65nlw2/1yPHP6VIEhFDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T09:52:01.809425Z","bundle_sha256":"9e2b8257ac245b88e74544549defac63e79d7aae967650dec532b3ecb8044bd3"}}