{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:5ZX2KZHLTZ7O6PGTARTQ5TI4GR","short_pith_number":"pith:5ZX2KZHL","schema_version":"1.0","canonical_sha256":"ee6fa564eb9e7eef3cd304670ecd1c346836f143f05728c8a693a609ce2a3f2b","source":{"kind":"arxiv","id":"astro-ph/0612562","version":1},"attestation_state":"computed","paper":{"title":"The Energy Spectrum of the Blazar Markarian 421 Above 130 GeV","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Jarvis, C. E. Covault, C. Mueller, D. A. Bramel, D. A. Williams, D. Driscoll, D. M. Gingrich, D. S. Hanna, J. Ball, J.E. Carson, J. Kildea, J. Zweerink, K. Ragan, P. Fortin, R. A. Ong, R. A. Scalzo, R. Mukherjee, T. Lindner","submitted_at":"2006-12-19T21:47:40Z","abstract_excerpt":"Markarian 421 (Mrk 421) was the first blazar detected at gamma-ray energies above 300 GeV, and it remains one of only twelve TeV blazars detected to date. TeV gamma-ray measurements of its flaring activity and spectral variability have placed constraints on models of the high-energy emission from blazars. However, observations between 50 and 300 GeV are rare, and the high-energy peak of the spectral energy distribution (SED), predicted to be in this range, has never been directly detected. We present a detection of Mrk 421 above 100 GeV as made by the Solar Tower Atmospheric Cherenkov Effect E"},"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/0612562","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-19T21:47:40Z","cross_cats_sorted":[],"title_canon_sha256":"145dad0fdbd75a9da9c16119f784b7868f0e977c3861963cb1c7bca0e57ec6da","abstract_canon_sha256":"6df9e0bb54d11e59daa42ceab1a3d4cbca45b4e35afd40c7824e3d5e8e914613"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:21:50.889186Z","signature_b64":"ONcFKrdk/UQ4wZAvrQRmqVOQnxQwbdzaijQ1t+tU0gUWuZvz3VXsJgD/xof7xsmxWBvrgDLkUjlllY0G+fK0Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ee6fa564eb9e7eef3cd304670ecd1c346836f143f05728c8a693a609ce2a3f2b","last_reissued_at":"2026-07-04T15:21:50.888715Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:21:50.888715Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Energy Spectrum of the Blazar Markarian 421 Above 130 GeV","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Jarvis, C. E. Covault, C. Mueller, D. A. Bramel, D. A. Williams, D. Driscoll, D. M. Gingrich, D. S. Hanna, J. Ball, J.E. Carson, J. Kildea, J. Zweerink, K. Ragan, P. Fortin, R. A. Ong, R. A. Scalzo, R. Mukherjee, T. Lindner","submitted_at":"2006-12-19T21:47:40Z","abstract_excerpt":"Markarian 421 (Mrk 421) was the first blazar detected at gamma-ray energies above 300 GeV, and it remains one of only twelve TeV blazars detected to date. TeV gamma-ray measurements of its flaring activity and spectral variability have placed constraints on models of the high-energy emission from blazars. However, observations between 50 and 300 GeV are rare, and the high-energy peak of the spectral energy distribution (SED), predicted to be in this range, has never been directly detected. We present a detection of Mrk 421 above 100 GeV as made by the Solar Tower Atmospheric Cherenkov Effect E"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0612562","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/0612562/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/0612562","created_at":"2026-07-04T15:21:50.888784+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0612562v1","created_at":"2026-07-04T15:21:50.888784+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0612562","created_at":"2026-07-04T15:21:50.888784+00:00"},{"alias_kind":"pith_short_12","alias_value":"5ZX2KZHLTZ7O","created_at":"2026-07-04T15:21:50.888784+00:00"},{"alias_kind":"pith_short_16","alias_value":"5ZX2KZHLTZ7O6PGT","created_at":"2026-07-04T15:21:50.888784+00:00"},{"alias_kind":"pith_short_8","alias_value":"5ZX2KZHL","created_at":"2026-07-04T15:21:50.888784+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/5ZX2KZHLTZ7O6PGTARTQ5TI4GR","json":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR.json","graph_json":"https://pith.science/api/pith-number/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/graph.json","events_json":"https://pith.science/api/pith-number/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/events.json","paper":"https://pith.science/paper/5ZX2KZHL"},"agent_actions":{"view_html":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR","download_json":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR.json","view_paper":"https://pith.science/paper/5ZX2KZHL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0612562&json=true","fetch_graph":"https://pith.science/api/pith-number/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/graph.json","fetch_events":"https://pith.science/api/pith-number/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/action/storage_attestation","attest_author":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/action/author_attestation","sign_citation":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/action/citation_signature","submit_replication":"https://pith.science/pith/5ZX2KZHLTZ7O6PGTARTQ5TI4GR/action/replication_record"}},"created_at":"2026-07-04T15:21:50.888784+00:00","updated_at":"2026-07-04T15:21:50.888784+00:00"}