{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1999:2LPYCEIO2IG75IFXL24CJQQJ3A","short_pith_number":"pith:2LPYCEIO","canonical_record":{"source":{"id":"quant-ph/9904073","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-04-19T13:48:20Z","cross_cats_sorted":[],"title_canon_sha256":"3d26b78e477a7752246169493ca014addb7affd036c35cbbdea5d06e19b44d24","abstract_canon_sha256":"73ff4eaa080719b30450299b8ea255bd8f591e245b1f7940eb52b38ccc87b815"},"schema_version":"1.0"},"canonical_sha256":"d2df81110ed20dfea0b75eb824c209d831853685d037274ce686f75c133b13e5","source":{"kind":"arxiv","id":"quant-ph/9904073","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9904073","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9904073v2","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9904073","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"2LPYCEIO2IG7","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"2LPYCEIO2IG75IFX","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"2LPYCEIO","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1999:2LPYCEIO2IG75IFXL24CJQQJ3A","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/9904073","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"1999-04-19T13:48:20Z","cross_cats_sorted":[],"title_canon_sha256":"3d26b78e477a7752246169493ca014addb7affd036c35cbbdea5d06e19b44d24","abstract_canon_sha256":"73ff4eaa080719b30450299b8ea255bd8f591e245b1f7940eb52b38ccc87b815"},"schema_version":"1.0"},"canonical_sha256":"d2df81110ed20dfea0b75eb824c209d831853685d037274ce686f75c133b13e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:52.542841Z","signature_b64":"wyIynk+bep7sMJ5sZvCtWFneOBWzdcy7NBgRSisgL74Kwr7gy3b3QoFxmC3fOSPF22mhfFDP/Dzfc0Z25x19CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2df81110ed20dfea0b75eb824c209d831853685d037274ce686f75c133b13e5","last_reissued_at":"2026-05-18T01:37:52.542189Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:52.542189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/9904073","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":"2026-05-18T01:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X81p9CIvwpvA5J0lQ/yAy+ZppcXO0kubHhUNvCvtD1dW1jvup/RlbEcEv3POpdVNHPZzFt5yG70AQ4ylDm3+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:47:45.084912Z"},"content_sha256":"810901d3a6fe5e97f9d7d5082aa88831c293d8fe26d9de78d6be109aecb2c1ff","schema_version":"1.0","event_id":"sha256:810901d3a6fe5e97f9d7d5082aa88831c293d8fe26d9de78d6be109aecb2c1ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1999:2LPYCEIO2IG75IFXL24CJQQJ3A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum theory of fluctuations in a cold damped accelerometer","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Francesca Grassia, Jean-Michel Courty, ONERA), Pierre Touboul(Departement de Mesures Physiques, Serge Reynaud (Laboratoire Kastler Brossel)","submitted_at":"1999-04-19T13:48:20Z","abstract_excerpt":"We present a quantum network approach to real high sensitivity measurements. Thermal and quantum fluctuations due to active as well as passive elements are taken into account. The method is applied to the analysis of the capacitive accelerometer using the cold damping technique, developed for fundamental physics in space by ONERA and the ultimate limits of this instrument are discussed. It is confirmed in this quantum analysis that the cold damping technique allows one to control efficiently the test mass motion without degrading the noise level."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9904073","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":"2026-05-18T01:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7N0PlhhdvS3zqQEpARUxhtSBHV3K8SzH1pxmM85qfGO+Otz3WRqeNJAVsZBvmJdJcfiIXtd5TWFO7dq7eAmdDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:47:45.085482Z"},"content_sha256":"c0b164a6f5906c3e6ea0995d6ef744acafdd5fe3dc29dc582318fa936d61e083","schema_version":"1.0","event_id":"sha256:c0b164a6f5906c3e6ea0995d6ef744acafdd5fe3dc29dc582318fa936d61e083"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/bundle.json","state_url":"https://pith.science/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/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":"2026-06-05T04:47:45Z","links":{"resolver":"https://pith.science/pith/2LPYCEIO2IG75IFXL24CJQQJ3A","bundle":"https://pith.science/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/bundle.json","state":"https://pith.science/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2LPYCEIO2IG75IFXL24CJQQJ3A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:2LPYCEIO2IG75IFXL24CJQQJ3A","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":"73ff4eaa080719b30450299b8ea255bd8f591e245b1f7940eb52b38ccc87b815","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-04-19T13:48:20Z","title_canon_sha256":"3d26b78e477a7752246169493ca014addb7affd036c35cbbdea5d06e19b44d24"},"schema_version":"1.0","source":{"id":"quant-ph/9904073","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/9904073","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/9904073v2","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/9904073","created_at":"2026-05-18T01:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"2LPYCEIO2IG7","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"2LPYCEIO2IG75IFX","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"2LPYCEIO","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:c0b164a6f5906c3e6ea0995d6ef744acafdd5fe3dc29dc582318fa936d61e083","target":"graph","created_at":"2026-05-18T01:37:52Z","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":"We present a quantum network approach to real high sensitivity measurements. Thermal and quantum fluctuations due to active as well as passive elements are taken into account. The method is applied to the analysis of the capacitive accelerometer using the cold damping technique, developed for fundamental physics in space by ONERA and the ultimate limits of this instrument are discussed. It is confirmed in this quantum analysis that the cold damping technique allows one to control efficiently the test mass motion without degrading the noise level.","authors_text":"Francesca Grassia, Jean-Michel Courty, ONERA), Pierre Touboul(Departement de Mesures Physiques, Serge Reynaud (Laboratoire Kastler Brossel)","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"1999-04-19T13:48:20Z","title":"Quantum theory of fluctuations in a cold damped accelerometer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/9904073","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":"sha256:810901d3a6fe5e97f9d7d5082aa88831c293d8fe26d9de78d6be109aecb2c1ff","target":"record","created_at":"2026-05-18T01:37:52Z","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":"73ff4eaa080719b30450299b8ea255bd8f591e245b1f7940eb52b38ccc87b815","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"1999-04-19T13:48:20Z","title_canon_sha256":"3d26b78e477a7752246169493ca014addb7affd036c35cbbdea5d06e19b44d24"},"schema_version":"1.0","source":{"id":"quant-ph/9904073","kind":"arxiv","version":2}},"canonical_sha256":"d2df81110ed20dfea0b75eb824c209d831853685d037274ce686f75c133b13e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2df81110ed20dfea0b75eb824c209d831853685d037274ce686f75c133b13e5","first_computed_at":"2026-05-18T01:37:52.542189Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:52.542189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wyIynk+bep7sMJ5sZvCtWFneOBWzdcy7NBgRSisgL74Kwr7gy3b3QoFxmC3fOSPF22mhfFDP/Dzfc0Z25x19CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:52.542841Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/9904073","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:810901d3a6fe5e97f9d7d5082aa88831c293d8fe26d9de78d6be109aecb2c1ff","sha256:c0b164a6f5906c3e6ea0995d6ef744acafdd5fe3dc29dc582318fa936d61e083"],"state_sha256":"5f16b7a9fa6d0fa3991fb236643d2aecbc50795dd62e9a66c1530e63f9f7a4e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HpcDRTFNOf6vUa1GaM9lQVnsCKGqQDzCMjvCEaQKAX9P1DykQbPjjUhq5wjEDyFkg8JPYh4oadQ+nT+FoWOBCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T04:47:45.088631Z","bundle_sha256":"d793c23e83b09c3d00198691f743ff0157a4f03ab8efe8eadbca3472760d7bd6"}}