{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5UTKV2V7ALU74PCO5KDIH7Z6PF","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":"bb70fd57cbf51b678520964e831774f21cc10e5c041d7a4e791e7691685df5e8","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-16T21:23:44Z","title_canon_sha256":"a9998b755133d9e00058ba07b9c96add403c55409ad0330e3b088f567e0d747b"},"schema_version":"1.0","source":{"id":"1409.4809","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.4809","created_at":"2026-05-18T02:25:32Z"},{"alias_kind":"arxiv_version","alias_value":"1409.4809v3","created_at":"2026-05-18T02:25:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4809","created_at":"2026-05-18T02:25:32Z"},{"alias_kind":"pith_short_12","alias_value":"5UTKV2V7ALU7","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"5UTKV2V7ALU74PCO","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"5UTKV2V7","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:f80f0ea5a3caa427d01ad21cb3da2e09db0b2a550412e03225c43623743a2653","target":"graph","created_at":"2026-05-18T02:25:32Z","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 report a study of the distributions of the depth of maximum, Xmax, of extensive air-shower profiles with energies above 10^17.8 eV as observed with the fluorescence telescopes of the Pierre Auger Observatory. The analysis method for selecting a data sample with minimal sampling bias is described in detail as well as the experimental cross-checks and systematic uncertainties. Furthermore, we discuss the detector acceptance and the resolution of the Xmax measurement and provide parameterizations thereof as a function of energy. The energy dependence of the mean and standard deviation of the X","authors_text":"Pierre Auger Collaboration","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-16T21:23:44Z","title":"Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Measurements at Energies above 10^17.8 eV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4809","kind":"arxiv","version":3},"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":"sha256:329fb6676faa7193c2eb2607fecbebeb8ad74db37ece9b83144d71ffd2869807","target":"record","created_at":"2026-05-18T02:25:32Z","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":"bb70fd57cbf51b678520964e831774f21cc10e5c041d7a4e791e7691685df5e8","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-16T21:23:44Z","title_canon_sha256":"a9998b755133d9e00058ba07b9c96add403c55409ad0330e3b088f567e0d747b"},"schema_version":"1.0","source":{"id":"1409.4809","kind":"arxiv","version":3}},"canonical_sha256":"ed26aaeabf02e9fe3c4eea8683ff3e7941830a8d4d95abfdf3db975ced751077","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed26aaeabf02e9fe3c4eea8683ff3e7941830a8d4d95abfdf3db975ced751077","first_computed_at":"2026-05-18T02:25:32.497528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:32.497528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fv4QH+EdJSpysyp274sDJYU6kHZW8MisHCitL07Rc2zfX3atmyDeFut0gsn1wGIEBWt6S3i4+ng7BwlwZGubAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:32.497966Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.4809","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:329fb6676faa7193c2eb2607fecbebeb8ad74db37ece9b83144d71ffd2869807","sha256:f80f0ea5a3caa427d01ad21cb3da2e09db0b2a550412e03225c43623743a2653"],"state_sha256":"328ce7f9360455ffe8eaeb6db47239063adb058da091c5af214e500be65825a3"}