{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:EPFTBWQO52XSLMNZD54DE4FZ6K","short_pith_number":"pith:EPFTBWQO","canonical_record":{"source":{"id":"1804.02682","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-08T12:37:45Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"78c97b8b030ced9e16fb9f91a0e3ea02a4fc67a8bb019315b52a5a203a79b6a1","abstract_canon_sha256":"db4e227879c300155b833ce30423312cdd645493059fae853ecac4de7be7891a"},"schema_version":"1.0"},"canonical_sha256":"23cb30da0eeeaf25b1b91f783270b9f2a20d183331dbe6ad0b6a663e17056632","source":{"kind":"arxiv","id":"1804.02682","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02682","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02682v3","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02682","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"EPFTBWQO52XS","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EPFTBWQO52XSLMNZ","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EPFTBWQO","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:EPFTBWQO52XSLMNZD54DE4FZ6K","target":"record","payload":{"canonical_record":{"source":{"id":"1804.02682","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-08T12:37:45Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"78c97b8b030ced9e16fb9f91a0e3ea02a4fc67a8bb019315b52a5a203a79b6a1","abstract_canon_sha256":"db4e227879c300155b833ce30423312cdd645493059fae853ecac4de7be7891a"},"schema_version":"1.0"},"canonical_sha256":"23cb30da0eeeaf25b1b91f783270b9f2a20d183331dbe6ad0b6a663e17056632","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:31.610776Z","signature_b64":"oFoP326JbT8O5e5Z2MiAzy9Fr4SE6y3oX/Y/s7s+a7eAjdqnRyL40CBIP3UpXQhPCQPfBVxVrpbTjZVXXoBUBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23cb30da0eeeaf25b1b91f783270b9f2a20d183331dbe6ad0b6a663e17056632","last_reissued_at":"2026-05-18T00:05:31.610236Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:31.610236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.02682","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xEphv81I88E6DRXCWJI7QxEGwUtaneX96YqlqLecM4jVvEdKiPNns5Reby41bL3wXaPAJtTlR9jlpKmnaXCtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:41:43.768725Z"},"content_sha256":"b89a98b50cd26e50ea515e230133ee20a7c9fcee170005249efa5df877a75833","schema_version":"1.0","event_id":"sha256:b89a98b50cd26e50ea515e230133ee20a7c9fcee170005249efa5df877a75833"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:EPFTBWQO52XSLMNZD54DE4FZ6K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fundamental quantum limits of multi-carrier optomechanical sensors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Animesh Datta, Dominic Branford, Haixing Miao","submitted_at":"2018-04-08T12:37:45Z","abstract_excerpt":"Optomechanical sensors involving multiple optical carriers can experience mechanically mediated interactions causing multi-mode correlations across the optical fields. One instance is laser-interferometric gravitational wave detectors which introduce multiple carrier frequencies for classical sensing and control purposes. An outstanding question is whether such multi-carrier optomechanical sensors outperform their single-carrier counterpart in terms of quantum-limited sensitivity. We show that the best precision is achieved by a single-carrier instance of the sensor. For the current LIGO detec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02682","kind":"arxiv","version":3},"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":"2026-05-18T00:05:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JPMN/PbId3/HrdEKgD9TWs28ZqjMndJ3dHUt5g/89ZOqJuyw0y0EQhrCcJZAxgSvYPS9fN2MQ4KLvLsfqKQQAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:41:43.769420Z"},"content_sha256":"3a0544e0ece527d7728ce7908489ad422fd7f128753141ed30f9af9e65d32110","schema_version":"1.0","event_id":"sha256:3a0544e0ece527d7728ce7908489ad422fd7f128753141ed30f9af9e65d32110"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/bundle.json","state_url":"https://pith.science/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/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":"2026-05-25T23:41:43Z","links":{"resolver":"https://pith.science/pith/EPFTBWQO52XSLMNZD54DE4FZ6K","bundle":"https://pith.science/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/bundle.json","state":"https://pith.science/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EPFTBWQO52XSLMNZD54DE4FZ6K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EPFTBWQO52XSLMNZD54DE4FZ6K","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":"db4e227879c300155b833ce30423312cdd645493059fae853ecac4de7be7891a","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-08T12:37:45Z","title_canon_sha256":"78c97b8b030ced9e16fb9f91a0e3ea02a4fc67a8bb019315b52a5a203a79b6a1"},"schema_version":"1.0","source":{"id":"1804.02682","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.02682","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.02682v3","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.02682","created_at":"2026-05-18T00:05:31Z"},{"alias_kind":"pith_short_12","alias_value":"EPFTBWQO52XS","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EPFTBWQO52XSLMNZ","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EPFTBWQO","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:3a0544e0ece527d7728ce7908489ad422fd7f128753141ed30f9af9e65d32110","target":"graph","created_at":"2026-05-18T00:05:31Z","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":"Optomechanical sensors involving multiple optical carriers can experience mechanically mediated interactions causing multi-mode correlations across the optical fields. One instance is laser-interferometric gravitational wave detectors which introduce multiple carrier frequencies for classical sensing and control purposes. An outstanding question is whether such multi-carrier optomechanical sensors outperform their single-carrier counterpart in terms of quantum-limited sensitivity. We show that the best precision is achieved by a single-carrier instance of the sensor. For the current LIGO detec","authors_text":"Animesh Datta, Dominic Branford, Haixing Miao","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-08T12:37:45Z","title":"Fundamental quantum limits of multi-carrier optomechanical sensors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.02682","kind":"arxiv","version":3},"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:b89a98b50cd26e50ea515e230133ee20a7c9fcee170005249efa5df877a75833","target":"record","created_at":"2026-05-18T00:05:31Z","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":"db4e227879c300155b833ce30423312cdd645493059fae853ecac4de7be7891a","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-04-08T12:37:45Z","title_canon_sha256":"78c97b8b030ced9e16fb9f91a0e3ea02a4fc67a8bb019315b52a5a203a79b6a1"},"schema_version":"1.0","source":{"id":"1804.02682","kind":"arxiv","version":3}},"canonical_sha256":"23cb30da0eeeaf25b1b91f783270b9f2a20d183331dbe6ad0b6a663e17056632","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23cb30da0eeeaf25b1b91f783270b9f2a20d183331dbe6ad0b6a663e17056632","first_computed_at":"2026-05-18T00:05:31.610236Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:31.610236Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oFoP326JbT8O5e5Z2MiAzy9Fr4SE6y3oX/Y/s7s+a7eAjdqnRyL40CBIP3UpXQhPCQPfBVxVrpbTjZVXXoBUBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:31.610776Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.02682","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b89a98b50cd26e50ea515e230133ee20a7c9fcee170005249efa5df877a75833","sha256:3a0544e0ece527d7728ce7908489ad422fd7f128753141ed30f9af9e65d32110"],"state_sha256":"48a72a01546767ca49d172c83744b6324eb6c63be9cf2765b00ea491f0470fc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"08uVD9T+CZ1lWuPPz23ODJmnXH+dM+Zl7lrq5E2xy3Tk7gY47MAcRdZ99Gq47XTJHygVsJofJAay/yn27lWjBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:41:43.772566Z","bundle_sha256":"79e3075dd17d8213294bc2942626f1dfeb97322d75ddbdec399cdd8234650c55"}}