{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:QC2JLXO5BUUWTWO4YALJF3IBNJ","short_pith_number":"pith:QC2JLXO5","canonical_record":{"source":{"id":"0805.3960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-05-26T14:05:55Z","cross_cats_sorted":[],"title_canon_sha256":"4e8422b7dad463d65bb0189fcd138b1084090b68a2396572e052d6a914356b6c","abstract_canon_sha256":"ccb9618df0c5ba0185b059a01943ef2cbb36460f55355e1c578f147dd1bf03e8"},"schema_version":"1.0"},"canonical_sha256":"80b495dddd0d2969d9dcc01692ed016a7a1ee5c71429141be77f12dc318b2be2","source":{"kind":"arxiv","id":"0805.3960","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3960","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3960v1","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3960","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_12","alias_value":"QC2JLXO5BUUW","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_16","alias_value":"QC2JLXO5BUUWTWO4","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_8","alias_value":"QC2JLXO5","created_at":"2026-07-04T15:34:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:QC2JLXO5BUUWTWO4YALJF3IBNJ","target":"record","payload":{"canonical_record":{"source":{"id":"0805.3960","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-05-26T14:05:55Z","cross_cats_sorted":[],"title_canon_sha256":"4e8422b7dad463d65bb0189fcd138b1084090b68a2396572e052d6a914356b6c","abstract_canon_sha256":"ccb9618df0c5ba0185b059a01943ef2cbb36460f55355e1c578f147dd1bf03e8"},"schema_version":"1.0"},"canonical_sha256":"80b495dddd0d2969d9dcc01692ed016a7a1ee5c71429141be77f12dc318b2be2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:34:07.824601Z","signature_b64":"+YIzJ7bpvY2soA91F+P+kBtiwcDQuOs51QcfkA5nelN/9vv5mlGvUVqHR2l0QJZZWAmbYf8eH79Vu1pgkOLmBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80b495dddd0d2969d9dcc01692ed016a7a1ee5c71429141be77f12dc318b2be2","last_reissued_at":"2026-07-04T15:34:07.824110Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:34:07.824110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0805.3960","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":"2026-07-04T15:34:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2ztBXyh040jBk1hDf9uSPd8Nl49fwt2Fd3umPWlyWeDx3UECGrxEjjfEtlZ/rIOR6YfpTwlibpvxiE1Augt3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T23:07:51.587971Z"},"content_sha256":"be9a496d6db7eb5b13f85120b000dce84ae363518c379de4ce769fdd739dc038","schema_version":"1.0","event_id":"sha256:be9a496d6db7eb5b13f85120b000dce84ae363518c379de4ce769fdd739dc038"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:QC2JLXO5BUUWTWO4YALJF3IBNJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Development of signal-extraction scheme for Resonant Sideband Extraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. Sugamoto, F. Kawazoe, K. Kokeyama, K. Somiya, S. Kawamura, S. Sato","submitted_at":"2008-05-26T14:05:55Z","abstract_excerpt":"As a future plan, an advanced gravitational-wave detector will employ an optical configuration of resonant sideband extraction (RSE), achieved with an additional mirror at the signal-detection port of the power-recycled Fabry-Perot Michelson interferometer. To control the complex coupled cavity system, one of the most important design issues is how to extract the longitudinal control signals of the cavities. We developed a new signal-extraction scheme which provides an appropriate sensing matrix. The new method uses two sets of sidebands: one of the sideband components satisfies the critical c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3960","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/0805.3960/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":"2026-07-04T15:34:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/4gSGsWR7rs4y6ltfbUa96KRR3v5ph3QoRmA/PCznGy4+ryj3K19YU7GtZ3IdF/Cw44YJWdRUx59ociFXR26Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T23:07:51.588360Z"},"content_sha256":"ad2a96d2da2cc6bc2c7f5fdf76f033d12d5b5acfbee43136865bf5e94576b63c","schema_version":"1.0","event_id":"sha256:ad2a96d2da2cc6bc2c7f5fdf76f033d12d5b5acfbee43136865bf5e94576b63c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/bundle.json","state_url":"https://pith.science/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/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":"2026-07-25T23:07:51Z","links":{"resolver":"https://pith.science/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ","bundle":"https://pith.science/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/bundle.json","state":"https://pith.science/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QC2JLXO5BUUWTWO4YALJF3IBNJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:QC2JLXO5BUUWTWO4YALJF3IBNJ","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":"ccb9618df0c5ba0185b059a01943ef2cbb36460f55355e1c578f147dd1bf03e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-05-26T14:05:55Z","title_canon_sha256":"4e8422b7dad463d65bb0189fcd138b1084090b68a2396572e052d6a914356b6c"},"schema_version":"1.0","source":{"id":"0805.3960","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.3960","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"arxiv_version","alias_value":"0805.3960v1","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.3960","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_12","alias_value":"QC2JLXO5BUUW","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_16","alias_value":"QC2JLXO5BUUWTWO4","created_at":"2026-07-04T15:34:07Z"},{"alias_kind":"pith_short_8","alias_value":"QC2JLXO5","created_at":"2026-07-04T15:34:07Z"}],"graph_snapshots":[{"event_id":"sha256:ad2a96d2da2cc6bc2c7f5fdf76f033d12d5b5acfbee43136865bf5e94576b63c","target":"graph","created_at":"2026-07-04T15:34:07Z","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/0805.3960/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As a future plan, an advanced gravitational-wave detector will employ an optical configuration of resonant sideband extraction (RSE), achieved with an additional mirror at the signal-detection port of the power-recycled Fabry-Perot Michelson interferometer. To control the complex coupled cavity system, one of the most important design issues is how to extract the longitudinal control signals of the cavities. We developed a new signal-extraction scheme which provides an appropriate sensing matrix. The new method uses two sets of sidebands: one of the sideband components satisfies the critical c","authors_text":"A. Sugamoto, F. Kawazoe, K. Kokeyama, K. Somiya, S. Kawamura, S. Sato","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-05-26T14:05:55Z","title":"Development of signal-extraction scheme for Resonant Sideband Extraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.3960","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:be9a496d6db7eb5b13f85120b000dce84ae363518c379de4ce769fdd739dc038","target":"record","created_at":"2026-07-04T15:34:07Z","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":"ccb9618df0c5ba0185b059a01943ef2cbb36460f55355e1c578f147dd1bf03e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2008-05-26T14:05:55Z","title_canon_sha256":"4e8422b7dad463d65bb0189fcd138b1084090b68a2396572e052d6a914356b6c"},"schema_version":"1.0","source":{"id":"0805.3960","kind":"arxiv","version":1}},"canonical_sha256":"80b495dddd0d2969d9dcc01692ed016a7a1ee5c71429141be77f12dc318b2be2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80b495dddd0d2969d9dcc01692ed016a7a1ee5c71429141be77f12dc318b2be2","first_computed_at":"2026-07-04T15:34:07.824110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:34:07.824110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+YIzJ7bpvY2soA91F+P+kBtiwcDQuOs51QcfkA5nelN/9vv5mlGvUVqHR2l0QJZZWAmbYf8eH79Vu1pgkOLmBg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:34:07.824601Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.3960","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be9a496d6db7eb5b13f85120b000dce84ae363518c379de4ce769fdd739dc038","sha256:ad2a96d2da2cc6bc2c7f5fdf76f033d12d5b5acfbee43136865bf5e94576b63c"],"state_sha256":"658831a60eca3fd83a24d511b74be2ae3b58cc35d1b726830ab49ea36fc1f42f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EmyZ0ff0jdZq4RHiPEmd+C9SECdTNNk9NE15gmTOQT4B8eCD0eIA8ajLs1G+6GXjnQqx9zBPkUlLmm8210+sBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-25T23:07:51.591850Z","bundle_sha256":"e666b603ced9ebd5ccbea1afa65a9f45c71eadaccb96d72fdac2886038723079"}}