{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:7RKUGQCNAP77ILSMNK25FHH6YY","short_pith_number":"pith:7RKUGQCN","schema_version":"1.0","canonical_sha256":"fc5543404d03fff42e4c6ab5d29cfec636408d1a79ab4c1266e0eed7d465c8ab","source":{"kind":"arxiv","id":"astro-ph/0603529","version":1},"attestation_state":"computed","paper":{"title":"Discovery of VHE gamma-ray emission from 1ES1218+30.4","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Armada, A. Biland, A. Chilingarian, A. De Angelis, A. Laille, B. De Lotto, C. Baixeras, C. Bigongiari, D. Bastieri, D. Dorner, D. Ferenc, D. Hakobyan, D. Hoehne, D. Kranich, E. Aliu, E. Bisesi, E. Domingo-Santamaria, E. Fernandez, E. Lindfors, et al, F. Dazzi, F. Goebel, H. Anderhub, H. Bartko, I. Britvitch, J. A. Barrio, J. A. Coarasa, J. Cortina, J. Flix, J. Hose, J. L. Contreras, K. Berger, L. Font, MAGIC Collaboration: J. Albert, M. Asensio, M. Bartelt, M. Camara, M. Doro, M. Errando, M. Fagiolini, M. Garczarczyk, M. Gaug, M. Giller, M. Hayashida, M. V. Fonseca, N. Galante, O. Kalekin, P. Antoranz, P. Jacon, P. Liebing, R. de los Reyes, R. Firpo, R. K. Bock, S. Ciprini, S. Commichau, S. R. Bavikadi, T. Bretz, T. Hengstebeck, T. Lenisa, V. Curtef, V. Danielyan, W. Bednarek","submitted_at":"2006-03-20T16:13:55Z","abstract_excerpt":"The MAGIC collaboration has studied the high peaked BL-Lac object 1ES1218+30.4 at a redshift z = 0.182, using the MAGIC imaging air Cherenkov telescope located on the Canary island of La Palma. A gamma-ray signal was observed with 6.4sigma significance. The differential energy spectrum for an energy threshold of 120GeV can be fitted by a simple power law yielding F_E(E) = (8.1+-2.1)*10^-7 (E/250GeV)^(-3.0+-0.4) TeV^-1 m^-2 s^-1. During the six days of observation in January 2005 no time variability on time scales of days was found within the statistical errors. The observed integral flux above"},"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/0603529","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-03-20T16:13:55Z","cross_cats_sorted":[],"title_canon_sha256":"cb006b8767e262e009b8086babd28f68979bde79086979dd44adf22d0da66a41","abstract_canon_sha256":"163689904d2a171fc74b2eb59324a3b2b6f734a203b2ead22ce2e8aeef598dbc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:20:29.919105Z","signature_b64":"KtovqnrZsDLSRx/I9wxHIkcRx8O2K1nRGj3YCQfr87819sxmv/2nbya/ZNgBLNs6AE2uFfgtbQS9Jfha5jGlDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fc5543404d03fff42e4c6ab5d29cfec636408d1a79ab4c1266e0eed7d465c8ab","last_reissued_at":"2026-07-04T17:20:29.918689Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:20:29.918689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Discovery of VHE gamma-ray emission from 1ES1218+30.4","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Armada, A. Biland, A. Chilingarian, A. De Angelis, A. Laille, B. De Lotto, C. Baixeras, C. Bigongiari, D. Bastieri, D. Dorner, D. Ferenc, D. Hakobyan, D. Hoehne, D. Kranich, E. Aliu, E. Bisesi, E. Domingo-Santamaria, E. Fernandez, E. Lindfors, et al, F. Dazzi, F. Goebel, H. Anderhub, H. Bartko, I. Britvitch, J. A. Barrio, J. A. Coarasa, J. Cortina, J. Flix, J. Hose, J. L. Contreras, K. Berger, L. Font, MAGIC Collaboration: J. Albert, M. Asensio, M. Bartelt, M. Camara, M. Doro, M. Errando, M. Fagiolini, M. Garczarczyk, M. Gaug, M. Giller, M. Hayashida, M. V. Fonseca, N. Galante, O. Kalekin, P. Antoranz, P. Jacon, P. Liebing, R. de los Reyes, R. Firpo, R. K. Bock, S. Ciprini, S. Commichau, S. R. Bavikadi, T. Bretz, T. Hengstebeck, T. Lenisa, V. Curtef, V. Danielyan, W. Bednarek","submitted_at":"2006-03-20T16:13:55Z","abstract_excerpt":"The MAGIC collaboration has studied the high peaked BL-Lac object 1ES1218+30.4 at a redshift z = 0.182, using the MAGIC imaging air Cherenkov telescope located on the Canary island of La Palma. A gamma-ray signal was observed with 6.4sigma significance. The differential energy spectrum for an energy threshold of 120GeV can be fitted by a simple power law yielding F_E(E) = (8.1+-2.1)*10^-7 (E/250GeV)^(-3.0+-0.4) TeV^-1 m^-2 s^-1. During the six days of observation in January 2005 no time variability on time scales of days was found within the statistical errors. The observed integral flux above"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0603529","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/0603529/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/0603529","created_at":"2026-07-04T17:20:29.918752+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0603529v1","created_at":"2026-07-04T17:20:29.918752+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0603529","created_at":"2026-07-04T17:20:29.918752+00:00"},{"alias_kind":"pith_short_12","alias_value":"7RKUGQCNAP77","created_at":"2026-07-04T17:20:29.918752+00:00"},{"alias_kind":"pith_short_16","alias_value":"7RKUGQCNAP77ILSM","created_at":"2026-07-04T17:20:29.918752+00:00"},{"alias_kind":"pith_short_8","alias_value":"7RKUGQCN","created_at":"2026-07-04T17:20:29.918752+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/7RKUGQCNAP77ILSMNK25FHH6YY","json":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY.json","graph_json":"https://pith.science/api/pith-number/7RKUGQCNAP77ILSMNK25FHH6YY/graph.json","events_json":"https://pith.science/api/pith-number/7RKUGQCNAP77ILSMNK25FHH6YY/events.json","paper":"https://pith.science/paper/7RKUGQCN"},"agent_actions":{"view_html":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY","download_json":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY.json","view_paper":"https://pith.science/paper/7RKUGQCN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0603529&json=true","fetch_graph":"https://pith.science/api/pith-number/7RKUGQCNAP77ILSMNK25FHH6YY/graph.json","fetch_events":"https://pith.science/api/pith-number/7RKUGQCNAP77ILSMNK25FHH6YY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY/action/storage_attestation","attest_author":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY/action/author_attestation","sign_citation":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY/action/citation_signature","submit_replication":"https://pith.science/pith/7RKUGQCNAP77ILSMNK25FHH6YY/action/replication_record"}},"created_at":"2026-07-04T17:20:29.918752+00:00","updated_at":"2026-07-04T17:20:29.918752+00:00"}