{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2LRKF6XGSM2B3QNIBPPLYXCFFP","short_pith_number":"pith:2LRKF6XG","canonical_record":{"source":{"id":"1210.0927","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-02T21:06:50Z","cross_cats_sorted":[],"title_canon_sha256":"79220290b4dc876adac5b0ba8f5290b5a2e638c83e1670eb327283941d4b5b99","abstract_canon_sha256":"8b859749d29bbbd853d6dee3c3c02096bb22d268ad2af91754a3c44d071dabb8"},"schema_version":"1.0"},"canonical_sha256":"d2e2a2fae693341dc1a80bdebc5c452bc8bb5b842b92dab01ec06b5426809c34","source":{"kind":"arxiv","id":"1210.0927","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.0927","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"arxiv_version","alias_value":"1210.0927v1","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.0927","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"pith_short_12","alias_value":"2LRKF6XGSM2B","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2LRKF6XGSM2B3QNI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2LRKF6XG","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2LRKF6XGSM2B3QNIBPPLYXCFFP","target":"record","payload":{"canonical_record":{"source":{"id":"1210.0927","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-02T21:06:50Z","cross_cats_sorted":[],"title_canon_sha256":"79220290b4dc876adac5b0ba8f5290b5a2e638c83e1670eb327283941d4b5b99","abstract_canon_sha256":"8b859749d29bbbd853d6dee3c3c02096bb22d268ad2af91754a3c44d071dabb8"},"schema_version":"1.0"},"canonical_sha256":"d2e2a2fae693341dc1a80bdebc5c452bc8bb5b842b92dab01ec06b5426809c34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:13.300711Z","signature_b64":"4e4MvwbcbdomeJefwGskV0KU6KO2Ip4E/gomuitCA8EYP5Jlxxd2vW+HbpUaY8nCto+4+tT1G2ims2CT8AVJCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2e2a2fae693341dc1a80bdebc5c452bc8bb5b842b92dab01ec06b5426809c34","last_reissued_at":"2026-05-18T03:44:13.300176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:13.300176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.0927","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:44:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y1AHfdDp0uiJTzb0Q35UFS2Ok76+KPkrf0AbwzSJMEabnFUD/QAr70pjXBkDxZOFS0EA33Piu+J3wvRb/5gkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T08:21:28.404535Z"},"content_sha256":"187eca329ac5c2664cdf2a137720442c035ab2fc0c83490a4c9a1713baa359f8","schema_version":"1.0","event_id":"sha256:187eca329ac5c2664cdf2a137720442c035ab2fc0c83490a4c9a1713baa359f8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2LRKF6XGSM2B3QNIBPPLYXCFFP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrahigh Energy Cosmic Rays: Review of the Current Situation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Todor Stanev","submitted_at":"2012-10-02T21:06:50Z","abstract_excerpt":"We describe the current situation of the data on the highest energy particles in the Universe - the ultrahigh energy cosmic rays. The new results in the field come from the Telescope Array experiment in Utah, U.S.A. For this reason we concentrate on the results from this experiments and compare them to the measurements of the other two recent experiments, the High Resolution Fly's Eye and the Southern Auger Observatory"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.0927","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:44:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SS3nKijClKOcI3FKaTopHEC14Wk2xXb/4/UeS1bboyqcQUNxgoarE8u7ul4H1S/BzNfRgMMYdeK8zU1HorlgCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T08:21:28.404876Z"},"content_sha256":"53e3bdffac7b90014c00753b2fadbdf6c310896e343d4ecd4d8d628ace87e2a8","schema_version":"1.0","event_id":"sha256:53e3bdffac7b90014c00753b2fadbdf6c310896e343d4ecd4d8d628ace87e2a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/bundle.json","state_url":"https://pith.science/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-28T08:21:28Z","links":{"resolver":"https://pith.science/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP","bundle":"https://pith.science/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/bundle.json","state":"https://pith.science/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2LRKF6XGSM2B3QNIBPPLYXCFFP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2LRKF6XGSM2B3QNIBPPLYXCFFP","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":"8b859749d29bbbd853d6dee3c3c02096bb22d268ad2af91754a3c44d071dabb8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-02T21:06:50Z","title_canon_sha256":"79220290b4dc876adac5b0ba8f5290b5a2e638c83e1670eb327283941d4b5b99"},"schema_version":"1.0","source":{"id":"1210.0927","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.0927","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"arxiv_version","alias_value":"1210.0927v1","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.0927","created_at":"2026-05-18T03:44:13Z"},{"alias_kind":"pith_short_12","alias_value":"2LRKF6XGSM2B","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2LRKF6XGSM2B3QNI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2LRKF6XG","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:53e3bdffac7b90014c00753b2fadbdf6c310896e343d4ecd4d8d628ace87e2a8","target":"graph","created_at":"2026-05-18T03:44:13Z","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 describe the current situation of the data on the highest energy particles in the Universe - the ultrahigh energy cosmic rays. The new results in the field come from the Telescope Array experiment in Utah, U.S.A. For this reason we concentrate on the results from this experiments and compare them to the measurements of the other two recent experiments, the High Resolution Fly's Eye and the Southern Auger Observatory","authors_text":"Todor Stanev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-02T21:06:50Z","title":"Ultrahigh Energy Cosmic Rays: Review of the Current Situation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.0927","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":"sha256:187eca329ac5c2664cdf2a137720442c035ab2fc0c83490a4c9a1713baa359f8","target":"record","created_at":"2026-05-18T03:44:13Z","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":"8b859749d29bbbd853d6dee3c3c02096bb22d268ad2af91754a3c44d071dabb8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-10-02T21:06:50Z","title_canon_sha256":"79220290b4dc876adac5b0ba8f5290b5a2e638c83e1670eb327283941d4b5b99"},"schema_version":"1.0","source":{"id":"1210.0927","kind":"arxiv","version":1}},"canonical_sha256":"d2e2a2fae693341dc1a80bdebc5c452bc8bb5b842b92dab01ec06b5426809c34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2e2a2fae693341dc1a80bdebc5c452bc8bb5b842b92dab01ec06b5426809c34","first_computed_at":"2026-05-18T03:44:13.300176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:13.300176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4e4MvwbcbdomeJefwGskV0KU6KO2Ip4E/gomuitCA8EYP5Jlxxd2vW+HbpUaY8nCto+4+tT1G2ims2CT8AVJCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:13.300711Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.0927","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:187eca329ac5c2664cdf2a137720442c035ab2fc0c83490a4c9a1713baa359f8","sha256:53e3bdffac7b90014c00753b2fadbdf6c310896e343d4ecd4d8d628ace87e2a8"],"state_sha256":"fab42eaf758247200c71ee73dada74f730467b7aea245259f1b76b37f5503989"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ro+WYF2GYq5oMXIaQE5a27wU/qoxOSWRJ+OXuuQmbuULkcjVbpm0fRxkUYxC2R+CP2b4ptwmcSNdvFrTAYVNAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T08:21:28.406812Z","bundle_sha256":"f1744c4ff42312aab7f13f85bec8f64531252ef4e175029cbc86d4011d0a4076"}}