{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PD4ISHQQ72V5CHXB24TBZKSLEC","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":"7d460ac52962c09814ed3d7c1f924ee9eb1d8d139a90eeb3674c50c675e379d1","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-02-02T18:13:29Z","title_canon_sha256":"e142398d6cd4d3951ea34ac2c7331ea7c3c08747e86fece988a5e47d685dd8a7"},"schema_version":"1.0","source":{"id":"2102.01656","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2102.01656","created_at":"2026-07-05T02:22:40Z"},{"alias_kind":"arxiv_version","alias_value":"2102.01656v2","created_at":"2026-07-05T02:22:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2102.01656","created_at":"2026-07-05T02:22:40Z"},{"alias_kind":"pith_short_12","alias_value":"PD4ISHQQ72V5","created_at":"2026-07-05T02:22:40Z"},{"alias_kind":"pith_short_16","alias_value":"PD4ISHQQ72V5CHXB","created_at":"2026-07-05T02:22:40Z"},{"alias_kind":"pith_short_8","alias_value":"PD4ISHQQ","created_at":"2026-07-05T02:22:40Z"}],"graph_snapshots":[{"event_id":"sha256:261a1889e74dd4ffc0025add85c8e8c2e818be8206bc143964ca8d4347be146c","target":"graph","created_at":"2026-07-05T02:22:40Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2102.01656/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Pierre Auger Observatory is designed to study cosmic rays of the highest energies ($>10^{19}$ eV). The ground array of the Observatory will consist of 1600 water Cherenkov detectors deployed over 3000 km^2. The remoteness and large number of detectors require a robust, automatic self-calibration procedure. It relies on the measurement of the average charge collected by a photomultiplier tube from the Cherenkov light produced by a vertical and central through-going muon determined to 5 - 10% at the detector via a novel rate-based technique and to 3% precision through analysis of histograms ","authors_text":"A. Creusot, A. Etchegoyen. A. Filevitch, A. Tripathi, C. Bonifazi, C.M. Grunfeld, D. Barnhill, D. Dornic, D. Nitz, D. Supanitsky, E. Moreno, F. Arneodo, H. Salazar, I. Lhenry-Yvon, J.J. Beatty, L. Villasenor (for the Pierre Auger collaboration), M. Aglietta, M.C. Medina, M. Urban, N.G. Busca, P. Bauleo, P.L. Ghia, P.S. Allison, S. Ranchon, T. Ohnuki, T. Suomij\\\"arvi, X. Bertou","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-02-02T18:13:29Z","title":"Calibration of the Surface Array of the Pierre Auger Observatory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2102.01656","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:f2c666221597beb9b96c96ea90b84363b978cf7c5c3881257bbfe979240ed354","target":"record","created_at":"2026-07-05T02:22:40Z","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":"7d460ac52962c09814ed3d7c1f924ee9eb1d8d139a90eeb3674c50c675e379d1","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-02-02T18:13:29Z","title_canon_sha256":"e142398d6cd4d3951ea34ac2c7331ea7c3c08747e86fece988a5e47d685dd8a7"},"schema_version":"1.0","source":{"id":"2102.01656","kind":"arxiv","version":2}},"canonical_sha256":"78f8891e10feabd11ee1d7261caa4b208540fff4f45a11fedeba1e0139aeee52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"78f8891e10feabd11ee1d7261caa4b208540fff4f45a11fedeba1e0139aeee52","first_computed_at":"2026-07-05T02:22:40.844210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:22:40.844210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9snpDWjUPwOANuhnh2xdiqJu0xHmVRkkRPI9QH4LGV3DvqnflJ1ywNHoVsqQUmt2TqHEt+6Q6ZrvU31VjOyOAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:22:40.844602Z","signed_message":"canonical_sha256_bytes"},"source_id":"2102.01656","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2c666221597beb9b96c96ea90b84363b978cf7c5c3881257bbfe979240ed354","sha256:261a1889e74dd4ffc0025add85c8e8c2e818be8206bc143964ca8d4347be146c"],"state_sha256":"1eb40f8a43ba775eb320cedd894a358e9bb8dba003bfffa5741595c4d7f45a3b"}