{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:TL7TMDXBE5BCHLSL2UXBNNDOTC","short_pith_number":"pith:TL7TMDXB","canonical_record":{"source":{"id":"1406.6466","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-25T05:41:28Z","cross_cats_sorted":[],"title_canon_sha256":"077ac0d77e9795245995c7a50adddd6807c79685a385cc00fe6b3b43a5879ae4","abstract_canon_sha256":"924fe350187435906223150c9121165f190349f721683d924b6f183f0082a407"},"schema_version":"1.0"},"canonical_sha256":"9aff360ee1274223ae4bd52e16b46e98bb058563214d73784cc6f73514fc3e6c","source":{"kind":"arxiv","id":"1406.6466","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6466","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6466v2","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6466","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"TL7TMDXBE5BC","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TL7TMDXBE5BCHLSL","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TL7TMDXB","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:TL7TMDXBE5BCHLSL2UXBNNDOTC","target":"record","payload":{"canonical_record":{"source":{"id":"1406.6466","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-25T05:41:28Z","cross_cats_sorted":[],"title_canon_sha256":"077ac0d77e9795245995c7a50adddd6807c79685a385cc00fe6b3b43a5879ae4","abstract_canon_sha256":"924fe350187435906223150c9121165f190349f721683d924b6f183f0082a407"},"schema_version":"1.0"},"canonical_sha256":"9aff360ee1274223ae4bd52e16b46e98bb058563214d73784cc6f73514fc3e6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:52.140190Z","signature_b64":"8nsFvmdkHgovnRUZs94nlcp8V7WmhQ687y6HQkfGIqYfbxbxpyOdKWDDppW3tCHEtaO1qzSLXnYr4CuyeTOwDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9aff360ee1274223ae4bd52e16b46e98bb058563214d73784cc6f73514fc3e6c","last_reissued_at":"2026-05-18T02:34:52.139832Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:52.139832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.6466","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cEIpylAQjmppDUj0QE5xjLqDmi754UtWkE1sid+yyJnxWBw/5s6mjyIoIC6Oyb+LIi1X90+lUqycqyMpreGQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:17:54.588411Z"},"content_sha256":"de403ee8ac1a4e6a798a2dd155046bfe8f3a365dfdbd196cbcadcf2224850d62","schema_version":"1.0","event_id":"sha256:de403ee8ac1a4e6a798a2dd155046bfe8f3a365dfdbd196cbcadcf2224850d62"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:TL7TMDXBE5BCHLSL2UXBNNDOTC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent versus measurement feedback: Linear systems theory for quantum information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Naoki Yamamoto","submitted_at":"2014-06-25T05:41:28Z","abstract_excerpt":"To control a quantum system via feedback, we generally have two options in choosing control scheme. One is the coherent feedback, which feeds the output field of the system, through a fully quantum device, back to manipulate the system without involving any measurement process. The other one is the measurement-based feedback, which measures the output field and performs a real-time manipulation on the system based on the measurement results. Both schemes have advantages/disadvantages, depending on the system and the control goal, hence their comparison in several situation is important. This p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6466","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":"2026-05-18T02:34:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fmSiy+LMiBdOpgnw5wjV5jC029WmEqumZtsQvv7e+KVIU13OFVZOE9Go6WWkBKlvqcIQsS2lDV1APIASiwa7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T21:17:54.589081Z"},"content_sha256":"23906e4cf38a72b128be53cf2a1801c189293d392e0d83d5f3bd45e220f3ae80","schema_version":"1.0","event_id":"sha256:23906e4cf38a72b128be53cf2a1801c189293d392e0d83d5f3bd45e220f3ae80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/bundle.json","state_url":"https://pith.science/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/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":"2026-05-18T21:17:54Z","links":{"resolver":"https://pith.science/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC","bundle":"https://pith.science/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/bundle.json","state":"https://pith.science/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TL7TMDXBE5BCHLSL2UXBNNDOTC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:TL7TMDXBE5BCHLSL2UXBNNDOTC","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":"924fe350187435906223150c9121165f190349f721683d924b6f183f0082a407","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-25T05:41:28Z","title_canon_sha256":"077ac0d77e9795245995c7a50adddd6807c79685a385cc00fe6b3b43a5879ae4"},"schema_version":"1.0","source":{"id":"1406.6466","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6466","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6466v2","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6466","created_at":"2026-05-18T02:34:52Z"},{"alias_kind":"pith_short_12","alias_value":"TL7TMDXBE5BC","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"TL7TMDXBE5BCHLSL","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"TL7TMDXB","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:23906e4cf38a72b128be53cf2a1801c189293d392e0d83d5f3bd45e220f3ae80","target":"graph","created_at":"2026-05-18T02:34:52Z","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":"To control a quantum system via feedback, we generally have two options in choosing control scheme. One is the coherent feedback, which feeds the output field of the system, through a fully quantum device, back to manipulate the system without involving any measurement process. The other one is the measurement-based feedback, which measures the output field and performs a real-time manipulation on the system based on the measurement results. Both schemes have advantages/disadvantages, depending on the system and the control goal, hence their comparison in several situation is important. This p","authors_text":"Naoki Yamamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-25T05:41:28Z","title":"Coherent versus measurement feedback: Linear systems theory for quantum information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6466","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:de403ee8ac1a4e6a798a2dd155046bfe8f3a365dfdbd196cbcadcf2224850d62","target":"record","created_at":"2026-05-18T02:34:52Z","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":"924fe350187435906223150c9121165f190349f721683d924b6f183f0082a407","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-06-25T05:41:28Z","title_canon_sha256":"077ac0d77e9795245995c7a50adddd6807c79685a385cc00fe6b3b43a5879ae4"},"schema_version":"1.0","source":{"id":"1406.6466","kind":"arxiv","version":2}},"canonical_sha256":"9aff360ee1274223ae4bd52e16b46e98bb058563214d73784cc6f73514fc3e6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9aff360ee1274223ae4bd52e16b46e98bb058563214d73784cc6f73514fc3e6c","first_computed_at":"2026-05-18T02:34:52.139832Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:52.139832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8nsFvmdkHgovnRUZs94nlcp8V7WmhQ687y6HQkfGIqYfbxbxpyOdKWDDppW3tCHEtaO1qzSLXnYr4CuyeTOwDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:52.140190Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.6466","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de403ee8ac1a4e6a798a2dd155046bfe8f3a365dfdbd196cbcadcf2224850d62","sha256:23906e4cf38a72b128be53cf2a1801c189293d392e0d83d5f3bd45e220f3ae80"],"state_sha256":"858bcd37d74a52287d5fd6bd135906b08ecb70721b17f03ca357fcecd777631e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C6PHA+0ut9hGIwCWFdPg9ME+1M6gBvZNbYQ+Q1mHsg/DKJt/k49XeFkMUQBwZrpAOqQ4kub7SKggQ67ifFeeAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T21:17:54.591168Z","bundle_sha256":"1d0122105d0c7a4816978195a70cd1c21dab86568c40b3b171726bcd7672a05b"}}