{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:H6TQLS3XJ5MQK3BUD26BX4UXB4","short_pith_number":"pith:H6TQLS3X","canonical_record":{"source":{"id":"astro-ph/0106501","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-27T15:27:20Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"1528494df9ffbc244737bcc43633ce03207cb98043c5258533671c246ee08a87","abstract_canon_sha256":"9692a3dd92d356a8cd4ca38cdd5c72e8c4e94adeae2e8dc2d988f7e5297dcbd3"},"schema_version":"1.0"},"canonical_sha256":"3fa705cb774f59056c341ebc1bf2970f05d5cc4c4da021655b18583cab6db827","source":{"kind":"arxiv","id":"astro-ph/0106501","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106501","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106501v2","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106501","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"H6TQLS3XJ5MQ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"H6TQLS3XJ5MQK3BU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"H6TQLS3X","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:H6TQLS3XJ5MQK3BUD26BX4UXB4","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0106501","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-27T15:27:20Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"1528494df9ffbc244737bcc43633ce03207cb98043c5258533671c246ee08a87","abstract_canon_sha256":"9692a3dd92d356a8cd4ca38cdd5c72e8c4e94adeae2e8dc2d988f7e5297dcbd3"},"schema_version":"1.0"},"canonical_sha256":"3fa705cb774f59056c341ebc1bf2970f05d5cc4c4da021655b18583cab6db827","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:36.204441Z","signature_b64":"y0T29rUYG6dcJpjyDJvEd1tCZyfxSNnJdgX2divwOyxYWK3WgmSLm3AkoBpfDXpVxQDPVcao9KXnZH6SPiixCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3fa705cb774f59056c341ebc1bf2970f05d5cc4c4da021655b18583cab6db827","last_reissued_at":"2026-05-18T02:40:36.203914Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:36.203914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0106501","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WaSASxApkM8ZtAO6Sr7U1qT2+jlO+ihZs/eA4SSrdl5z8wPTXWzCtXcvupJ2Bc4I42dCrDjvPo9TJvjzwGCyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:46:54.054476Z"},"content_sha256":"d4f97c98ab8d6f391a8309772841d1ed80f1e921b529fc0218cfd13fe20130e4","schema_version":"1.0","event_id":"sha256:d4f97c98ab8d6f391a8309772841d1ed80f1e921b529fc0218cfd13fe20130e4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:H6TQLS3XJ5MQK3BUD26BX4UXB4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Mysterious Ultrahigh Energy Cosmic Ray Clustering","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph","authors_text":"Diego F. Torres, Gustavo E. Romero, Haim Goldberg, John Swain, Luis A. Anchordoqui, Stephen Reucroft","submitted_at":"2001-06-27T15:27:20Z","abstract_excerpt":"We examine the correlation between compact radio quasars (redshifts in the range $z = 0.3 - 2.2$) and the arrival direction of ultrahigh energy cosmic rays forming clusters. Our Monte Carlo simulation reveals a statistically significant correlation on the AGASA sample: the chance probability of this effect being less than 1%. The implications of this result on the origin of ultrahigh energy cosmic rays are discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106501","kind":"arxiv","version":2},"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":"2026-05-18T02:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6zBA9WrkT3RQZaPqd02aAt+0XN3eQetszBiOMdbDA51Op3/LUUR1mBAP75+7885lmIQ7ZhVdIiDMheMUW8yjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:46:54.055233Z"},"content_sha256":"4f7425986de3e34992a304f074e3126b92125f0ed7aac589d10ecadd5f6adcb7","schema_version":"1.0","event_id":"sha256:4f7425986de3e34992a304f074e3126b92125f0ed7aac589d10ecadd5f6adcb7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/bundle.json","state_url":"https://pith.science/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/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":"2026-05-25T22:46:54Z","links":{"resolver":"https://pith.science/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4","bundle":"https://pith.science/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/bundle.json","state":"https://pith.science/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H6TQLS3XJ5MQK3BUD26BX4UXB4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:H6TQLS3XJ5MQK3BUD26BX4UXB4","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":"9692a3dd92d356a8cd4ca38cdd5c72e8c4e94adeae2e8dc2d988f7e5297dcbd3","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-27T15:27:20Z","title_canon_sha256":"1528494df9ffbc244737bcc43633ce03207cb98043c5258533671c246ee08a87"},"schema_version":"1.0","source":{"id":"astro-ph/0106501","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106501","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106501v2","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106501","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"H6TQLS3XJ5MQ","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"H6TQLS3XJ5MQK3BU","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"H6TQLS3X","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:4f7425986de3e34992a304f074e3126b92125f0ed7aac589d10ecadd5f6adcb7","target":"graph","created_at":"2026-05-18T02:40:36Z","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 examine the correlation between compact radio quasars (redshifts in the range $z = 0.3 - 2.2$) and the arrival direction of ultrahigh energy cosmic rays forming clusters. Our Monte Carlo simulation reveals a statistically significant correlation on the AGASA sample: the chance probability of this effect being less than 1%. The implications of this result on the origin of ultrahigh energy cosmic rays are discussed.","authors_text":"Diego F. Torres, Gustavo E. Romero, Haim Goldberg, John Swain, Luis A. Anchordoqui, Stephen Reucroft","cross_cats":["hep-ph"],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-06-27T15:27:20Z","title":"The Mysterious Ultrahigh Energy Cosmic Ray Clustering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106501","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:d4f97c98ab8d6f391a8309772841d1ed80f1e921b529fc0218cfd13fe20130e4","target":"record","created_at":"2026-05-18T02:40:36Z","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":"9692a3dd92d356a8cd4ca38cdd5c72e8c4e94adeae2e8dc2d988f7e5297dcbd3","cross_cats_sorted":["hep-ph"],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-27T15:27:20Z","title_canon_sha256":"1528494df9ffbc244737bcc43633ce03207cb98043c5258533671c246ee08a87"},"schema_version":"1.0","source":{"id":"astro-ph/0106501","kind":"arxiv","version":2}},"canonical_sha256":"3fa705cb774f59056c341ebc1bf2970f05d5cc4c4da021655b18583cab6db827","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3fa705cb774f59056c341ebc1bf2970f05d5cc4c4da021655b18583cab6db827","first_computed_at":"2026-05-18T02:40:36.203914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:40:36.203914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y0T29rUYG6dcJpjyDJvEd1tCZyfxSNnJdgX2divwOyxYWK3WgmSLm3AkoBpfDXpVxQDPVcao9KXnZH6SPiixCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:40:36.204441Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0106501","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4f97c98ab8d6f391a8309772841d1ed80f1e921b529fc0218cfd13fe20130e4","sha256:4f7425986de3e34992a304f074e3126b92125f0ed7aac589d10ecadd5f6adcb7"],"state_sha256":"547a51431dd86d290a91528b2374d71bbfad14eaeafa8f33defdcbecc058adfa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9eVUeXb52VIXwRXuR13lFFsnvhfvXD1G7v69hNdiuIJwm4B787tG4TZY+VHtmMW5GiMlbM63w05GAHAVoW3fDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:46:54.059789Z","bundle_sha256":"b7951d143630290edbfae2c8429273db8b9201f0ebdeace3c22e3b5bbdde052b"}}