{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:354TFOTJZOYKLNQFWFVN3Y5KOX","short_pith_number":"pith:354TFOTJ","canonical_record":{"source":{"id":"2407.09445","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-12T17:29:48Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5098e3c45612f745654f975a07a3baaf3c63717bfa53e4ec29c7576418b3c03a","abstract_canon_sha256":"1d5d7c8be402ae5491036eee23616d102adc306177e4308564e21b63317811bd"},"schema_version":"1.0"},"canonical_sha256":"df7932ba69cbb0a5b605b16adde3aa75e5def54b0c666144c176da15d66b36cc","source":{"kind":"arxiv","id":"2407.09445","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.09445","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"arxiv_version","alias_value":"2407.09445v1","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.09445","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_12","alias_value":"354TFOTJZOYK","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_16","alias_value":"354TFOTJZOYKLNQF","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_8","alias_value":"354TFOTJ","created_at":"2026-07-05T08:43:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:354TFOTJZOYKLNQFWFVN3Y5KOX","target":"record","payload":{"canonical_record":{"source":{"id":"2407.09445","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-12T17:29:48Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5098e3c45612f745654f975a07a3baaf3c63717bfa53e4ec29c7576418b3c03a","abstract_canon_sha256":"1d5d7c8be402ae5491036eee23616d102adc306177e4308564e21b63317811bd"},"schema_version":"1.0"},"canonical_sha256":"df7932ba69cbb0a5b605b16adde3aa75e5def54b0c666144c176da15d66b36cc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:43:19.273872Z","signature_b64":"/uyvednzcG1n/EGaTd6PaoOUBnUE1mfxjqsUOEIAhePFKEX16bWZgNBUMTX/ZPnqsvghnuQ2EAsMj9n/pP5tCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"df7932ba69cbb0a5b605b16adde3aa75e5def54b0c666144c176da15d66b36cc","last_reissued_at":"2026-07-05T08:43:19.273396Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:43:19.273396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.09445","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":"2026-07-05T08:43:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qAq0lSEoNB1KQED+tysky6pkDbRZwE+3b0hGfCRYLAcADeLcyFUmca17D5myEf8HCJkA98eP0yUGlCyGjTuZCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:04:10.054228Z"},"content_sha256":"66a7dae68edb5e10435547017e35630117fdfa74851943bee11447734e32bece","schema_version":"1.0","event_id":"sha256:66a7dae68edb5e10435547017e35630117fdfa74851943bee11447734e32bece"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:354TFOTJZOYKLNQFWFVN3Y5KOX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Intensive broadband reverberation mapping of Fairall 9 with 1.8 years of daily Swift monitoring","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"B. M. Peterson, I. McHardy, J. Gelbord, K. Horne, M. Goad, M. Vestergaard, R. Edelson, S. Vaughan","submitted_at":"2024-07-12T17:29:48Z","abstract_excerpt":"We present 1.8 years of near-daily Swift monitoring of the bright, strongly variable Type 1 AGN Fairall 9. Totaling 575 successful visits, this is the largest such campaign reported to date. Variations within the UV/optical are well-correlated, with longer wavelengths lagging shorter wavelengths in the direction predicted by thin disk/lamp-post models. The correlations are improved by detrending; subtracting a second-order polynomial fit to the UV/optical light curves to remove long-term trends that are not of interest to this study. Extensive testing indicates detrending with higher-order pol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.09445","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/2407.09445/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":"2026-07-05T08:43:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OhcP/racYrA7pVTGpNJJ4VdIMJO9R9+g0Tkl6r+QVYMY3gzAmXDgGu0sHIqrenY3yKIvKKiU+uXsI9fz3En+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:04:10.054819Z"},"content_sha256":"55160b6265db7c8bb206bfdc246e9b4dddbbdd6dfccf8c54bc2f50a4e0ffa7af","schema_version":"1.0","event_id":"sha256:55160b6265db7c8bb206bfdc246e9b4dddbbdd6dfccf8c54bc2f50a4e0ffa7af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/bundle.json","state_url":"https://pith.science/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/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":"2026-08-14T02:04:10Z","links":{"resolver":"https://pith.science/pith/354TFOTJZOYKLNQFWFVN3Y5KOX","bundle":"https://pith.science/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/bundle.json","state":"https://pith.science/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/354TFOTJZOYKLNQFWFVN3Y5KOX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:354TFOTJZOYKLNQFWFVN3Y5KOX","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":"1d5d7c8be402ae5491036eee23616d102adc306177e4308564e21b63317811bd","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-12T17:29:48Z","title_canon_sha256":"5098e3c45612f745654f975a07a3baaf3c63717bfa53e4ec29c7576418b3c03a"},"schema_version":"1.0","source":{"id":"2407.09445","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.09445","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"arxiv_version","alias_value":"2407.09445v1","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.09445","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_12","alias_value":"354TFOTJZOYK","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_16","alias_value":"354TFOTJZOYKLNQF","created_at":"2026-07-05T08:43:19Z"},{"alias_kind":"pith_short_8","alias_value":"354TFOTJ","created_at":"2026-07-05T08:43:19Z"}],"graph_snapshots":[{"event_id":"sha256:55160b6265db7c8bb206bfdc246e9b4dddbbdd6dfccf8c54bc2f50a4e0ffa7af","target":"graph","created_at":"2026-07-05T08:43:19Z","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/2407.09445/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present 1.8 years of near-daily Swift monitoring of the bright, strongly variable Type 1 AGN Fairall 9. Totaling 575 successful visits, this is the largest such campaign reported to date. Variations within the UV/optical are well-correlated, with longer wavelengths lagging shorter wavelengths in the direction predicted by thin disk/lamp-post models. The correlations are improved by detrending; subtracting a second-order polynomial fit to the UV/optical light curves to remove long-term trends that are not of interest to this study. Extensive testing indicates detrending with higher-order pol","authors_text":"B. M. Peterson, I. McHardy, J. Gelbord, K. Horne, M. Goad, M. Vestergaard, R. Edelson, S. Vaughan","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-12T17:29:48Z","title":"Intensive broadband reverberation mapping of Fairall 9 with 1.8 years of daily Swift monitoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.09445","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":"sha256:66a7dae68edb5e10435547017e35630117fdfa74851943bee11447734e32bece","target":"record","created_at":"2026-07-05T08:43:19Z","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":"1d5d7c8be402ae5491036eee23616d102adc306177e4308564e21b63317811bd","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-07-12T17:29:48Z","title_canon_sha256":"5098e3c45612f745654f975a07a3baaf3c63717bfa53e4ec29c7576418b3c03a"},"schema_version":"1.0","source":{"id":"2407.09445","kind":"arxiv","version":1}},"canonical_sha256":"df7932ba69cbb0a5b605b16adde3aa75e5def54b0c666144c176da15d66b36cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df7932ba69cbb0a5b605b16adde3aa75e5def54b0c666144c176da15d66b36cc","first_computed_at":"2026-07-05T08:43:19.273396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:43:19.273396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/uyvednzcG1n/EGaTd6PaoOUBnUE1mfxjqsUOEIAhePFKEX16bWZgNBUMTX/ZPnqsvghnuQ2EAsMj9n/pP5tCg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:43:19.273872Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.09445","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66a7dae68edb5e10435547017e35630117fdfa74851943bee11447734e32bece","sha256:55160b6265db7c8bb206bfdc246e9b4dddbbdd6dfccf8c54bc2f50a4e0ffa7af"],"state_sha256":"66f5c0a0d92a8ad543259ddace06293ef4e8d4578afb473d835722e3032b8c3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NuMgvgjWV4cKcL7eV7bE3+qb2fqHkBb4sVNjoK71Mn50I3RCyFKbtuc9g8Bq6mw+z/OcuIzBzhDwWrNIApceBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T02:04:10.058380Z","bundle_sha256":"d03bb95eeb607bcb11e0aff54a1f77e115ecab3a77c6d9b7b10886bb63bc50ae"}}