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This paper presents a formula for computing the diameter of $G_1\\otimes G_2$ by means of the diameters and primitive exponents of factor graphs."},"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":"1204.4014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.CO","submitted_at":"2012-04-18T08:33:41Z","cross_cats_sorted":[],"title_canon_sha256":"bd49554599bd3b8be8133337888f77ba1e3e70dd520633a44596b14ddd9fa30c","abstract_canon_sha256":"4cb03ee5455acbaf3f798165803b474f9fd379363204594d6c6591ba17d1370a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:57:37.983248Z","signature_b64":"AmAEbZooy6/lQeAgvNmx5haGklLGiQM6rzVnZQQylp2W12wgpjZsiyNtVwEXBSiffgsqrScm1FWciKXLZA/fAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19f3be6c98fb2b4fd6af237e16c3e025653702c5e5de20d0a999979fb4c3ed7c","last_reissued_at":"2026-05-18T03:57:37.982624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:57:37.982624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the diameter of the Kronecker product graph","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CO","authors_text":"Fu-Tao Hu, Jun-Ming Xu","submitted_at":"2012-04-18T08:33:41Z","abstract_excerpt":"Let $G_1$ and $G_2$ be two undirected nontrivial graphs. 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