{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:RL4ZLXY4E3ESDPMNDWGJPIB62R","short_pith_number":"pith:RL4ZLXY4","canonical_record":{"source":{"id":"1707.02276","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-07T17:16:47Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e08b9671ec924ead9795e32ca4395b4fc20de8fcb32d9792efdfe7a2d9a858a1","abstract_canon_sha256":"4e32094b67a7c8b7d9ef0c855458d59a6176087acdd1de7a26110e71bf61ebbe"},"schema_version":"1.0"},"canonical_sha256":"8af995df1c26c921bd8d1d8c97a03ed46541da37d75159cb1b9053bbad4f4529","source":{"kind":"arxiv","id":"1707.02276","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02276","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02276v2","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02276","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"pith_short_12","alias_value":"RL4ZLXY4E3ES","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RL4ZLXY4E3ESDPMN","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RL4ZLXY4","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:RL4ZLXY4E3ESDPMNDWGJPIB62R","target":"record","payload":{"canonical_record":{"source":{"id":"1707.02276","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-07T17:16:47Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e08b9671ec924ead9795e32ca4395b4fc20de8fcb32d9792efdfe7a2d9a858a1","abstract_canon_sha256":"4e32094b67a7c8b7d9ef0c855458d59a6176087acdd1de7a26110e71bf61ebbe"},"schema_version":"1.0"},"canonical_sha256":"8af995df1c26c921bd8d1d8c97a03ed46541da37d75159cb1b9053bbad4f4529","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:23.618855Z","signature_b64":"c7v+Vdh8N5NdMhQ0XD+jryV9eY38Mng19ox3th4ZsmESteJY+5oOmIfREa9ct5po59YycM3tVAXIUkZLZ7PsDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8af995df1c26c921bd8d1d8c97a03ed46541da37d75159cb1b9053bbad4f4529","last_reissued_at":"2026-05-18T00:25:23.618211Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:23.618211Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.02276","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":"2026-05-18T00:25:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Mt/yEkHyY+lAPDZEqdYP2QCuaHMeq6b2EknuR98muoeBN6is9KDOW0Fv1M+EydTyOMv05X1cEjql1uRhQFRPAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:11:35.290059Z"},"content_sha256":"f235b39dc23dab7daec336e51b50a762e1bff3a6d4a649ea57caf1c3a788cf33","schema_version":"1.0","event_id":"sha256:f235b39dc23dab7daec336e51b50a762e1bff3a6d4a649ea57caf1c3a788cf33"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:RL4ZLXY4E3ESDPMNDWGJPIB62R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-dimensional frequency-bin entangled photons in an optical microresonator on a chip","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Andrew M. Weiner, Daniel E. Leaird, Jose A. Jaramillo-Villegas, Joseph M. Lukens, Kyunghun Han, Minghao Qi, Ogaga D. Odele, Pavel Lougovski, Poolad Imany","submitted_at":"2017-07-07T17:16:47Z","abstract_excerpt":"Quantum frequency combs from chip-scale integrated sources are promising candidates for scalable and robust quantum information processing (QIP). However, to use these quantum combs for frequency domain QIP, demonstration of entanglement in the frequency basis, showing that the entangled photons are in a coherent superposition of multiple frequency bins, is required. We present a verification of qubit and qutrit frequency-bin entanglement using an on-chip quantum frequency comb with 40 mode pairs, through a two-photon interference measurement that is based on electro-optic phase modulation. Ou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02276","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":""},"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":"2026-05-18T00:25:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lbR8gc2L22vcytRCQoGj/spjG8Ed0Uve5DtJLeXkG5zOF8NbwsAmlSA8ucID0Q0v4ldDVDK2TmJx2Xye6mEbBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:11:35.290786Z"},"content_sha256":"c98eb650f82d16ef7aefd0887f71ee95cf45fd5bbc72fce495181482fd21f5cd","schema_version":"1.0","event_id":"sha256:c98eb650f82d16ef7aefd0887f71ee95cf45fd5bbc72fce495181482fd21f5cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/bundle.json","state_url":"https://pith.science/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/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":"2026-05-25T20:11:35Z","links":{"resolver":"https://pith.science/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R","bundle":"https://pith.science/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/bundle.json","state":"https://pith.science/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RL4ZLXY4E3ESDPMNDWGJPIB62R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RL4ZLXY4E3ESDPMNDWGJPIB62R","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":"4e32094b67a7c8b7d9ef0c855458d59a6176087acdd1de7a26110e71bf61ebbe","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-07T17:16:47Z","title_canon_sha256":"e08b9671ec924ead9795e32ca4395b4fc20de8fcb32d9792efdfe7a2d9a858a1"},"schema_version":"1.0","source":{"id":"1707.02276","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.02276","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"arxiv_version","alias_value":"1707.02276v2","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.02276","created_at":"2026-05-18T00:25:23Z"},{"alias_kind":"pith_short_12","alias_value":"RL4ZLXY4E3ES","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RL4ZLXY4E3ESDPMN","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RL4ZLXY4","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:c98eb650f82d16ef7aefd0887f71ee95cf45fd5bbc72fce495181482fd21f5cd","target":"graph","created_at":"2026-05-18T00:25:23Z","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":"Quantum frequency combs from chip-scale integrated sources are promising candidates for scalable and robust quantum information processing (QIP). However, to use these quantum combs for frequency domain QIP, demonstration of entanglement in the frequency basis, showing that the entangled photons are in a coherent superposition of multiple frequency bins, is required. We present a verification of qubit and qutrit frequency-bin entanglement using an on-chip quantum frequency comb with 40 mode pairs, through a two-photon interference measurement that is based on electro-optic phase modulation. Ou","authors_text":"Andrew M. Weiner, Daniel E. Leaird, Jose A. Jaramillo-Villegas, Joseph M. Lukens, Kyunghun Han, Minghao Qi, Ogaga D. Odele, Pavel Lougovski, Poolad Imany","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-07T17:16:47Z","title":"High-dimensional frequency-bin entangled photons in an optical microresonator on a chip"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.02276","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:f235b39dc23dab7daec336e51b50a762e1bff3a6d4a649ea57caf1c3a788cf33","target":"record","created_at":"2026-05-18T00:25:23Z","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":"4e32094b67a7c8b7d9ef0c855458d59a6176087acdd1de7a26110e71bf61ebbe","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-07T17:16:47Z","title_canon_sha256":"e08b9671ec924ead9795e32ca4395b4fc20de8fcb32d9792efdfe7a2d9a858a1"},"schema_version":"1.0","source":{"id":"1707.02276","kind":"arxiv","version":2}},"canonical_sha256":"8af995df1c26c921bd8d1d8c97a03ed46541da37d75159cb1b9053bbad4f4529","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8af995df1c26c921bd8d1d8c97a03ed46541da37d75159cb1b9053bbad4f4529","first_computed_at":"2026-05-18T00:25:23.618211Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:23.618211Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c7v+Vdh8N5NdMhQ0XD+jryV9eY38Mng19ox3th4ZsmESteJY+5oOmIfREa9ct5po59YycM3tVAXIUkZLZ7PsDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:23.618855Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.02276","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f235b39dc23dab7daec336e51b50a762e1bff3a6d4a649ea57caf1c3a788cf33","sha256:c98eb650f82d16ef7aefd0887f71ee95cf45fd5bbc72fce495181482fd21f5cd"],"state_sha256":"6559cdc5686d402a16aabfd5af1cdca50db0662dd26645a4f37b9b76bd27cba2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JoEKMgW+TKi7ayFkmRs7CBf8udamsrKqo2zl84frfySqIgAe4e9dVVZB6oG2jBJJKLHw+Bb6UJJu6dJeabehDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:11:35.294855Z","bundle_sha256":"ed8e834590adb9c5d3a56638b3a7de2c51866df24ab6340f13423f27db926333"}}