{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:WHIH7AOUFNDXCSPTKH7FNNF2U4","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":"dee4493786a10568b1c705aa167e58c41a72b2bc1a946186d2674199b8d2f6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-11T15:10:51Z","title_canon_sha256":"19421d66ec2654670c6ed04e977313e3322e57d5c157c73a634db5a58f50f80b"},"schema_version":"1.0","source":{"id":"1705.04233","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.04233","created_at":"2026-05-18T00:44:39Z"},{"alias_kind":"arxiv_version","alias_value":"1705.04233v1","created_at":"2026-05-18T00:44:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.04233","created_at":"2026-05-18T00:44:39Z"},{"alias_kind":"pith_short_12","alias_value":"WHIH7AOUFNDX","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WHIH7AOUFNDXCSPT","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WHIH7AOU","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:3f40d9a4d2224d0784d9f7d174d091fbb24fa0220a609facc5da83aded3b79f8","target":"graph","created_at":"2026-05-18T00:44:39Z","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":"High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation. This emission is detected with the LOFAR radio telescope in the frequency range from 10 to 240 MHz. The data are used to determine the properties of the incoming cosmic rays. The radio technique is now routinely used to measure the arrival direction, the energy, and the particle type (atomic mass) of cosmic rays in the energy range from $10^{17}$ to $10^{18}$ eV. This energy region is","authors_text":"J\\\"org R. H\\\"orandel, LOFAR key science project Cosmic Rays","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-11T15:10:51Z","title":"Measurement of the properites of cosmic rays with the LOFAR radio telescope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.04233","kind":"arxiv","version":1},"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:adca2d5b285ccf50277f170716065c959315a32d946c22c4e981721c6de6af39","target":"record","created_at":"2026-05-18T00:44:39Z","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":"dee4493786a10568b1c705aa167e58c41a72b2bc1a946186d2674199b8d2f6a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-11T15:10:51Z","title_canon_sha256":"19421d66ec2654670c6ed04e977313e3322e57d5c157c73a634db5a58f50f80b"},"schema_version":"1.0","source":{"id":"1705.04233","kind":"arxiv","version":1}},"canonical_sha256":"b1d07f81d42b477149f351fe56b4baa73ec2203dc0222e92126890b169a05b88","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1d07f81d42b477149f351fe56b4baa73ec2203dc0222e92126890b169a05b88","first_computed_at":"2026-05-18T00:44:39.414865Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:39.414865Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W5DEtd1MZjzM2HZV/gqBNyQTUHpK3qnPlPYutX0b9n/0dZtK9vZySvHZZ7u1LYUX5BvKk0K9+2j2HIzMbKvxDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:39.415364Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.04233","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:adca2d5b285ccf50277f170716065c959315a32d946c22c4e981721c6de6af39","sha256:3f40d9a4d2224d0784d9f7d174d091fbb24fa0220a609facc5da83aded3b79f8"],"state_sha256":"fcea037f77b2effdc0ce4bf48d685b2845a7590ffed7b7318f2e8d7d8ded15b3"}