{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:2VJ6LUHRQGKSX3EVYCUB3FVDXM","short_pith_number":"pith:2VJ6LUHR","schema_version":"1.0","canonical_sha256":"d553e5d0f181952bec95c0a81d96a3bb366ea165fb9a8a6dd9093d7c51d614d9","source":{"kind":"arxiv","id":"astro-ph/0209194","version":1},"attestation_state":"computed","paper":{"title":"STACEE Observations of Markarian 421 During an Extended Gamma-Ray Outburst","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. E. Covault, C. G. Theoret, C. Mueller, D. A. Williams, D. Bramel, D. M. Gingrich, D. R. Schuette, D. S. Hanna, E. Chae, J. A. Hinton, K. Ragan, P. Fortin, R. A. Ong, R. A. Scalzo, R. Mukherjee, STACEE Collaboration: L. M. Boone","submitted_at":"2002-09-10T21:18:26Z","abstract_excerpt":"The active galaxy Markarian 421 underwent a substantial outburst in early 2001. Between January and May of that year, the STACEE detector was used to observe the source in gamma-rays between the energies of 50 and 500 GeV. These observations represent the lowest energy gamma-ray detection of this outburst by a ground-based experiment. Here we present results from these observations, which indicate an average integral gamma-ray flux of (8.0 +/- 0.7 +/- 1.5)x10^-10 1/cm^2/s. above 140 GeV. We also present a light curve for Markarian 421 as observed by STACEE from March to May, and compare our te"},"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/0209194","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-09-10T21:18:26Z","cross_cats_sorted":[],"title_canon_sha256":"02ca02fc0b10c8a6895c2994109fa786cd9cc7460cd6208df68a72cdac2f4fb9","abstract_canon_sha256":"1bd51b71f0c795a6c4991d2d123fd5595bfdf6664ef90f28dd6abbde5a092ead"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:45.909388Z","signature_b64":"F4Dnkq/rOV6osc4S1A7Tfs7QrS7K1ChoBwG+mYBDHv1YlkbTgZj9h/tgfmnCL3yYNAYgFUgTiMbUYiXkNJlBCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d553e5d0f181952bec95c0a81d96a3bb366ea165fb9a8a6dd9093d7c51d614d9","last_reissued_at":"2026-07-04T16:30:45.908948Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:45.908948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"STACEE Observations of Markarian 421 During an Extended Gamma-Ray Outburst","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. E. Covault, C. G. Theoret, C. Mueller, D. A. Williams, D. Bramel, D. M. Gingrich, D. R. Schuette, D. S. Hanna, E. Chae, J. A. Hinton, K. Ragan, P. Fortin, R. A. Ong, R. A. Scalzo, R. Mukherjee, STACEE Collaboration: L. M. Boone","submitted_at":"2002-09-10T21:18:26Z","abstract_excerpt":"The active galaxy Markarian 421 underwent a substantial outburst in early 2001. Between January and May of that year, the STACEE detector was used to observe the source in gamma-rays between the energies of 50 and 500 GeV. These observations represent the lowest energy gamma-ray detection of this outburst by a ground-based experiment. Here we present results from these observations, which indicate an average integral gamma-ray flux of (8.0 +/- 0.7 +/- 1.5)x10^-10 1/cm^2/s. above 140 GeV. We also present a light curve for Markarian 421 as observed by STACEE from March to May, and compare our te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0209194","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/0209194/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/0209194","created_at":"2026-07-04T16:30:45.909006+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0209194v1","created_at":"2026-07-04T16:30:45.909006+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0209194","created_at":"2026-07-04T16:30:45.909006+00:00"},{"alias_kind":"pith_short_12","alias_value":"2VJ6LUHRQGKS","created_at":"2026-07-04T16:30:45.909006+00:00"},{"alias_kind":"pith_short_16","alias_value":"2VJ6LUHRQGKSX3EV","created_at":"2026-07-04T16:30:45.909006+00:00"},{"alias_kind":"pith_short_8","alias_value":"2VJ6LUHR","created_at":"2026-07-04T16:30:45.909006+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/2VJ6LUHRQGKSX3EVYCUB3FVDXM","json":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM.json","graph_json":"https://pith.science/api/pith-number/2VJ6LUHRQGKSX3EVYCUB3FVDXM/graph.json","events_json":"https://pith.science/api/pith-number/2VJ6LUHRQGKSX3EVYCUB3FVDXM/events.json","paper":"https://pith.science/paper/2VJ6LUHR"},"agent_actions":{"view_html":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM","download_json":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM.json","view_paper":"https://pith.science/paper/2VJ6LUHR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0209194&json=true","fetch_graph":"https://pith.science/api/pith-number/2VJ6LUHRQGKSX3EVYCUB3FVDXM/graph.json","fetch_events":"https://pith.science/api/pith-number/2VJ6LUHRQGKSX3EVYCUB3FVDXM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM/action/storage_attestation","attest_author":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM/action/author_attestation","sign_citation":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM/action/citation_signature","submit_replication":"https://pith.science/pith/2VJ6LUHRQGKSX3EVYCUB3FVDXM/action/replication_record"}},"created_at":"2026-07-04T16:30:45.909006+00:00","updated_at":"2026-07-04T16:30:45.909006+00:00"}