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We find that while all 260 bursts are only modestly clustered (Q-value = $1.8 \\times 10^{-2}$), the 202 bursts in this sample for which the statistical error in their locations is $<9^\\circ$ are significantly clustered on an angular scale $\\approx 5^\\circ$ (Q-value = $2.5 \\times 10^{-4}$, taking into acoount having chosen the cu"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/9307015","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1993-07-08T18:25:50Z","cross_cats_sorted":[],"title_canon_sha256":"8b0952ee626fbab38e716a986beb3ab832a5ad0414a6f391b306d3fc780f9baa","abstract_canon_sha256":"b90e88d6a07441cddbbbc102d07ee77cfc4377abcaf56b3e6f86607b765f374d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:44.313235Z","signature_b64":"lZoRLcM6riw3YKqynk6UHpEvUKJvp5/izAn295QKPnwVLrqQmPjRmZ2njvxmAjW+DcsS3aB0+lCFhigk0VleAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa970d5a71237f13f2de3cf5ff1ba62b84b6a26b19a18548e8ce86edf71142ce","last_reissued_at":"2026-05-18T01:12:44.312881Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:44.312881Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evidence That Gamma-Ray Burst Sources Repeat","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"D.Q. 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