{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:3SZLXAKBQWALTCPFSV3RHUOIRM","short_pith_number":"pith:3SZLXAKB","canonical_record":{"source":{"id":"astro-ph/0507657","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-28T02:37:05Z","cross_cats_sorted":[],"title_canon_sha256":"d9e574f02db1b57d8c0cbe160107f5d6ed19b476b11596d0c5e199b3f457d9ec","abstract_canon_sha256":"ec29ca55c5722d6ad39e8e81d9c8b85532bb3ded9948f1eb435cf58e25b1b874"},"schema_version":"1.0"},"canonical_sha256":"dcb2bb81418580b989e5957713d1c88b3926036f8e48db8db25ad4d5b54d507e","source":{"kind":"arxiv","id":"astro-ph/0507657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0507657","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507657v1","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507657","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_12","alias_value":"3SZLXAKBQWAL","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_16","alias_value":"3SZLXAKBQWALTCPF","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_8","alias_value":"3SZLXAKB","created_at":"2026-07-04T17:14:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:3SZLXAKBQWALTCPFSV3RHUOIRM","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0507657","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-28T02:37:05Z","cross_cats_sorted":[],"title_canon_sha256":"d9e574f02db1b57d8c0cbe160107f5d6ed19b476b11596d0c5e199b3f457d9ec","abstract_canon_sha256":"ec29ca55c5722d6ad39e8e81d9c8b85532bb3ded9948f1eb435cf58e25b1b874"},"schema_version":"1.0"},"canonical_sha256":"dcb2bb81418580b989e5957713d1c88b3926036f8e48db8db25ad4d5b54d507e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:14:56.678291Z","signature_b64":"Yc09rgthDCceCz/gKId8xBUNNYT5jBwEaFaOkJLE5/0Tb1VtyXE1Q9ZuU7szed8CWpy4rGdcxGCAD5iPaMbKCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcb2bb81418580b989e5957713d1c88b3926036f8e48db8db25ad4d5b54d507e","last_reissued_at":"2026-07-04T17:14:56.677870Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:14:56.677870Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0507657","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":"2026-07-04T17:14:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BjMnGmbyNpNmN5pKtjfkRkj1T5GHjZpx9XMxZQDcHp6aJyQfusvigMP3amgVCz1sh6RsSxXmD2nNkmOjlzyLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:08:23.722758Z"},"content_sha256":"be60a10769121f2cd9ae7eb9b12f23335954d80bf5226e66a8034ff716d8f966","schema_version":"1.0","event_id":"sha256:be60a10769121f2cd9ae7eb9b12f23335954d80bf5226e66a8034ff716d8f966"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:3SZLXAKBQWALTCPFSV3RHUOIRM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Foreground and Source of a Cluster of Ultra-high Energy Cosmic Rays","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andreas A. Berlind, David W. Hogg (New York University), Glennys R. Farrar","submitted_at":"2005-07-28T02:37:05Z","abstract_excerpt":"We investigate the origin of a nearly pointlike cluster of 5 ultrahigh energy cosmic rays at RA ~169.2deg and dec ~56.8deg, using Sloan Digital Sky Survey and other data. No particular source candidates are found near the estimated source direction, but the direction is exceptional in having a likely merging pair of galaxy clusters at 140/h Mpc, with an unusually low foreground density. Large scale shocks or another product of the merging galaxy clusters may accelerate the UHECRs, or the merging galaxy clusters may be coincidental and the UHECRs may be accelerated in a rare event of an unexcep"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507657","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0507657/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:14:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pMOAlS3eQ2qQpOpqAjzyuh9IPcBBz3gjPk0apLtnvNHKGWGdHA5nskldG8sNB9ySUU9Kk64/Cg2+47xXFUKaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:08:23.723257Z"},"content_sha256":"a3beb32e7e5ea96076c56def62c320c4c4d7ea3b31e7d4a95ddceb520695fdb6","schema_version":"1.0","event_id":"sha256:a3beb32e7e5ea96076c56def62c320c4c4d7ea3b31e7d4a95ddceb520695fdb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/bundle.json","state_url":"https://pith.science/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/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":"2026-08-06T18:08:23Z","links":{"resolver":"https://pith.science/pith/3SZLXAKBQWALTCPFSV3RHUOIRM","bundle":"https://pith.science/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/bundle.json","state":"https://pith.science/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3SZLXAKBQWALTCPFSV3RHUOIRM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:3SZLXAKBQWALTCPFSV3RHUOIRM","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":"ec29ca55c5722d6ad39e8e81d9c8b85532bb3ded9948f1eb435cf58e25b1b874","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-28T02:37:05Z","title_canon_sha256":"d9e574f02db1b57d8c0cbe160107f5d6ed19b476b11596d0c5e199b3f457d9ec"},"schema_version":"1.0","source":{"id":"astro-ph/0507657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0507657","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507657v1","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507657","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_12","alias_value":"3SZLXAKBQWAL","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_16","alias_value":"3SZLXAKBQWALTCPF","created_at":"2026-07-04T17:14:56Z"},{"alias_kind":"pith_short_8","alias_value":"3SZLXAKB","created_at":"2026-07-04T17:14:56Z"}],"graph_snapshots":[{"event_id":"sha256:a3beb32e7e5ea96076c56def62c320c4c4d7ea3b31e7d4a95ddceb520695fdb6","target":"graph","created_at":"2026-07-04T17:14:56Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/astro-ph/0507657/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the origin of a nearly pointlike cluster of 5 ultrahigh energy cosmic rays at RA ~169.2deg and dec ~56.8deg, using Sloan Digital Sky Survey and other data. No particular source candidates are found near the estimated source direction, but the direction is exceptional in having a likely merging pair of galaxy clusters at 140/h Mpc, with an unusually low foreground density. Large scale shocks or another product of the merging galaxy clusters may accelerate the UHECRs, or the merging galaxy clusters may be coincidental and the UHECRs may be accelerated in a rare event of an unexcep","authors_text":"Andreas A. Berlind, David W. Hogg (New York University), Glennys R. Farrar","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-07-28T02:37:05Z","title":"Foreground and Source of a Cluster of Ultra-high Energy Cosmic Rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507657","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:be60a10769121f2cd9ae7eb9b12f23335954d80bf5226e66a8034ff716d8f966","target":"record","created_at":"2026-07-04T17:14:56Z","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":"ec29ca55c5722d6ad39e8e81d9c8b85532bb3ded9948f1eb435cf58e25b1b874","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-28T02:37:05Z","title_canon_sha256":"d9e574f02db1b57d8c0cbe160107f5d6ed19b476b11596d0c5e199b3f457d9ec"},"schema_version":"1.0","source":{"id":"astro-ph/0507657","kind":"arxiv","version":1}},"canonical_sha256":"dcb2bb81418580b989e5957713d1c88b3926036f8e48db8db25ad4d5b54d507e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcb2bb81418580b989e5957713d1c88b3926036f8e48db8db25ad4d5b54d507e","first_computed_at":"2026-07-04T17:14:56.677870Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:14:56.677870Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yc09rgthDCceCz/gKId8xBUNNYT5jBwEaFaOkJLE5/0Tb1VtyXE1Q9ZuU7szed8CWpy4rGdcxGCAD5iPaMbKCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:14:56.678291Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0507657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be60a10769121f2cd9ae7eb9b12f23335954d80bf5226e66a8034ff716d8f966","sha256:a3beb32e7e5ea96076c56def62c320c4c4d7ea3b31e7d4a95ddceb520695fdb6"],"state_sha256":"d3bbc9f8bbc10b4fc40200603407b4968736f9c780fc11b9c9b1fce83d5ac85d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wNuXIQVv8lYpC9M4b4FzR/t/LgWqpr+C6mVHZtweJGWzV6Qhjab8BjRvlc4KMwtDZL2EQYNOi9R2JbMOQMHbDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:08:23.727602Z","bundle_sha256":"a98c1fbf645a8e16b87d8ba4981456429de08e7b896033f8b0745e2d5b9c105b"}}