{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:VGRUSM3SANNDLJVD33NYALBWUH","short_pith_number":"pith:VGRUSM3S","canonical_record":{"source":{"id":"2210.07674","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-14T09:57:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"8ad9f07171c2d0c77c687bf90213db522556c6a530a465a5fa6bde167ea040fa","abstract_canon_sha256":"cc6f9197792a4895996f893f28fb7b8fa48fd8ba232c3fc600a09845628afeb0"},"schema_version":"1.0"},"canonical_sha256":"a9a3493372035a35a6a3dedb802c36a1c514acd6eabe8a21057f217a2faf47da","source":{"kind":"arxiv","id":"2210.07674","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.07674","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"arxiv_version","alias_value":"2210.07674v2","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.07674","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_12","alias_value":"VGRUSM3SANND","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_16","alias_value":"VGRUSM3SANNDLJVD","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_8","alias_value":"VGRUSM3S","created_at":"2026-07-05T07:24:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:VGRUSM3SANNDLJVD33NYALBWUH","target":"record","payload":{"canonical_record":{"source":{"id":"2210.07674","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-14T09:57:04Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"8ad9f07171c2d0c77c687bf90213db522556c6a530a465a5fa6bde167ea040fa","abstract_canon_sha256":"cc6f9197792a4895996f893f28fb7b8fa48fd8ba232c3fc600a09845628afeb0"},"schema_version":"1.0"},"canonical_sha256":"a9a3493372035a35a6a3dedb802c36a1c514acd6eabe8a21057f217a2faf47da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:24:46.752584Z","signature_b64":"GAIwhqcvuN7k3o1E5GUaYq4+cRB0rXg+HyUI6GuMbaur39wPgYidDBdSVq/v3e0IsXhC5HPHe0+06GPDp1dqCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9a3493372035a35a6a3dedb802c36a1c514acd6eabe8a21057f217a2faf47da","last_reissued_at":"2026-07-05T07:24:46.752162Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:24:46.752162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.07674","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":"2026-07-05T07:24:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AmrOVnF1ZgNiehiSzEGQNVlk62AJHf2eVqveChsDPiRkwV+4u8PczZ+7e1LphDnYDf1/OUyQ80t74bDOhDDQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:39:09.794542Z"},"content_sha256":"e59bc77ded59d608368e3676bb27b0848030e497fb68f2eab01f755805f9e33d","schema_version":"1.0","event_id":"sha256:e59bc77ded59d608368e3676bb27b0848030e497fb68f2eab01f755805f9e33d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:VGRUSM3SANNDLJVD33NYALBWUH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical coherent feedback control of a mechanical oscillator","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Christoph Bruder, Gian-Luca Schmid, Manel Bosch Aguilera, Maryse Ernzer, Matteo Brunelli, Patrick P. Potts, Philipp Treutlein, Thomas M. Karg","submitted_at":"2022-10-14T09:57:04Z","abstract_excerpt":"Feedback is a powerful and ubiquitous technique both in classical and quantum system control. Its standard implementation relies on measuring the state of a system, processing the classical signal, and feeding it back to the system. In quantum physics, however, measurements not only read out the state of the system but also modify it irreversibly. Coherent feedback is a different kind of feedback that coherently processes and feeds back quantum signals without actually measuring the system. Here, we report on the experimental realization and the theoretical analysis of an optical coherent feed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.07674","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2210.07674/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":"2026-07-05T07:24:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kSe5sJ1pfIvAJMZKzZVuoPH/C3IwluuZGiFk0K0vTouBob9Y70QoAXgkq8TpIcC1RbnZKVPbzrREtU1Zt174AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T08:39:09.794916Z"},"content_sha256":"68049fc34efbde7e2a9db3a69b767c0f961f2e163717691d4cca1af2fd663cf9","schema_version":"1.0","event_id":"sha256:68049fc34efbde7e2a9db3a69b767c0f961f2e163717691d4cca1af2fd663cf9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VGRUSM3SANNDLJVD33NYALBWUH/bundle.json","state_url":"https://pith.science/pith/VGRUSM3SANNDLJVD33NYALBWUH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VGRUSM3SANNDLJVD33NYALBWUH/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":"2026-07-07T08:39:09Z","links":{"resolver":"https://pith.science/pith/VGRUSM3SANNDLJVD33NYALBWUH","bundle":"https://pith.science/pith/VGRUSM3SANNDLJVD33NYALBWUH/bundle.json","state":"https://pith.science/pith/VGRUSM3SANNDLJVD33NYALBWUH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VGRUSM3SANNDLJVD33NYALBWUH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:VGRUSM3SANNDLJVD33NYALBWUH","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":"cc6f9197792a4895996f893f28fb7b8fa48fd8ba232c3fc600a09845628afeb0","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-14T09:57:04Z","title_canon_sha256":"8ad9f07171c2d0c77c687bf90213db522556c6a530a465a5fa6bde167ea040fa"},"schema_version":"1.0","source":{"id":"2210.07674","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.07674","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"arxiv_version","alias_value":"2210.07674v2","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.07674","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_12","alias_value":"VGRUSM3SANND","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_16","alias_value":"VGRUSM3SANNDLJVD","created_at":"2026-07-05T07:24:46Z"},{"alias_kind":"pith_short_8","alias_value":"VGRUSM3S","created_at":"2026-07-05T07:24:46Z"}],"graph_snapshots":[{"event_id":"sha256:68049fc34efbde7e2a9db3a69b767c0f961f2e163717691d4cca1af2fd663cf9","target":"graph","created_at":"2026-07-05T07:24:46Z","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/2210.07674/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Feedback is a powerful and ubiquitous technique both in classical and quantum system control. Its standard implementation relies on measuring the state of a system, processing the classical signal, and feeding it back to the system. In quantum physics, however, measurements not only read out the state of the system but also modify it irreversibly. Coherent feedback is a different kind of feedback that coherently processes and feeds back quantum signals without actually measuring the system. Here, we report on the experimental realization and the theoretical analysis of an optical coherent feed","authors_text":"Christoph Bruder, Gian-Luca Schmid, Manel Bosch Aguilera, Maryse Ernzer, Matteo Brunelli, Patrick P. Potts, Philipp Treutlein, Thomas M. Karg","cross_cats":["physics.optics"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-14T09:57:04Z","title":"Optical coherent feedback control of a mechanical oscillator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.07674","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:e59bc77ded59d608368e3676bb27b0848030e497fb68f2eab01f755805f9e33d","target":"record","created_at":"2026-07-05T07:24:46Z","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":"cc6f9197792a4895996f893f28fb7b8fa48fd8ba232c3fc600a09845628afeb0","cross_cats_sorted":["physics.optics"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-10-14T09:57:04Z","title_canon_sha256":"8ad9f07171c2d0c77c687bf90213db522556c6a530a465a5fa6bde167ea040fa"},"schema_version":"1.0","source":{"id":"2210.07674","kind":"arxiv","version":2}},"canonical_sha256":"a9a3493372035a35a6a3dedb802c36a1c514acd6eabe8a21057f217a2faf47da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9a3493372035a35a6a3dedb802c36a1c514acd6eabe8a21057f217a2faf47da","first_computed_at":"2026-07-05T07:24:46.752162Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:24:46.752162Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GAIwhqcvuN7k3o1E5GUaYq4+cRB0rXg+HyUI6GuMbaur39wPgYidDBdSVq/v3e0IsXhC5HPHe0+06GPDp1dqCw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:24:46.752584Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.07674","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e59bc77ded59d608368e3676bb27b0848030e497fb68f2eab01f755805f9e33d","sha256:68049fc34efbde7e2a9db3a69b767c0f961f2e163717691d4cca1af2fd663cf9"],"state_sha256":"e71790796e68fa02d581d31456e9bb65ae4fff41cb4604b7dea6a34321f97497"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+EOmwKMV27ukvQG/Cz6GrpiTLl1gy4zxJ0XE2iSnrxxHOJkgmCcbzCtUYuhvqDOpI9t1g3vOhR2qb9jQT7RFCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T08:39:09.796883Z","bundle_sha256":"7cb6cb653315f804ebae291dc3c663f3eebaa80f02f74fe3757353a7564ee958"}}