{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:5FV4I5UOSCVSIDR5TDK65S2L6U","short_pith_number":"pith:5FV4I5UO","schema_version":"1.0","canonical_sha256":"e96bc4768e90ab240e3d98d5eecb4bf51aaffeadf0c0815b7c299f470ce7d071","source":{"kind":"arxiv","id":"astro-ph/0008505","version":1},"attestation_state":"computed","paper":{"title":"Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk421 in 1998","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Degrange, C.M. Urry, F. Aharonian, F. Makino, F. Piron, F. Takahara, G. Fossati, G. Madejski, H. Krawczynski, H. Kubo, H. Marshall, H. Terasranta, J. Kataoka, J. Mattox, L. Chiappetti, L. Maraschi, M. Catanese, M. Tashiro, P. Coppi, R. Remillard, S. Wagner, T. Takahashi, T. Weekes","submitted_at":"2000-08-31T05:08:44Z","abstract_excerpt":"We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA observation started three days later. In the X-ray data, we detected multiple flares, occuring on time scales of about one day. ASCA data clearly reveal spectral variability. The comparison of the data from ASCA, EUVE and RXTE indicates that the variability amplitudes in the low energy synchrotron component are larger at higher photon energies. In TeV Gamma-rays, large intra-day variations -- which were correlated with t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/0008505","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-08-31T05:08:44Z","cross_cats_sorted":[],"title_canon_sha256":"009a89bf2f3900ab54afe9f7872066f6945d7a4d560acfb122b3fa2aa11019b1","abstract_canon_sha256":"abf0be07b45f215e4b9e5a786938f6f5a398e596552d39fa962615ac90465393"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:17:05.906449Z","signature_b64":"exg0386r27QxhyX4PKZzykwGJioeB6oRgsB3MJuyXVxQ88uOBD3QK1P2SB5Wt/Klvnyh1ZPAVnF5PczdV2oLBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e96bc4768e90ab240e3d98d5eecb4bf51aaffeadf0c0815b7c299f470ce7d071","last_reissued_at":"2026-07-04T16:17:05.905998Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:17:05.905998Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk421 in 1998","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Degrange, C.M. Urry, F. Aharonian, F. Makino, F. Piron, F. Takahara, G. Fossati, G. Madejski, H. Krawczynski, H. Kubo, H. Marshall, H. Terasranta, J. Kataoka, J. Mattox, L. Chiappetti, L. Maraschi, M. Catanese, M. Tashiro, P. Coppi, R. Remillard, S. Wagner, T. Takahashi, T. Weekes","submitted_at":"2000-08-31T05:08:44Z","abstract_excerpt":"We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA observation started three days later. In the X-ray data, we detected multiple flares, occuring on time scales of about one day. ASCA data clearly reveal spectral variability. The comparison of the data from ASCA, EUVE and RXTE indicates that the variability amplitudes in the low energy synchrotron component are larger at higher photon energies. In TeV Gamma-rays, large intra-day variations -- which were correlated with t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0008505","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/astro-ph/0008505/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0008505","created_at":"2026-07-04T16:17:05.906058+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0008505v1","created_at":"2026-07-04T16:17:05.906058+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0008505","created_at":"2026-07-04T16:17:05.906058+00:00"},{"alias_kind":"pith_short_12","alias_value":"5FV4I5UOSCVS","created_at":"2026-07-04T16:17:05.906058+00:00"},{"alias_kind":"pith_short_16","alias_value":"5FV4I5UOSCVSIDR5","created_at":"2026-07-04T16:17:05.906058+00:00"},{"alias_kind":"pith_short_8","alias_value":"5FV4I5UO","created_at":"2026-07-04T16:17:05.906058+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U","json":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U.json","graph_json":"https://pith.science/api/pith-number/5FV4I5UOSCVSIDR5TDK65S2L6U/graph.json","events_json":"https://pith.science/api/pith-number/5FV4I5UOSCVSIDR5TDK65S2L6U/events.json","paper":"https://pith.science/paper/5FV4I5UO"},"agent_actions":{"view_html":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U","download_json":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U.json","view_paper":"https://pith.science/paper/5FV4I5UO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0008505&json=true","fetch_graph":"https://pith.science/api/pith-number/5FV4I5UOSCVSIDR5TDK65S2L6U/graph.json","fetch_events":"https://pith.science/api/pith-number/5FV4I5UOSCVSIDR5TDK65S2L6U/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U/action/storage_attestation","attest_author":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U/action/author_attestation","sign_citation":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U/action/citation_signature","submit_replication":"https://pith.science/pith/5FV4I5UOSCVSIDR5TDK65S2L6U/action/replication_record"}},"created_at":"2026-07-04T16:17:05.906058+00:00","updated_at":"2026-07-04T16:17:05.906058+00:00"}