{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:EFOCOEP2B27RARGURB2GUQ5ZNV","short_pith_number":"pith:EFOCOEP2","canonical_record":{"source":{"id":"quant-ph/9803045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1998-03-17T15:27:14Z","cross_cats_sorted":[],"title_canon_sha256":"4cec0edc6bd33d61f7b8b473198d164c5b231f3a2f0705d4c3c6f08554c39b99","abstract_canon_sha256":"dc4b9e96d473a19fae6cfbf05995f7d326e1619be94371ea5058f06faba04650"},"schema_version":"1.0"},"canonical_sha256":"215c2711fa0ebf1044d488746a43b96d6071271383bba054743d807d302b9768","source":{"kind":"arxiv","id":"quant-ph/9803045","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9803045","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9803045v1","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9803045","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_12","alias_value":"EFOCOEP2B27R","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_16","alias_value":"EFOCOEP2B27RARGU","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_8","alias_value":"EFOCOEP2","created_at":"2026-07-04T16:10:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:EFOCOEP2B27RARGURB2GUQ5ZNV","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/9803045","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1998-03-17T15:27:14Z","cross_cats_sorted":[],"title_canon_sha256":"4cec0edc6bd33d61f7b8b473198d164c5b231f3a2f0705d4c3c6f08554c39b99","abstract_canon_sha256":"dc4b9e96d473a19fae6cfbf05995f7d326e1619be94371ea5058f06faba04650"},"schema_version":"1.0"},"canonical_sha256":"215c2711fa0ebf1044d488746a43b96d6071271383bba054743d807d302b9768","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:10:28.462024Z","signature_b64":"GMoTbM5M63NpBZ922X4IMGem4V1g8cmdLlpF3MjN3HBplxnuY5kMVUGKtqSK+lG89H6eui+figmPGXbkctoABA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"215c2711fa0ebf1044d488746a43b96d6071271383bba054743d807d302b9768","last_reissued_at":"2026-07-04T16:10:28.461624Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:10:28.461624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/9803045","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":"2026-07-04T16:10:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oHX8VDIpLfqhoxYn0fDTJvYJekBP6M29l/v3tn+V8Fipvp5V8IZ25Ne+kGiPOkuYkmOG92WN050kv9yN/BPqAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T03:00:02.010728Z"},"content_sha256":"b8b13174231d32f25e1acfdc278f169c640c704136f9bd71763ea26cc9ccee32","schema_version":"1.0","event_id":"sha256:b8b13174231d32f25e1acfdc278f169c640c704136f9bd71763ea26cc9ccee32"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:EFOCOEP2B27RARGURB2GUQ5ZNV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum State Protection in Cavities","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"David Vitali, Gerard J. Milburn, Paolo Tombesi","submitted_at":"1998-03-17T15:27:14Z","abstract_excerpt":"We show how an initially prepared quantum state of a radiation mode in a cavity can be preserved for a long time using a feedback scheme based on the injection of appropriately prepared atoms. We present a feedback scheme both for optical cavities, which can be continuously monitored by a photodetector, and for microwave cavities, which can be monitored only indirectly via the detection of atoms that have interacted with the cavity field. We also discuss the possibility of applying these methods for decoherence control in quantum information processing."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9803045","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/9803045/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T16:10:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YBaA6tS6bfY7Uy8G/bwVffzhJxoK6fg7JvH+T+835HAE5y4nYBJjtbyeLQnih/e6A5W8lTu/vLTc+22eAjBTDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T03:00:02.011541Z"},"content_sha256":"4a5e15496511f3d1a593626dc429137bc8ab0a7c41675d9c1e5ad71ef63dbe0f","schema_version":"1.0","event_id":"sha256:4a5e15496511f3d1a593626dc429137bc8ab0a7c41675d9c1e5ad71ef63dbe0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/bundle.json","state_url":"https://pith.science/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/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":"2026-08-18T03:00:02Z","links":{"resolver":"https://pith.science/pith/EFOCOEP2B27RARGURB2GUQ5ZNV","bundle":"https://pith.science/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/bundle.json","state":"https://pith.science/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EFOCOEP2B27RARGURB2GUQ5ZNV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:EFOCOEP2B27RARGURB2GUQ5ZNV","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":"dc4b9e96d473a19fae6cfbf05995f7d326e1619be94371ea5058f06faba04650","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1998-03-17T15:27:14Z","title_canon_sha256":"4cec0edc6bd33d61f7b8b473198d164c5b231f3a2f0705d4c3c6f08554c39b99"},"schema_version":"1.0","source":{"id":"quant-ph/9803045","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9803045","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9803045v1","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9803045","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_12","alias_value":"EFOCOEP2B27R","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_16","alias_value":"EFOCOEP2B27RARGU","created_at":"2026-07-04T16:10:28Z"},{"alias_kind":"pith_short_8","alias_value":"EFOCOEP2","created_at":"2026-07-04T16:10:28Z"}],"graph_snapshots":[{"event_id":"sha256:4a5e15496511f3d1a593626dc429137bc8ab0a7c41675d9c1e5ad71ef63dbe0f","target":"graph","created_at":"2026-07-04T16:10:28Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/quant-ph/9803045/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We show how an initially prepared quantum state of a radiation mode in a cavity can be preserved for a long time using a feedback scheme based on the injection of appropriately prepared atoms. We present a feedback scheme both for optical cavities, which can be continuously monitored by a photodetector, and for microwave cavities, which can be monitored only indirectly via the detection of atoms that have interacted with the cavity field. We also discuss the possibility of applying these methods for decoherence control in quantum information processing.","authors_text":"David Vitali, Gerard J. Milburn, Paolo Tombesi","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1998-03-17T15:27:14Z","title":"Quantum State Protection in Cavities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9803045","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:b8b13174231d32f25e1acfdc278f169c640c704136f9bd71763ea26cc9ccee32","target":"record","created_at":"2026-07-04T16:10:28Z","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":"dc4b9e96d473a19fae6cfbf05995f7d326e1619be94371ea5058f06faba04650","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1998-03-17T15:27:14Z","title_canon_sha256":"4cec0edc6bd33d61f7b8b473198d164c5b231f3a2f0705d4c3c6f08554c39b99"},"schema_version":"1.0","source":{"id":"quant-ph/9803045","kind":"arxiv","version":1}},"canonical_sha256":"215c2711fa0ebf1044d488746a43b96d6071271383bba054743d807d302b9768","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"215c2711fa0ebf1044d488746a43b96d6071271383bba054743d807d302b9768","first_computed_at":"2026-07-04T16:10:28.461624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:10:28.461624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GMoTbM5M63NpBZ922X4IMGem4V1g8cmdLlpF3MjN3HBplxnuY5kMVUGKtqSK+lG89H6eui+figmPGXbkctoABA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:10:28.462024Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9803045","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8b13174231d32f25e1acfdc278f169c640c704136f9bd71763ea26cc9ccee32","sha256:4a5e15496511f3d1a593626dc429137bc8ab0a7c41675d9c1e5ad71ef63dbe0f"],"state_sha256":"ac15684f85d8124ce4144d0f71e9c1dfe5fca0adf0cff57a67d0952bf916a71a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oy6wwg+dCANchgmi73VLV2dgUm9eOLvciUKUK/QJDbRlcQxbTf9JAOYdxnu9s6PA74gz7VvdHAzJjY4T6wVAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T03:00:02.016881Z","bundle_sha256":"b65000a6e7f4eb15bbc2afbb95891ace02b823ab422160b45440777675c23f3e"}}