{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:J5XWFM354KDKVUR7XHH4A5IDX6","short_pith_number":"pith:J5XWFM35","canonical_record":{"source":{"id":"2110.11731","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-10-22T12:04:41Z","cross_cats_sorted":["astro-ph.IM","gr-qc"],"title_canon_sha256":"2cb80c9e46338e89a27a26b845fe7f7b2236718bcdf741dd62261feb0bb1a4da","abstract_canon_sha256":"db07f35c62e917f1d0a88b2ae67ff07f29a9898bbed1ef4df4f694e2c12e3cd8"},"schema_version":"1.0"},"canonical_sha256":"4f6f62b37de286aad23fb9cfc07503bf98a23526c9d4d38c5af708c4c4b9aef3","source":{"kind":"arxiv","id":"2110.11731","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.11731","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"arxiv_version","alias_value":"2110.11731v2","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.11731","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_12","alias_value":"J5XWFM354KDK","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_16","alias_value":"J5XWFM354KDKVUR7","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_8","alias_value":"J5XWFM35","created_at":"2026-07-05T04:53:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:J5XWFM354KDKVUR7XHH4A5IDX6","target":"record","payload":{"canonical_record":{"source":{"id":"2110.11731","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-10-22T12:04:41Z","cross_cats_sorted":["astro-ph.IM","gr-qc"],"title_canon_sha256":"2cb80c9e46338e89a27a26b845fe7f7b2236718bcdf741dd62261feb0bb1a4da","abstract_canon_sha256":"db07f35c62e917f1d0a88b2ae67ff07f29a9898bbed1ef4df4f694e2c12e3cd8"},"schema_version":"1.0"},"canonical_sha256":"4f6f62b37de286aad23fb9cfc07503bf98a23526c9d4d38c5af708c4c4b9aef3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:53:39.874718Z","signature_b64":"9IzuLHwTkxslFrcq4Ta3QahaQxXiGav/A52CGp2aGtrCjpvAnnOOUhpxXokjYfuHh1gno9CqgENJuN0UZh1UDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f6f62b37de286aad23fb9cfc07503bf98a23526c9d4d38c5af708c4c4b9aef3","last_reissued_at":"2026-07-05T04:53:39.874245Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:53:39.874245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2110.11731","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":"2026-07-05T04:53:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zN63Cyiab4mGECoXg+oQIWOK6AhMubzvbzMoTv2ClVwW7BALArTyE8FMWmNYOrMvH/aKIkqGhV2YrosQpGAtAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:27:55.564603Z"},"content_sha256":"9f3898ce78f4e734a4f97ca9e3b29e0dac180bee3b5150cd68b892ccf49abd22","schema_version":"1.0","event_id":"sha256:9f3898ce78f4e734a4f97ca9e3b29e0dac180bee3b5150cd68b892ccf49abd22"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:J5XWFM354KDKVUR7XHH4A5IDX6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Does non-stationary noise in LIGO and Virgo affect the estimation of $H_0$?","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM","gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Andrew R. Williamson, Gregory Ashton, Laura K. Nuttall, Simone Mozzon","submitted_at":"2021-10-22T12:04:41Z","abstract_excerpt":"Gravitational-wave observations of binary neutron star mergers and their electromagnetic counterparts provide an independent measurement of the Hubble constant, $H_0$, through the standard-sirens approach. Current methods of determining $H_0$, such as measurements from the early universe and the local distance ladder, are in tension with one another. If gravitational waves are to break this tension a thorough understanding of systematic uncertainty for gravitational-wave observations is required. To accurately estimate the properties of gravitational-wave signals measured by LIGO and Virgo, we"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.11731","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/2110.11731/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":"2026-07-05T04:53:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f347BLKAQVRVGKAJ1Hax6+NQXjF2Wu2FNA1guFtXxEZqt2H7maFPrXfpPpNhrhlnU1vRA89uKnRiDSpw/YSPDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:27:55.565506Z"},"content_sha256":"7d80505175fe376b9c965b1f9f7d0cfd62c7d20efc639f592794be2c8276fd96","schema_version":"1.0","event_id":"sha256:7d80505175fe376b9c965b1f9f7d0cfd62c7d20efc639f592794be2c8276fd96"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J5XWFM354KDKVUR7XHH4A5IDX6/bundle.json","state_url":"https://pith.science/pith/J5XWFM354KDKVUR7XHH4A5IDX6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J5XWFM354KDKVUR7XHH4A5IDX6/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":"2026-08-18T18:27:55Z","links":{"resolver":"https://pith.science/pith/J5XWFM354KDKVUR7XHH4A5IDX6","bundle":"https://pith.science/pith/J5XWFM354KDKVUR7XHH4A5IDX6/bundle.json","state":"https://pith.science/pith/J5XWFM354KDKVUR7XHH4A5IDX6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J5XWFM354KDKVUR7XHH4A5IDX6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:J5XWFM354KDKVUR7XHH4A5IDX6","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":"db07f35c62e917f1d0a88b2ae67ff07f29a9898bbed1ef4df4f694e2c12e3cd8","cross_cats_sorted":["astro-ph.IM","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-10-22T12:04:41Z","title_canon_sha256":"2cb80c9e46338e89a27a26b845fe7f7b2236718bcdf741dd62261feb0bb1a4da"},"schema_version":"1.0","source":{"id":"2110.11731","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.11731","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"arxiv_version","alias_value":"2110.11731v2","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.11731","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_12","alias_value":"J5XWFM354KDK","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_16","alias_value":"J5XWFM354KDKVUR7","created_at":"2026-07-05T04:53:39Z"},{"alias_kind":"pith_short_8","alias_value":"J5XWFM35","created_at":"2026-07-05T04:53:39Z"}],"graph_snapshots":[{"event_id":"sha256:7d80505175fe376b9c965b1f9f7d0cfd62c7d20efc639f592794be2c8276fd96","target":"graph","created_at":"2026-07-05T04:53:39Z","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/2110.11731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gravitational-wave observations of binary neutron star mergers and their electromagnetic counterparts provide an independent measurement of the Hubble constant, $H_0$, through the standard-sirens approach. Current methods of determining $H_0$, such as measurements from the early universe and the local distance ladder, are in tension with one another. If gravitational waves are to break this tension a thorough understanding of systematic uncertainty for gravitational-wave observations is required. To accurately estimate the properties of gravitational-wave signals measured by LIGO and Virgo, we","authors_text":"Andrew R. Williamson, Gregory Ashton, Laura K. Nuttall, Simone Mozzon","cross_cats":["astro-ph.IM","gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-10-22T12:04:41Z","title":"Does non-stationary noise in LIGO and Virgo affect the estimation of $H_0$?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.11731","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":"sha256:9f3898ce78f4e734a4f97ca9e3b29e0dac180bee3b5150cd68b892ccf49abd22","target":"record","created_at":"2026-07-05T04:53:39Z","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":"db07f35c62e917f1d0a88b2ae67ff07f29a9898bbed1ef4df4f694e2c12e3cd8","cross_cats_sorted":["astro-ph.IM","gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-10-22T12:04:41Z","title_canon_sha256":"2cb80c9e46338e89a27a26b845fe7f7b2236718bcdf741dd62261feb0bb1a4da"},"schema_version":"1.0","source":{"id":"2110.11731","kind":"arxiv","version":2}},"canonical_sha256":"4f6f62b37de286aad23fb9cfc07503bf98a23526c9d4d38c5af708c4c4b9aef3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f6f62b37de286aad23fb9cfc07503bf98a23526c9d4d38c5af708c4c4b9aef3","first_computed_at":"2026-07-05T04:53:39.874245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:53:39.874245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9IzuLHwTkxslFrcq4Ta3QahaQxXiGav/A52CGp2aGtrCjpvAnnOOUhpxXokjYfuHh1gno9CqgENJuN0UZh1UDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:53:39.874718Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.11731","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f3898ce78f4e734a4f97ca9e3b29e0dac180bee3b5150cd68b892ccf49abd22","sha256:7d80505175fe376b9c965b1f9f7d0cfd62c7d20efc639f592794be2c8276fd96"],"state_sha256":"b34b462effac12c62f954b4e5cb64431b5c8c14388d4a1818b9a54ea34f99b97"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qOLbTD/KsybOjHH47CqzUhZaUdiI9jYD0yC216VWcvRQnTkVwj0kUsucq2B95f0Eke0n06Lu6l76wuIouEp4Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T18:27:55.573144Z","bundle_sha256":"09d41a9784e1c647396e77265cabddf85204ddaae843932219e9c0d3966904fa"}}