{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QYN7PLI35NSNX56ADLAGUCGEHY","short_pith_number":"pith:QYN7PLI3","canonical_record":{"source":{"id":"1710.09973","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-27T03:18:17Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"408b542c4c3ed7237c4d5eeb75b1b0da6cbb82034d2bf3f555e80c237617d360","abstract_canon_sha256":"a421d9bfda7691b68ca94acce0819b081bf87d45f43078250abf8cf5e9dbdfb3"},"schema_version":"1.0"},"canonical_sha256":"861bf7ad1beb64dbf7c01ac06a08c43e27e078587c62b51f7d1de19951d0697b","source":{"kind":"arxiv","id":"1710.09973","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09973","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09973v2","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09973","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"QYN7PLI35NSN","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QYN7PLI35NSNX56A","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QYN7PLI3","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QYN7PLI35NSNX56ADLAGUCGEHY","target":"record","payload":{"canonical_record":{"source":{"id":"1710.09973","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-27T03:18:17Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"408b542c4c3ed7237c4d5eeb75b1b0da6cbb82034d2bf3f555e80c237617d360","abstract_canon_sha256":"a421d9bfda7691b68ca94acce0819b081bf87d45f43078250abf8cf5e9dbdfb3"},"schema_version":"1.0"},"canonical_sha256":"861bf7ad1beb64dbf7c01ac06a08c43e27e078587c62b51f7d1de19951d0697b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:04.527763Z","signature_b64":"cRF0WDYxZSaFM8OJYcaWvWXkBItstWyjP0iZSiVfCqC0NPWsgFT3EZ03MUZdT7q0wfmNNysyXEuEOENBpkRAAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"861bf7ad1beb64dbf7c01ac06a08c43e27e078587c62b51f7d1de19951d0697b","last_reissued_at":"2026-05-18T00:21:04.527112Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:04.527112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.09973","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":"2026-05-18T00:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qztl9mRiS0gXQnqFbt3wOKz15v0BJaRSXBMuUZDc0x3IYRp9MdOUE7QtY36MTyAx08aq+lQIEkXWlg06fxymAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T12:48:42.767754Z"},"content_sha256":"88b830f2acd4c8caf8767e7ac8eedb8a25fe45b6853bbae3daae25e2b2024114","schema_version":"1.0","event_id":"sha256:88b830f2acd4c8caf8767e7ac8eedb8a25fe45b6853bbae3daae25e2b2024114"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QYN7PLI35NSNX56ADLAGUCGEHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconstructing the calibrated strain signal in the Advanced LIGO detectors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.IM","authors_text":"A. D. Viets, A. J. Weinstein, A. L. Urban, C. Cahillane, D. Tuyenbayev, Duncan A. Brown, E. Goetz, G. Mendell, J. Betzwieser, J. Burguet-Castell, J. S. Kissel, K. Izumi, M. Wade, R. L. Savage, S. Kandhasamy, S. Karki, X. Siemens","submitted_at":"2017-10-27T03:18:17Z","abstract_excerpt":"Advanced LIGO's raw detector output needs to be calibrated to compute dimensionless strain h(t). Calibrated strain data is produced in the time domain using both a low-latency, online procedure and a high-latency, offline procedure. The low-latency h(t) data stream is produced in two stages, the first of which is performed on the same computers that operate the detector's feedback control system. This stage, referred to as the front-end calibration, uses infinite impulse response (IIR) filtering and performs all operations at a 16384 Hz digital sampling rate. Due to several limitations, this p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09973","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":"2026-05-18T00:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4HbmLbFry87USJ8MpE/FsjO3HXQJiyJjVev235rrhLl0qH13I8PlleGYqAMVKfBDWTJTvYE6wpdIsKMKbGmBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T12:48:42.768488Z"},"content_sha256":"4a31478bd5f6feb12f929022620dc3b25bb4f8f6fcb7aa6bf919768b8b56d6fe","schema_version":"1.0","event_id":"sha256:4a31478bd5f6feb12f929022620dc3b25bb4f8f6fcb7aa6bf919768b8b56d6fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QYN7PLI35NSNX56ADLAGUCGEHY/bundle.json","state_url":"https://pith.science/pith/QYN7PLI35NSNX56ADLAGUCGEHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QYN7PLI35NSNX56ADLAGUCGEHY/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":"2026-05-23T12:48:42Z","links":{"resolver":"https://pith.science/pith/QYN7PLI35NSNX56ADLAGUCGEHY","bundle":"https://pith.science/pith/QYN7PLI35NSNX56ADLAGUCGEHY/bundle.json","state":"https://pith.science/pith/QYN7PLI35NSNX56ADLAGUCGEHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QYN7PLI35NSNX56ADLAGUCGEHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QYN7PLI35NSNX56ADLAGUCGEHY","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":"a421d9bfda7691b68ca94acce0819b081bf87d45f43078250abf8cf5e9dbdfb3","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-27T03:18:17Z","title_canon_sha256":"408b542c4c3ed7237c4d5eeb75b1b0da6cbb82034d2bf3f555e80c237617d360"},"schema_version":"1.0","source":{"id":"1710.09973","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.09973","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"1710.09973v2","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.09973","created_at":"2026-05-18T00:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"QYN7PLI35NSN","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QYN7PLI35NSNX56A","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QYN7PLI3","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:4a31478bd5f6feb12f929022620dc3b25bb4f8f6fcb7aa6bf919768b8b56d6fe","target":"graph","created_at":"2026-05-18T00:21:04Z","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":"Advanced LIGO's raw detector output needs to be calibrated to compute dimensionless strain h(t). Calibrated strain data is produced in the time domain using both a low-latency, online procedure and a high-latency, offline procedure. The low-latency h(t) data stream is produced in two stages, the first of which is performed on the same computers that operate the detector's feedback control system. This stage, referred to as the front-end calibration, uses infinite impulse response (IIR) filtering and performs all operations at a 16384 Hz digital sampling rate. Due to several limitations, this p","authors_text":"A. D. Viets, A. J. Weinstein, A. L. Urban, C. Cahillane, D. Tuyenbayev, Duncan A. Brown, E. Goetz, G. Mendell, J. Betzwieser, J. Burguet-Castell, J. S. Kissel, K. Izumi, M. Wade, R. L. Savage, S. Kandhasamy, S. Karki, X. Siemens","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-27T03:18:17Z","title":"Reconstructing the calibrated strain signal in the Advanced LIGO detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.09973","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":"sha256:88b830f2acd4c8caf8767e7ac8eedb8a25fe45b6853bbae3daae25e2b2024114","target":"record","created_at":"2026-05-18T00:21:04Z","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":"a421d9bfda7691b68ca94acce0819b081bf87d45f43078250abf8cf5e9dbdfb3","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-27T03:18:17Z","title_canon_sha256":"408b542c4c3ed7237c4d5eeb75b1b0da6cbb82034d2bf3f555e80c237617d360"},"schema_version":"1.0","source":{"id":"1710.09973","kind":"arxiv","version":2}},"canonical_sha256":"861bf7ad1beb64dbf7c01ac06a08c43e27e078587c62b51f7d1de19951d0697b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"861bf7ad1beb64dbf7c01ac06a08c43e27e078587c62b51f7d1de19951d0697b","first_computed_at":"2026-05-18T00:21:04.527112Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:04.527112Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cRF0WDYxZSaFM8OJYcaWvWXkBItstWyjP0iZSiVfCqC0NPWsgFT3EZ03MUZdT7q0wfmNNysyXEuEOENBpkRAAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:04.527763Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.09973","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88b830f2acd4c8caf8767e7ac8eedb8a25fe45b6853bbae3daae25e2b2024114","sha256:4a31478bd5f6feb12f929022620dc3b25bb4f8f6fcb7aa6bf919768b8b56d6fe"],"state_sha256":"224bb36c9751367e94c75714691f62bde629b139f9f4de148d3b7b04c7395de1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yz9abR3N9qRkWDnbxh/1QF+r5KtLpQCEdmVDUt4QQ1asS2mY4aOa1/ecJLzlaoIQBSKdtdASl8GqJFgWUpfnDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T12:48:42.773081Z","bundle_sha256":"e75d08129c4425c5114df9c9ad630dfe9419175c6d5aaafa7b9c6912cc8af9bf"}}