{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QSFENRS3KSGAOV4PU3NFNIPS3T","short_pith_number":"pith:QSFENRS3","canonical_record":{"source":{"id":"1404.3561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T12:50:52Z","cross_cats_sorted":[],"title_canon_sha256":"732bda1d5db6d156a4cfac8041b4ba2fc8463d43764586afbef6acdfe17c7a81","abstract_canon_sha256":"8aeeb90be544bf091b824f32773e8ab54d412d88c2f211823b7e48f31e08f4b9"},"schema_version":"1.0"},"canonical_sha256":"848a46c65b548c07578fa6da56a1f2dce23c4a816f00d9e60d62c0b5c0b928f8","source":{"kind":"arxiv","id":"1404.3561","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3561","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3561v1","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3561","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"QSFENRS3KSGA","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QSFENRS3KSGAOV4P","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QSFENRS3","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QSFENRS3KSGAOV4PU3NFNIPS3T","target":"record","payload":{"canonical_record":{"source":{"id":"1404.3561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T12:50:52Z","cross_cats_sorted":[],"title_canon_sha256":"732bda1d5db6d156a4cfac8041b4ba2fc8463d43764586afbef6acdfe17c7a81","abstract_canon_sha256":"8aeeb90be544bf091b824f32773e8ab54d412d88c2f211823b7e48f31e08f4b9"},"schema_version":"1.0"},"canonical_sha256":"848a46c65b548c07578fa6da56a1f2dce23c4a816f00d9e60d62c0b5c0b928f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:34.975642Z","signature_b64":"xzbCU+xhe0/UbqWc4ePAOTkzk3wVoyS8CauODm8cmcheoRLnX12JZ66mIiXuIGue5JjvhKWxuF2wBhPfMl2cDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"848a46c65b548c07578fa6da56a1f2dce23c4a816f00d9e60d62c0b5c0b928f8","last_reissued_at":"2026-05-18T01:43:34.974863Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:34.974863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.3561","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":"2026-05-18T01:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WXFVlIBN17DV0c9qQ/3dLVuJaUUYRkBvHEC8WyCZ11/+uipIT9oCEXQ8ZwgWIMfRgIA0fg3dC0kFSyM1H3xTCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:02:53.736792Z"},"content_sha256":"bd3ee9ac87e7e33dea1fd749cfa0652f579c80a383b6e53f04a166fcb0d80eba","schema_version":"1.0","event_id":"sha256:bd3ee9ac87e7e33dea1fd749cfa0652f579c80a383b6e53f04a166fcb0d80eba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QSFENRS3KSGAOV4PU3NFNIPS3T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The broad band spectral variability of MCG-6-30-15 observed by NuSTAR and XMM-Newton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. C. Fabian, A. Marinucci, C.J. Hailey, C. S. Reynolds, D. J. Walton, D. K. Stern, D. R. Ballantyne, E. Kara, F. A. Harrison, F. E. Christensen, G. Matt, G. Miniutti, G. Risaliti, L. Brenneman, M. Cappi, M. Elvis, M. Guainazzi, M. L. Parker, P. Arevalo, S. E. Boggs, W. W. Craig, W. Zhang","submitted_at":"2014-04-14T12:50:52Z","abstract_excerpt":"MCG-6-30-15, at a distance of 37 Mpc (z=0.008), is the archetypical Seyfert 1 galaxy showing very broad Fe K$\\alpha$ emission. We present results from a joint NuSTAR and XMM-Newton observational campaign that, for the first time, allows a sensitive, time-resolved spectral analysis from 0.35 keV up to 80 keV. The strong variability of the source is best explained in terms of intrinsic X-ray flux variations and in the context of the light bending model: the primary, variable emission is reprocessed by the accretion disk, which produces secondary, less variable, reflected emission. The broad Fe K"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3561","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":"2026-05-18T01:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VXk07+V9gj3LQeyw2JvTtaL3YcyUr3WuZCviWGQ8ms/Yii/982GMSydSggcK8LuWxzAmNcI2aEhJ1P+GbgSnCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:02:53.737458Z"},"content_sha256":"00ab69916af1af1fdb3a4b2e4d3b3606e929c0f56801ef60ad05ed0c7b5bc221","schema_version":"1.0","event_id":"sha256:00ab69916af1af1fdb3a4b2e4d3b3606e929c0f56801ef60ad05ed0c7b5bc221"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/bundle.json","state_url":"https://pith.science/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/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":"2026-05-25T14:02:53Z","links":{"resolver":"https://pith.science/pith/QSFENRS3KSGAOV4PU3NFNIPS3T","bundle":"https://pith.science/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/bundle.json","state":"https://pith.science/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QSFENRS3KSGAOV4PU3NFNIPS3T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QSFENRS3KSGAOV4PU3NFNIPS3T","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":"8aeeb90be544bf091b824f32773e8ab54d412d88c2f211823b7e48f31e08f4b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T12:50:52Z","title_canon_sha256":"732bda1d5db6d156a4cfac8041b4ba2fc8463d43764586afbef6acdfe17c7a81"},"schema_version":"1.0","source":{"id":"1404.3561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3561","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3561v1","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3561","created_at":"2026-05-18T01:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"QSFENRS3KSGA","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QSFENRS3KSGAOV4P","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QSFENRS3","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:00ab69916af1af1fdb3a4b2e4d3b3606e929c0f56801ef60ad05ed0c7b5bc221","target":"graph","created_at":"2026-05-18T01:43:34Z","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":"MCG-6-30-15, at a distance of 37 Mpc (z=0.008), is the archetypical Seyfert 1 galaxy showing very broad Fe K$\\alpha$ emission. We present results from a joint NuSTAR and XMM-Newton observational campaign that, for the first time, allows a sensitive, time-resolved spectral analysis from 0.35 keV up to 80 keV. The strong variability of the source is best explained in terms of intrinsic X-ray flux variations and in the context of the light bending model: the primary, variable emission is reprocessed by the accretion disk, which produces secondary, less variable, reflected emission. The broad Fe K","authors_text":"A. C. Fabian, A. Marinucci, C.J. Hailey, C. S. Reynolds, D. J. Walton, D. K. Stern, D. R. Ballantyne, E. Kara, F. A. Harrison, F. E. Christensen, G. Matt, G. Miniutti, G. Risaliti, L. Brenneman, M. Cappi, M. Elvis, M. Guainazzi, M. L. Parker, P. Arevalo, S. E. Boggs, W. W. Craig, W. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T12:50:52Z","title":"The broad band spectral variability of MCG-6-30-15 observed by NuSTAR and XMM-Newton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3561","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:bd3ee9ac87e7e33dea1fd749cfa0652f579c80a383b6e53f04a166fcb0d80eba","target":"record","created_at":"2026-05-18T01:43:34Z","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":"8aeeb90be544bf091b824f32773e8ab54d412d88c2f211823b7e48f31e08f4b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-04-14T12:50:52Z","title_canon_sha256":"732bda1d5db6d156a4cfac8041b4ba2fc8463d43764586afbef6acdfe17c7a81"},"schema_version":"1.0","source":{"id":"1404.3561","kind":"arxiv","version":1}},"canonical_sha256":"848a46c65b548c07578fa6da56a1f2dce23c4a816f00d9e60d62c0b5c0b928f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"848a46c65b548c07578fa6da56a1f2dce23c4a816f00d9e60d62c0b5c0b928f8","first_computed_at":"2026-05-18T01:43:34.974863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:34.974863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xzbCU+xhe0/UbqWc4ePAOTkzk3wVoyS8CauODm8cmcheoRLnX12JZ66mIiXuIGue5JjvhKWxuF2wBhPfMl2cDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:34.975642Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.3561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd3ee9ac87e7e33dea1fd749cfa0652f579c80a383b6e53f04a166fcb0d80eba","sha256:00ab69916af1af1fdb3a4b2e4d3b3606e929c0f56801ef60ad05ed0c7b5bc221"],"state_sha256":"a53373c67fe395c282c29060bba35263683c1365aa907e3b773f5d34a1fac9c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"15k6bzq5jqT/yzPL4aGcZtEbZ6IVbDEr5Rs/eA8GlRcpm8jxouX97rL+Hobcw5sj9L2k7OHr8Ksv19TjehDiAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:02:53.741188Z","bundle_sha256":"9e843a5511625253c9520410b9dfcbf6a86ac9f3476661662903864871a0cf39"}}