{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:P6ZXR6XIIQCOWF3KIWGDBP34NU","short_pith_number":"pith:P6ZXR6XI","canonical_record":{"source":{"id":"2207.00621","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-07-01T18:46:14Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"56c110187dd73d0f85e3f59efd50040500fa02c7ddbdd295af5b37731155c3b4","abstract_canon_sha256":"664612c8bc3715f7178943d0e6a8ddd24c7c5a0763a461b62074260950fbe3e5"},"schema_version":"1.0"},"canonical_sha256":"7fb378fae84404eb176a458c30bf7c6d082a29965938a3b2367fb94e05137c0f","source":{"kind":"arxiv","id":"2207.00621","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.00621","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"arxiv_version","alias_value":"2207.00621v2","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.00621","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_12","alias_value":"P6ZXR6XIIQCO","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_16","alias_value":"P6ZXR6XIIQCOWF3K","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_8","alias_value":"P6ZXR6XI","created_at":"2026-07-05T05:31:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:P6ZXR6XIIQCOWF3KIWGDBP34NU","target":"record","payload":{"canonical_record":{"source":{"id":"2207.00621","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-07-01T18:46:14Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"56c110187dd73d0f85e3f59efd50040500fa02c7ddbdd295af5b37731155c3b4","abstract_canon_sha256":"664612c8bc3715f7178943d0e6a8ddd24c7c5a0763a461b62074260950fbe3e5"},"schema_version":"1.0"},"canonical_sha256":"7fb378fae84404eb176a458c30bf7c6d082a29965938a3b2367fb94e05137c0f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:31:51.272993Z","signature_b64":"L/KHaDOnUEJbsCYKW1fAcQ+vtbxdMHI48o2eNiHDlkBsB3pHxK+z+QAzPJNAvhrNV/2FPCDatA3PNABqpXaHCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fb378fae84404eb176a458c30bf7c6d082a29965938a3b2367fb94e05137c0f","last_reissued_at":"2026-07-05T05:31:51.272594Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:31:51.272594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.00621","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":"2026-07-05T05:31:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bydsoB/nTSZM5XmR8RkezzTdriZSsCiDVeJ9+I8PMwrW7ZA4KlirgbvcXnN1sypfLREY5GemrgcMGUzlGmR2BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:14:09.871093Z"},"content_sha256":"645b73963bb67b29fef0e42a547cfd273b1bc1c89fb968dcfb983fd4fb16e902","schema_version":"1.0","event_id":"sha256:645b73963bb67b29fef0e42a547cfd273b1bc1c89fb968dcfb983fd4fb16e902"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:P6ZXR6XIIQCOWF3KIWGDBP34NU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving LIGO calibration accuracy by using time-dependent filters to compensate for temporal variations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.IM","authors_text":"Aaron D. Viets, Leslie Wade, Madeline Stover, Madeline Wade, Theresa Chmiel","submitted_at":"2022-07-01T18:46:14Z","abstract_excerpt":"The response of the Advanced LIGO interferometers is known to vary with time [arXiv:1608.05134]. Accurate calibration of the interferometers must therefore track and compensate for temporal variations in calibration model parameters. These variations were tracked during the first three Advanced LIGO observing runs, and compensation for some of them has been implemented in the calibration procedure. During the second observing run, multiplicative corrections to the interferometer response were applied while producing calibrated strain data both in real-time and in high-latency. In a high-latenc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.00621","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/2207.00621/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":"2026-07-05T05:31:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qXtNsbAZ1VmojnEJeKwTyAru78PzqBvSbA9wEJ0EaXPj0uT2rVpDwciYj/4eDCiBs2aN8oX9B9s7qML70qxZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:14:09.871718Z"},"content_sha256":"828cd42a9f2f61c68001665919a61c2215e5a4ba8c88f7575a5869f322830ce8","schema_version":"1.0","event_id":"sha256:828cd42a9f2f61c68001665919a61c2215e5a4ba8c88f7575a5869f322830ce8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/bundle.json","state_url":"https://pith.science/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/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":"2026-07-07T05:14:09Z","links":{"resolver":"https://pith.science/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU","bundle":"https://pith.science/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/bundle.json","state":"https://pith.science/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6ZXR6XIIQCOWF3KIWGDBP34NU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:P6ZXR6XIIQCOWF3KIWGDBP34NU","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":"664612c8bc3715f7178943d0e6a8ddd24c7c5a0763a461b62074260950fbe3e5","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-07-01T18:46:14Z","title_canon_sha256":"56c110187dd73d0f85e3f59efd50040500fa02c7ddbdd295af5b37731155c3b4"},"schema_version":"1.0","source":{"id":"2207.00621","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.00621","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"arxiv_version","alias_value":"2207.00621v2","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.00621","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_12","alias_value":"P6ZXR6XIIQCO","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_16","alias_value":"P6ZXR6XIIQCOWF3K","created_at":"2026-07-05T05:31:51Z"},{"alias_kind":"pith_short_8","alias_value":"P6ZXR6XI","created_at":"2026-07-05T05:31:51Z"}],"graph_snapshots":[{"event_id":"sha256:828cd42a9f2f61c68001665919a61c2215e5a4ba8c88f7575a5869f322830ce8","target":"graph","created_at":"2026-07-05T05:31:51Z","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/2207.00621/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The response of the Advanced LIGO interferometers is known to vary with time [arXiv:1608.05134]. Accurate calibration of the interferometers must therefore track and compensate for temporal variations in calibration model parameters. These variations were tracked during the first three Advanced LIGO observing runs, and compensation for some of them has been implemented in the calibration procedure. During the second observing run, multiplicative corrections to the interferometer response were applied while producing calibrated strain data both in real-time and in high-latency. In a high-latenc","authors_text":"Aaron D. Viets, Leslie Wade, Madeline Stover, Madeline Wade, Theresa Chmiel","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-07-01T18:46:14Z","title":"Improving LIGO calibration accuracy by using time-dependent filters to compensate for temporal variations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.00621","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":"sha256:645b73963bb67b29fef0e42a547cfd273b1bc1c89fb968dcfb983fd4fb16e902","target":"record","created_at":"2026-07-05T05:31:51Z","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":"664612c8bc3715f7178943d0e6a8ddd24c7c5a0763a461b62074260950fbe3e5","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2022-07-01T18:46:14Z","title_canon_sha256":"56c110187dd73d0f85e3f59efd50040500fa02c7ddbdd295af5b37731155c3b4"},"schema_version":"1.0","source":{"id":"2207.00621","kind":"arxiv","version":2}},"canonical_sha256":"7fb378fae84404eb176a458c30bf7c6d082a29965938a3b2367fb94e05137c0f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fb378fae84404eb176a458c30bf7c6d082a29965938a3b2367fb94e05137c0f","first_computed_at":"2026-07-05T05:31:51.272594Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:31:51.272594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L/KHaDOnUEJbsCYKW1fAcQ+vtbxdMHI48o2eNiHDlkBsB3pHxK+z+QAzPJNAvhrNV/2FPCDatA3PNABqpXaHCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:31:51.272993Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.00621","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:645b73963bb67b29fef0e42a547cfd273b1bc1c89fb968dcfb983fd4fb16e902","sha256:828cd42a9f2f61c68001665919a61c2215e5a4ba8c88f7575a5869f322830ce8"],"state_sha256":"56271b1ae276821916fa6cf16cbb8409bfd908bbe11eda03af10dd29360e9e2b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"14mowJo6e2n6PuPwnnKQ39rd2+puzpeBIUE+mH5MAhbUIHG7goeDz122kzUgrRG5BuUm6KimKo5dHK/taI4IDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:14:09.874446Z","bundle_sha256":"ab3b2e9e25fc9d88f40dfba6a2c535b4e05efca1760266c0a25e14581865c248"}}