{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:FBTVRN5LDWFN5LQG3CQ6CUS64C","short_pith_number":"pith:FBTVRN5L","canonical_record":{"source":{"id":"2112.05067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-09T17:49:13Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0e083866d9dbd0dbb3a98658e74afcef8905ecbdf42720f617d4df5f920aeacd","abstract_canon_sha256":"1b43b5a62b1b5278fecef75d19ceaf2ec3a4e3febcbfb5ef72e691c9a39d4407"},"schema_version":"1.0"},"canonical_sha256":"286758b7ab1d8adeae06d8a1e1525ee09962b2fd3795944f83ad753684a7411b","source":{"kind":"arxiv","id":"2112.05067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.05067","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"arxiv_version","alias_value":"2112.05067v1","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.05067","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_12","alias_value":"FBTVRN5LDWFN","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_16","alias_value":"FBTVRN5LDWFN5LQG","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_8","alias_value":"FBTVRN5L","created_at":"2026-07-05T03:42:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:FBTVRN5LDWFN5LQG3CQ6CUS64C","target":"record","payload":{"canonical_record":{"source":{"id":"2112.05067","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-09T17:49:13Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"0e083866d9dbd0dbb3a98658e74afcef8905ecbdf42720f617d4df5f920aeacd","abstract_canon_sha256":"1b43b5a62b1b5278fecef75d19ceaf2ec3a4e3febcbfb5ef72e691c9a39d4407"},"schema_version":"1.0"},"canonical_sha256":"286758b7ab1d8adeae06d8a1e1525ee09962b2fd3795944f83ad753684a7411b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:42:56.826762Z","signature_b64":"GOgvfCtxehVlVHADwRmfRtObssHUyelp16wT/GWeGUMFlNkFFlj6L2+tJPZmTdwo8FKjjhYxL+Y4HON950QoBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"286758b7ab1d8adeae06d8a1e1525ee09962b2fd3795944f83ad753684a7411b","last_reissued_at":"2026-07-05T03:42:56.826342Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:42:56.826342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.05067","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":"2026-07-05T03:42:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aF8NGORRUt+q+XcQ1b9LGUgYCpiwtlhuto634Qwn/Ra728ot2uugC3KSSapzwyBYKmYRHv95JwWXz2+XGnSPBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:47:29.496219Z"},"content_sha256":"9ba79c816ac0491551685ab2d692b0af45fed40a4c6f087d8ac8173cc2785465","schema_version":"1.0","event_id":"sha256:9ba79c816ac0491551685ab2d692b0af45fed40a4c6f087d8ac8173cc2785465"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:FBTVRN5LDWFN5LQG3CQ6CUS64C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MOMO IV: The complete Swift X-ray and UV/optical light curve and characteristic variability of the blazar OJ 287 during the last two decades","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"A. Gonzalez, A.R. Hollett, D. Grupe, L.C. Gallo, M.L. Parker, S. Ciprini, S. Komossa, S. Yao","submitted_at":"2021-12-09T17:49:13Z","abstract_excerpt":"We are carrying out a dense monitoring of the blazar OJ 287 with Swift since late 2015 as part of our project MOMO (Multiwavelength Observations and Modeling of OJ 287). This is the densest existing monitoring of OJ 287 involving X-ray and UV data. In this latest publication of a sequence, we characterize the multiwavelength variability of OJ 287 based on >4000 Swift single-wave-band data sets including archival data since 2005. A structure function analysis reveals a characteristic timescale of ~5 days in the optical-UV at epochs of low-level activity, and larger during outbursts. The discret"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.05067","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/2112.05067/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":"2026-07-05T03:42:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RH7bBEST9atPMyqyhMJ/huvf3FR9uhqONuRW6fDFqWvLIl75nildgfezKSkMyH7deU3TkgJSTmBbF1jp0Vv8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:47:29.496624Z"},"content_sha256":"8fe52e4d33847579cb3e9b14f80f176692fadb873d917ba7b0057b50f16b176f","schema_version":"1.0","event_id":"sha256:8fe52e4d33847579cb3e9b14f80f176692fadb873d917ba7b0057b50f16b176f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/bundle.json","state_url":"https://pith.science/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/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":"2026-07-05T15:47:29Z","links":{"resolver":"https://pith.science/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C","bundle":"https://pith.science/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/bundle.json","state":"https://pith.science/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FBTVRN5LDWFN5LQG3CQ6CUS64C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:FBTVRN5LDWFN5LQG3CQ6CUS64C","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":"1b43b5a62b1b5278fecef75d19ceaf2ec3a4e3febcbfb5ef72e691c9a39d4407","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-09T17:49:13Z","title_canon_sha256":"0e083866d9dbd0dbb3a98658e74afcef8905ecbdf42720f617d4df5f920aeacd"},"schema_version":"1.0","source":{"id":"2112.05067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.05067","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"arxiv_version","alias_value":"2112.05067v1","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.05067","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_12","alias_value":"FBTVRN5LDWFN","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_16","alias_value":"FBTVRN5LDWFN5LQG","created_at":"2026-07-05T03:42:56Z"},{"alias_kind":"pith_short_8","alias_value":"FBTVRN5L","created_at":"2026-07-05T03:42:56Z"}],"graph_snapshots":[{"event_id":"sha256:8fe52e4d33847579cb3e9b14f80f176692fadb873d917ba7b0057b50f16b176f","target":"graph","created_at":"2026-07-05T03:42:56Z","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/2112.05067/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We are carrying out a dense monitoring of the blazar OJ 287 with Swift since late 2015 as part of our project MOMO (Multiwavelength Observations and Modeling of OJ 287). This is the densest existing monitoring of OJ 287 involving X-ray and UV data. In this latest publication of a sequence, we characterize the multiwavelength variability of OJ 287 based on >4000 Swift single-wave-band data sets including archival data since 2005. A structure function analysis reveals a characteristic timescale of ~5 days in the optical-UV at epochs of low-level activity, and larger during outbursts. The discret","authors_text":"A. Gonzalez, A.R. Hollett, D. Grupe, L.C. Gallo, M.L. Parker, S. Ciprini, S. Komossa, S. Yao","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-09T17:49:13Z","title":"MOMO IV: The complete Swift X-ray and UV/optical light curve and characteristic variability of the blazar OJ 287 during the last two decades"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.05067","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":"sha256:9ba79c816ac0491551685ab2d692b0af45fed40a4c6f087d8ac8173cc2785465","target":"record","created_at":"2026-07-05T03:42:56Z","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":"1b43b5a62b1b5278fecef75d19ceaf2ec3a4e3febcbfb5ef72e691c9a39d4407","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-12-09T17:49:13Z","title_canon_sha256":"0e083866d9dbd0dbb3a98658e74afcef8905ecbdf42720f617d4df5f920aeacd"},"schema_version":"1.0","source":{"id":"2112.05067","kind":"arxiv","version":1}},"canonical_sha256":"286758b7ab1d8adeae06d8a1e1525ee09962b2fd3795944f83ad753684a7411b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"286758b7ab1d8adeae06d8a1e1525ee09962b2fd3795944f83ad753684a7411b","first_computed_at":"2026-07-05T03:42:56.826342Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:42:56.826342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GOgvfCtxehVlVHADwRmfRtObssHUyelp16wT/GWeGUMFlNkFFlj6L2+tJPZmTdwo8FKjjhYxL+Y4HON950QoBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:42:56.826762Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.05067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ba79c816ac0491551685ab2d692b0af45fed40a4c6f087d8ac8173cc2785465","sha256:8fe52e4d33847579cb3e9b14f80f176692fadb873d917ba7b0057b50f16b176f"],"state_sha256":"592b75264257f72c40e255cd3905fb84ef17251c6871fed29add52936bfe8407"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0SCHYJRtJduDiC1HAvhTnOBc/WlTTrM10K3p1sz42lPIB/VH3I1HIU9Ku0XV1vZM5ep4z3GCciWeANR6yNnyBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T15:47:29.498987Z","bundle_sha256":"62927055b416a4de3885257c2a5d72f285ce68eb349798328bfd63fada26a6bf"}}