{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:F3F2UWWRKNQIH2CWX2H6EWYRBS","short_pith_number":"pith:F3F2UWWR","canonical_record":{"source":{"id":"1011.2672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-11T14:50:31Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"5521243c1cba3b5fd34d2627a90bd933408c1bf04ed214f0e7ddc1431a86f5c8","abstract_canon_sha256":"7a7764fe106690c6f7300c73773f1d8371c8305e2ae6d2990b01209903e88ab7"},"schema_version":"1.0"},"canonical_sha256":"2ecbaa5ad1536083e856be8fe25b110cbf70d5f888cac3f6cf84b0227ccc5588","source":{"kind":"arxiv","id":"1011.2672","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2672","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2672v2","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2672","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"pith_short_12","alias_value":"F3F2UWWRKNQI","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"F3F2UWWRKNQIH2CW","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"F3F2UWWR","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:F3F2UWWRKNQIH2CWX2H6EWYRBS","target":"record","payload":{"canonical_record":{"source":{"id":"1011.2672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-11T14:50:31Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"5521243c1cba3b5fd34d2627a90bd933408c1bf04ed214f0e7ddc1431a86f5c8","abstract_canon_sha256":"7a7764fe106690c6f7300c73773f1d8371c8305e2ae6d2990b01209903e88ab7"},"schema_version":"1.0"},"canonical_sha256":"2ecbaa5ad1536083e856be8fe25b110cbf70d5f888cac3f6cf84b0227ccc5588","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:07.198942Z","signature_b64":"xXx8odgvrkxGUzicpIt0Os400P42bVUKjnujuDhF8QlhonvPqlFilKTvKEQdytFZita7TbxyqiWAviyDai5KBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ecbaa5ad1536083e856be8fe25b110cbf70d5f888cac3f6cf84b0227ccc5588","last_reissued_at":"2026-05-18T04:03:07.197973Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:07.197973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.2672","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":"2026-05-18T04:03:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QRDJQOWQspGUIr9J27Dt3vpStz+7g2Ha0t+x1eRHphYKKsJa283zYkLBC2AjwK+DaI5TG8P1JqYKhzOCfsq2Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T16:13:24.760542Z"},"content_sha256":"468f6de51354861a1cb03c428d1ee6de4b2ba4e5197b529aab5f7d81b5f745d0","schema_version":"1.0","event_id":"sha256:468f6de51354861a1cb03c428d1ee6de4b2ba4e5197b529aab5f7d81b5f745d0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:F3F2UWWRKNQIH2CWX2H6EWYRBS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of the Ultrahigh-Energy Cosmic Rays and their Spectral Break","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"A. De Rujula, Arnon Dar, Shlomo Dado","submitted_at":"2010-11-11T14:50:31Z","abstract_excerpt":"The energy spectrum, composition and arrival directions of ultrahigh energy cosmic rays (UHECRs) with energy above the cosmic ray ankle, measured by the Pierre Auger Observatory, are inconsistent if their origin is assumed to be extragalactic. Their observed properties, however, are those expected from UHECRs accelerated by the highly relativistic jets emitted in Galactic gamma ray bursts, most of which are beamed away from Earth. If this alternative interpretation is correct, the observed break in the energy spectrum of UHECRs around 50 EeV is not the Greisen-Zatsepin-Kuzmin cutoff but the en"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2672","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":"2026-05-18T04:03:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uNBiMt2CSViLL/R+8Kzm2Eu5zj5Gv/5zD+wDdQmORge/jwyrAUgAMwmNveA2V7WMi/US3JCeMeg8SsXWsCDYDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T16:13:24.761157Z"},"content_sha256":"97edca7a883ebeb2141f41b9246777255b74ee33f53a51014de1621577f2fd02","schema_version":"1.0","event_id":"sha256:97edca7a883ebeb2141f41b9246777255b74ee33f53a51014de1621577f2fd02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/bundle.json","state_url":"https://pith.science/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/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":"2026-05-30T16:13:24Z","links":{"resolver":"https://pith.science/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS","bundle":"https://pith.science/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/bundle.json","state":"https://pith.science/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F3F2UWWRKNQIH2CWX2H6EWYRBS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:F3F2UWWRKNQIH2CWX2H6EWYRBS","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":"7a7764fe106690c6f7300c73773f1d8371c8305e2ae6d2990b01209903e88ab7","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-11T14:50:31Z","title_canon_sha256":"5521243c1cba3b5fd34d2627a90bd933408c1bf04ed214f0e7ddc1431a86f5c8"},"schema_version":"1.0","source":{"id":"1011.2672","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2672","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2672v2","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2672","created_at":"2026-05-18T04:03:07Z"},{"alias_kind":"pith_short_12","alias_value":"F3F2UWWRKNQI","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"F3F2UWWRKNQIH2CW","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"F3F2UWWR","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:97edca7a883ebeb2141f41b9246777255b74ee33f53a51014de1621577f2fd02","target":"graph","created_at":"2026-05-18T04:03:07Z","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":"The energy spectrum, composition and arrival directions of ultrahigh energy cosmic rays (UHECRs) with energy above the cosmic ray ankle, measured by the Pierre Auger Observatory, are inconsistent if their origin is assumed to be extragalactic. Their observed properties, however, are those expected from UHECRs accelerated by the highly relativistic jets emitted in Galactic gamma ray bursts, most of which are beamed away from Earth. If this alternative interpretation is correct, the observed break in the energy spectrum of UHECRs around 50 EeV is not the Greisen-Zatsepin-Kuzmin cutoff but the en","authors_text":"A. De Rujula, Arnon Dar, Shlomo Dado","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-11T14:50:31Z","title":"Origin of the Ultrahigh-Energy Cosmic Rays and their Spectral Break"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2672","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":"sha256:468f6de51354861a1cb03c428d1ee6de4b2ba4e5197b529aab5f7d81b5f745d0","target":"record","created_at":"2026-05-18T04:03:07Z","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":"7a7764fe106690c6f7300c73773f1d8371c8305e2ae6d2990b01209903e88ab7","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-11-11T14:50:31Z","title_canon_sha256":"5521243c1cba3b5fd34d2627a90bd933408c1bf04ed214f0e7ddc1431a86f5c8"},"schema_version":"1.0","source":{"id":"1011.2672","kind":"arxiv","version":2}},"canonical_sha256":"2ecbaa5ad1536083e856be8fe25b110cbf70d5f888cac3f6cf84b0227ccc5588","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ecbaa5ad1536083e856be8fe25b110cbf70d5f888cac3f6cf84b0227ccc5588","first_computed_at":"2026-05-18T04:03:07.197973Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:07.197973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xXx8odgvrkxGUzicpIt0Os400P42bVUKjnujuDhF8QlhonvPqlFilKTvKEQdytFZita7TbxyqiWAviyDai5KBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:07.198942Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2672","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:468f6de51354861a1cb03c428d1ee6de4b2ba4e5197b529aab5f7d81b5f745d0","sha256:97edca7a883ebeb2141f41b9246777255b74ee33f53a51014de1621577f2fd02"],"state_sha256":"f61c0264c79f0e8b9002e1abf513146c84822057ffa5e863822c9b4e277913a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NIHVEYdd79nMGXoAO4cVPodCDbxSkAhtj75OaVWv/tFE8lwjOGozLN9c9xcz4WRs/7F7An7TDQFzQbHIss3tAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T16:13:24.763758Z","bundle_sha256":"d52057dfcbff6aebea55b5884ab98103bf79cf9660e47581178453a7ef9cfcf1"}}