{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:IKP6MY542ITYXK52TROIGHYXOC","short_pith_number":"pith:IKP6MY54","canonical_record":{"source":{"id":"1712.08411","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-22T12:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"f337a511f5121e692a03f24e01f2ad432501128460929bf4859253d84735ae18","abstract_canon_sha256":"741b017169803aa136a72e8a8b0ad461d61a0dbd0e65435ff1bf103627c31e3f"},"schema_version":"1.0"},"canonical_sha256":"429fe663bcd2278babba9c5c831f1770a2d0a1c1ee62fb0e977020ab59283dab","source":{"kind":"arxiv","id":"1712.08411","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.08411","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"arxiv_version","alias_value":"1712.08411v1","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.08411","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"pith_short_12","alias_value":"IKP6MY542ITY","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IKP6MY542ITYXK52","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IKP6MY54","created_at":"2026-05-18T12:31:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:IKP6MY542ITYXK52TROIGHYXOC","target":"record","payload":{"canonical_record":{"source":{"id":"1712.08411","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-22T12:00:08Z","cross_cats_sorted":[],"title_canon_sha256":"f337a511f5121e692a03f24e01f2ad432501128460929bf4859253d84735ae18","abstract_canon_sha256":"741b017169803aa136a72e8a8b0ad461d61a0dbd0e65435ff1bf103627c31e3f"},"schema_version":"1.0"},"canonical_sha256":"429fe663bcd2278babba9c5c831f1770a2d0a1c1ee62fb0e977020ab59283dab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:59.518236Z","signature_b64":"lXrnDDsZiY5i0UCJSxmHXEihPGHLWma+HQV3Melf3UxnpVocnFfi/ch+hmSp5O0tI08JOGc4veL0A3r/9r8QBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"429fe663bcd2278babba9c5c831f1770a2d0a1c1ee62fb0e977020ab59283dab","last_reissued_at":"2026-05-18T00:00:59.517847Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:59.517847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.08411","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":"2026-05-18T00:00:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n69hi6kKplCoo5+SX5QZuHRsYB2L5rOXxa96OPS5515jxQ/GwlwtwBUQC+5ZAaAY2O5t7+eHGN+S5KT8MCwXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:10:35.500713Z"},"content_sha256":"63f13d797b7a9208c9f792c454fc3fa7719c0fbdc42a86d1335eda6e45a462e6","schema_version":"1.0","event_id":"sha256:63f13d797b7a9208c9f792c454fc3fa7719c0fbdc42a86d1335eda6e45a462e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:IKP6MY542ITYXK52TROIGHYXOC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Nondemolition Gate Operations and Measurements in Real Time on Fluctuating Signals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Akira Furusawa, Jun-ichi Yoshikawa, Kenzo Makino, Peter van Loock, Ryosuke Nakamura, Shigenari Suzuki, Shota Yamazaki, Shota Yokoyama, Shuntaro Takeda, Takahiro Serikawa, Toshiyuki Kaji, Warit Asavanant, Yu Shiozawa","submitted_at":"2017-12-22T12:00:08Z","abstract_excerpt":"We demonstrate an optical quantum nondemolition (QND) interaction gate with a bandwidth of about 100 MHz. Employing this gate, we are able to perform QND measurements in real time on randomly fluctuating signals. Our QND gate relies upon linear optics and offline-prepared squeezed states. In contrast to previous demonstrations on narrow sideband modes, our gate is compatible with non-Gaussian quantum states temporally localized in a wave-packet mode, and thus opens the way for universal gate operations and realization of quantum error correction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.08411","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":"2026-05-18T00:00:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iVyhNUKaj23Rd5ujSZLrq+0KEoJTRRlvhMpyFmDB90iu6i3/vplcxQnw7QhRP+3proJQw9A/tOG8JQV1/7eoBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:10:35.501476Z"},"content_sha256":"3f95c29e8ebeca362dfef0bbc6bb036d1df7a1f4f8cce6410a6cce94125979f8","schema_version":"1.0","event_id":"sha256:3f95c29e8ebeca362dfef0bbc6bb036d1df7a1f4f8cce6410a6cce94125979f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IKP6MY542ITYXK52TROIGHYXOC/bundle.json","state_url":"https://pith.science/pith/IKP6MY542ITYXK52TROIGHYXOC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IKP6MY542ITYXK52TROIGHYXOC/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":"2026-05-30T05:10:35Z","links":{"resolver":"https://pith.science/pith/IKP6MY542ITYXK52TROIGHYXOC","bundle":"https://pith.science/pith/IKP6MY542ITYXK52TROIGHYXOC/bundle.json","state":"https://pith.science/pith/IKP6MY542ITYXK52TROIGHYXOC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IKP6MY542ITYXK52TROIGHYXOC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:IKP6MY542ITYXK52TROIGHYXOC","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":"741b017169803aa136a72e8a8b0ad461d61a0dbd0e65435ff1bf103627c31e3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-22T12:00:08Z","title_canon_sha256":"f337a511f5121e692a03f24e01f2ad432501128460929bf4859253d84735ae18"},"schema_version":"1.0","source":{"id":"1712.08411","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.08411","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"arxiv_version","alias_value":"1712.08411v1","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.08411","created_at":"2026-05-18T00:00:59Z"},{"alias_kind":"pith_short_12","alias_value":"IKP6MY542ITY","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_16","alias_value":"IKP6MY542ITYXK52","created_at":"2026-05-18T12:31:21Z"},{"alias_kind":"pith_short_8","alias_value":"IKP6MY54","created_at":"2026-05-18T12:31:21Z"}],"graph_snapshots":[{"event_id":"sha256:3f95c29e8ebeca362dfef0bbc6bb036d1df7a1f4f8cce6410a6cce94125979f8","target":"graph","created_at":"2026-05-18T00:00:59Z","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":"We demonstrate an optical quantum nondemolition (QND) interaction gate with a bandwidth of about 100 MHz. Employing this gate, we are able to perform QND measurements in real time on randomly fluctuating signals. Our QND gate relies upon linear optics and offline-prepared squeezed states. In contrast to previous demonstrations on narrow sideband modes, our gate is compatible with non-Gaussian quantum states temporally localized in a wave-packet mode, and thus opens the way for universal gate operations and realization of quantum error correction.","authors_text":"Akira Furusawa, Jun-ichi Yoshikawa, Kenzo Makino, Peter van Loock, Ryosuke Nakamura, Shigenari Suzuki, Shota Yamazaki, Shota Yokoyama, Shuntaro Takeda, Takahiro Serikawa, Toshiyuki Kaji, Warit Asavanant, Yu Shiozawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-22T12:00:08Z","title":"Quantum Nondemolition Gate Operations and Measurements in Real Time on Fluctuating Signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.08411","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":"sha256:63f13d797b7a9208c9f792c454fc3fa7719c0fbdc42a86d1335eda6e45a462e6","target":"record","created_at":"2026-05-18T00:00:59Z","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":"741b017169803aa136a72e8a8b0ad461d61a0dbd0e65435ff1bf103627c31e3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-12-22T12:00:08Z","title_canon_sha256":"f337a511f5121e692a03f24e01f2ad432501128460929bf4859253d84735ae18"},"schema_version":"1.0","source":{"id":"1712.08411","kind":"arxiv","version":1}},"canonical_sha256":"429fe663bcd2278babba9c5c831f1770a2d0a1c1ee62fb0e977020ab59283dab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"429fe663bcd2278babba9c5c831f1770a2d0a1c1ee62fb0e977020ab59283dab","first_computed_at":"2026-05-18T00:00:59.517847Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:59.517847Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lXrnDDsZiY5i0UCJSxmHXEihPGHLWma+HQV3Melf3UxnpVocnFfi/ch+hmSp5O0tI08JOGc4veL0A3r/9r8QBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:59.518236Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.08411","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63f13d797b7a9208c9f792c454fc3fa7719c0fbdc42a86d1335eda6e45a462e6","sha256:3f95c29e8ebeca362dfef0bbc6bb036d1df7a1f4f8cce6410a6cce94125979f8"],"state_sha256":"c74c649732c36c05f7a96f4b956e47f5e53a1d96c43d8311109ee39c25612fe8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LyJ8An+OKmMEdA8/xaMaAVBC8nFAyFyJ8p6rhDfETtllu5m0tmbXkFgBXnilXbVoWgeo0VcCJzAC/HZh5FLIAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:10:35.505778Z","bundle_sha256":"6a32f1231747a086f4f47a6a45805f8b869534df623cb26af9cbf5c59891ee8d"}}