{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:Z4MRWMCPBQAUGKGFEFTYLDTUXD","short_pith_number":"pith:Z4MRWMCP","canonical_record":{"source":{"id":"0812.4582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"b68e2f500ba92c51dc08db4e26e242b38bfa1330678004ec5766b2bcc5908a4a","abstract_canon_sha256":"80a3884754e5f5e32616cc83850a35b6b949423ad2489c1c2020ca349cb934ab"},"schema_version":"1.0"},"canonical_sha256":"cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866","source":{"kind":"arxiv","id":"0812.4582","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.4582","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"arxiv_version","alias_value":"0812.4582v1","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4582","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"pith_short_12","alias_value":"Z4MRWMCPBQAU","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"Z4MRWMCPBQAUGKGF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"Z4MRWMCP","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:Z4MRWMCPBQAUGKGFEFTYLDTUXD","target":"record","payload":{"canonical_record":{"source":{"id":"0812.4582","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:20:48Z","cross_cats_sorted":[],"title_canon_sha256":"b68e2f500ba92c51dc08db4e26e242b38bfa1330678004ec5766b2bcc5908a4a","abstract_canon_sha256":"80a3884754e5f5e32616cc83850a35b6b949423ad2489c1c2020ca349cb934ab"},"schema_version":"1.0"},"canonical_sha256":"cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:24.267629Z","signature_b64":"irGwvcvlS8Lm1IQ05Ug2viTptUhH3rEp9pxuazixdBENo6QOafwl/lX38o+JzKscNOF22c/ymgaREXB1H8QpAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866","last_reissued_at":"2026-05-18T04:29:24.267080Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:24.267080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0812.4582","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":"2026-05-18T04:29:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hz6hZ+ITy8O+s69nRmTSRwJrcqGrzcymyJYZjJLbURXuKvv4Vybpcl4A80vkzrnYXTrzbtdb+tD/wzOzwk4GBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:38:49.633149Z"},"content_sha256":"7f52e1e173fb1456e673c6d475fac4c90d5122b240338d43b767e3cd329ffd63","schema_version":"1.0","event_id":"sha256:7f52e1e173fb1456e673c6d475fac4c90d5122b240338d43b767e3cd329ffd63"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:Z4MRWMCPBQAUGKGFEFTYLDTUXD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correlated variability in the blazar 3C 454.3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Kaptur (Yale), C. Bailyn, C. M. Urry, E. W. Bonning, G. Fossati (Rice), J. Isler, L. Maraschi (INAF-Osservatorio di Brera), M. Buxton (Yale), P. Coppi, R. Scalzo","submitted_at":"2008-12-30T20:20:48Z","abstract_excerpt":"The blazar 3C 454.3 was revealed by the Fermi Gamma-ray Space Telescope to be in an exceptionally high flux state in July 2008. Accordingly, we performed a multi-wavelength monitoring campaign on this blazar using IR and optical observations from the SMARTS telescopes, optical, UV and X-ray data from the Swift satellite, and public-release gamma-ray data from Fermi. We find an excellent correlation between the IR, optical, UV and gamma-ray light curves, with a time lag of less than one day. The amplitude of the infrared variability is comparable to that in gamma-rays, and larger than at optica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4582","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":""},"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":"2026-05-18T04:29:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qQN4Ig6dQVAZQxxh2pjCbD3Pu9/6cOq2qljp9G7MUSO5bUL1yAVdsOXg8I7DDyeq9srJLfT5rCrnbzHFCUktAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T17:38:49.633946Z"},"content_sha256":"587a455fa0713dcafbf34a5fabfffcd250285c93ed467f16b32ebadcdda96ac5","schema_version":"1.0","event_id":"sha256:587a455fa0713dcafbf34a5fabfffcd250285c93ed467f16b32ebadcdda96ac5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/bundle.json","state_url":"https://pith.science/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/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":"2026-05-30T17:38:49Z","links":{"resolver":"https://pith.science/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD","bundle":"https://pith.science/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/bundle.json","state":"https://pith.science/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z4MRWMCPBQAUGKGFEFTYLDTUXD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:Z4MRWMCPBQAUGKGFEFTYLDTUXD","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":"80a3884754e5f5e32616cc83850a35b6b949423ad2489c1c2020ca349cb934ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:20:48Z","title_canon_sha256":"b68e2f500ba92c51dc08db4e26e242b38bfa1330678004ec5766b2bcc5908a4a"},"schema_version":"1.0","source":{"id":"0812.4582","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0812.4582","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"arxiv_version","alias_value":"0812.4582v1","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.4582","created_at":"2026-05-18T04:29:24Z"},{"alias_kind":"pith_short_12","alias_value":"Z4MRWMCPBQAU","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"Z4MRWMCPBQAUGKGF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"Z4MRWMCP","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:587a455fa0713dcafbf34a5fabfffcd250285c93ed467f16b32ebadcdda96ac5","target":"graph","created_at":"2026-05-18T04:29:24Z","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":"The blazar 3C 454.3 was revealed by the Fermi Gamma-ray Space Telescope to be in an exceptionally high flux state in July 2008. Accordingly, we performed a multi-wavelength monitoring campaign on this blazar using IR and optical observations from the SMARTS telescopes, optical, UV and X-ray data from the Swift satellite, and public-release gamma-ray data from Fermi. We find an excellent correlation between the IR, optical, UV and gamma-ray light curves, with a time lag of less than one day. The amplitude of the infrared variability is comparable to that in gamma-rays, and larger than at optica","authors_text":"A. Kaptur (Yale), C. Bailyn, C. M. Urry, E. W. Bonning, G. Fossati (Rice), J. Isler, L. Maraschi (INAF-Osservatorio di Brera), M. Buxton (Yale), P. Coppi, R. Scalzo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:20:48Z","title":"Correlated variability in the blazar 3C 454.3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.4582","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":"sha256:7f52e1e173fb1456e673c6d475fac4c90d5122b240338d43b767e3cd329ffd63","target":"record","created_at":"2026-05-18T04:29:24Z","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":"80a3884754e5f5e32616cc83850a35b6b949423ad2489c1c2020ca349cb934ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-30T20:20:48Z","title_canon_sha256":"b68e2f500ba92c51dc08db4e26e242b38bfa1330678004ec5766b2bcc5908a4a"},"schema_version":"1.0","source":{"id":"0812.4582","kind":"arxiv","version":1}},"canonical_sha256":"cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf191b304f0c014328c52167858e74b8c8ed449f83aca2726e9a067565d0b866","first_computed_at":"2026-05-18T04:29:24.267080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:24.267080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"irGwvcvlS8Lm1IQ05Ug2viTptUhH3rEp9pxuazixdBENo6QOafwl/lX38o+JzKscNOF22c/ymgaREXB1H8QpAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:24.267629Z","signed_message":"canonical_sha256_bytes"},"source_id":"0812.4582","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f52e1e173fb1456e673c6d475fac4c90d5122b240338d43b767e3cd329ffd63","sha256:587a455fa0713dcafbf34a5fabfffcd250285c93ed467f16b32ebadcdda96ac5"],"state_sha256":"9db304f360cd5b17719881dfd4fb1f48c5ffa15d9667bbe677b6b4cb43f40f52"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tw0thDjAM8TN+2McJtSqJfQkzahjHy0fECsG2SkQkJJF6YOtky6mngsKUqK8gtWxU3REIpHgGcAq4UwleqlWBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T17:38:49.637772Z","bundle_sha256":"55edcb2270d02f5c4b5330ad6d823afde0d8db5e79059fb7e6d44e5d9d4b3e19"}}