{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SHA3PGNQVDYVHL4PRC74474SAH","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":"459db20456473705d3ccf53c112ebf3c10c6aa1894f71dd1a135c9503c8d3bca","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-09T14:26:08Z","title_canon_sha256":"61cbcf94d6e5b3ca9a2f622f985d215009a4f1acb8a6c99a66d04d0ddd62c6b4"},"schema_version":"1.0","source":{"id":"1811.03920","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03920","created_at":"2026-05-17T23:49:59Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03920v2","created_at":"2026-05-17T23:49:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03920","created_at":"2026-05-17T23:49:59Z"},{"alias_kind":"pith_short_12","alias_value":"SHA3PGNQVDYV","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SHA3PGNQVDYVHL4P","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SHA3PGNQ","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:a0fc175c25d1cfca839311a6210fc4969bcfd4d9817e24e743bea91ee66713d4","target":"graph","created_at":"2026-05-17T23:49:59Z","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":"We present the results of the search for ultra-high-energy photons with nine years of data from the Telescope Array surface detector. A multivariate classifier is built upon 16 reconstructed parameters of the extensive air shower. These parameters are related to the curvature and the width of the shower front, the steepness of the lateral distribution function, and the timing parameters of the waveforms sensitive to the shower muon content. A total number of two photon candidates found in the search is fully compatible with the expected background. The $95\\%\\,$CL limits on the diffuse flux of ","authors_text":"A. Di Matteo, A. Oshima, A. Taketa, B.G. Cheon, B.K. Shin, B. Lubsandorzhiev, B.T. Stokes, C.C.H. Jui, D.C. Rodriguez, D. Ikeda, D. Ivanov, D.R. Bergman, D. Ryu, E. Barcikowski, E. Kido, F. Kakimoto, F. Shibata, F. Urban, G.B. Thomson, G. Furlich, G. Rubtsov, H.B. Kim, H. Ito, H. Kawai, H.M. Jeong, H. Oda, H. Ohoka, H. Sagawa, H. Shimodaira, H.S. Shin, H. Tanaka, H. Tokuno, H. Yamaoka, H. Yoshii, I.H. Park, I. Myers, I. Tkachev, J. Chiba, J.D. Smith, J.H. Kim, J.N. Matthews, J. Ogura, J.P. Lundquist, J. Remington, J.W. Belz, J. Yang, K. Fujita, K. Hibino, K.H. Lee, K. Honda, K. Kadota, K. Kasahara, K. Kawata, K. Machida, K. Martens, K. Mukai, K. Nagasawa, K. Saito, K. Sekino, K. Tanaka, K. Tsutsumi, K. Yamazaki, K. Yashiro, L.M. Scott, M. Abe, M. Allen, M. Chikawa, M. Fukushima, M. Hayashi, M. Kuznetsov, M. Minamino, M. Ohnishi, M. Ono, M.S. Piskunov, M.S. Pshirkov, M. Takamura, M. Takeda, M. Takita, M. Tanaka, M. Yamamoto, N. Hayashida, N. Inoue, N. Sakaki, N. Sakurai, O. Kalashev, P.D. Shah, P. Sokolsky, P. Tinyakov, R. Azuma, R. Cady, R. Ishimori, R. Mayta, R. Nakamura, R. Onogi, R. Sahara, R. Takeishi, R.U. Abbasi, R. Yamane, S.A. Blake, S.B. Thomas, S. Jeong, S. Kawakami, S. Kawana, S. Kishigami, S. Kitamura, S. Nagataki, S. Ogio, S. Ozawa, S.R. Stratton, S. Troitsky, S. Udo, S. Yoshida, T. Abu-Zayyad, T.A. Stroman, Telescope Array Collaboration, T. Fujii, T. Goto, T. Ishii, T. Matsuyama, T. Nakamura, T. Nonaka, T. Okuda, T. Seki, T. Shibata, T. Suzawa, T. Tomida, T. Wong, V. Kuzmin, W. Hanlon, Y. Hayashi, Y.J. Kwon, Y. Kitamura, Y. Omura, Y. Saito, Y. Takagi, Y. Takahashi, Y. Tameda, Y. Tsunesada, Y. Uchihori, Y. Yoneda, Y. Zhezher, Z. Zundel","cross_cats":["hep-ex","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-09T14:26:08Z","title":"Constraints on the diffuse photon flux with energies above $10^{18}$ eV using the surface detector of the Telescope Array experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03920","kind":"arxiv","version":2},"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":"sha256:7721918e39eddb983d7b63788d0527ef0a501255a9f8fa24987db3de21229cc2","target":"record","created_at":"2026-05-17T23:49:59Z","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":"459db20456473705d3ccf53c112ebf3c10c6aa1894f71dd1a135c9503c8d3bca","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-09T14:26:08Z","title_canon_sha256":"61cbcf94d6e5b3ca9a2f622f985d215009a4f1acb8a6c99a66d04d0ddd62c6b4"},"schema_version":"1.0","source":{"id":"1811.03920","kind":"arxiv","version":2}},"canonical_sha256":"91c1b799b0a8f153af8f88bfce7f9201ceff7d5a20cc3522be11479176957c32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91c1b799b0a8f153af8f88bfce7f9201ceff7d5a20cc3522be11479176957c32","first_computed_at":"2026-05-17T23:49:59.508417Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:59.508417Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tK4C1cpy1CHCHhVX5XZGDwGSzkEijS4hL9ZitXIlomidm/VOxhrH5PkmRY57GY/bYMlme8qpc1TL6FemZDhQAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:59.508851Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.03920","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7721918e39eddb983d7b63788d0527ef0a501255a9f8fa24987db3de21229cc2","sha256:a0fc175c25d1cfca839311a6210fc4969bcfd4d9817e24e743bea91ee66713d4"],"state_sha256":"e69bec41472177eee97daf250fa4312fb5322b5866dd204fd0625f3e57a0109f"}