{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:RMR6CZQVGFX7GKV3HYH7IL4T4N","short_pith_number":"pith:RMR6CZQV","schema_version":"1.0","canonical_sha256":"8b23e16615316ff32abb3e0ff42f93e37b16dca039c984ce0c9c7031fa8a5524","source":{"kind":"arxiv","id":"1405.2624","version":1},"attestation_state":"computed","paper":{"title":"A two-fold cover of strongly regular graphs with spreads and association schemes of class five","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CO","authors_text":"Sho Suda","submitted_at":"2014-05-12T03:36:20Z","abstract_excerpt":"We consider imprimitive association schemes of class four which are two-fold covers of strongly regular graphs with spreads. It will be shown that a two-fold cover of a strongly regular graph with a spread provides a five class fission scheme of the imprimitive scheme of class four."},"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":"1405.2624","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.CO","submitted_at":"2014-05-12T03:36:20Z","cross_cats_sorted":[],"title_canon_sha256":"ec9637dae4e5b6a0712ae20d858b4890403056242596fa7c9871d7d216be47c7","abstract_canon_sha256":"b0f21f6b5aafcf907d7eb610c359dc514f5e54e90568efafa63fb8575c423c12"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:05.096718Z","signature_b64":"Tw35re5qcc/6FpO+be7SRTlpVR3D7oEl4VlgTa9KN3IEIfc+Www8E6Ii3jYjH69bYIuAWuURzzmdCESH+Y8KCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b23e16615316ff32abb3e0ff42f93e37b16dca039c984ce0c9c7031fa8a5524","last_reissued_at":"2026-05-18T02:52:05.096291Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:05.096291Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A two-fold cover of strongly regular graphs with spreads and association schemes of class five","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.CO","authors_text":"Sho Suda","submitted_at":"2014-05-12T03:36:20Z","abstract_excerpt":"We consider imprimitive association schemes of class four which are two-fold covers of strongly regular graphs with spreads. It will be shown that a two-fold cover of a strongly regular graph with a spread provides a five class fission scheme of the imprimitive scheme of class four."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.2624","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1405.2624","created_at":"2026-05-18T02:52:05.096365+00:00"},{"alias_kind":"arxiv_version","alias_value":"1405.2624v1","created_at":"2026-05-18T02:52:05.096365+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.2624","created_at":"2026-05-18T02:52:05.096365+00:00"},{"alias_kind":"pith_short_12","alias_value":"RMR6CZQVGFX7","created_at":"2026-05-18T12:28:46.137349+00:00"},{"alias_kind":"pith_short_16","alias_value":"RMR6CZQVGFX7GKV3","created_at":"2026-05-18T12:28:46.137349+00:00"},{"alias_kind":"pith_short_8","alias_value":"RMR6CZQV","created_at":"2026-05-18T12:28:46.137349+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N","json":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N.json","graph_json":"https://pith.science/api/pith-number/RMR6CZQVGFX7GKV3HYH7IL4T4N/graph.json","events_json":"https://pith.science/api/pith-number/RMR6CZQVGFX7GKV3HYH7IL4T4N/events.json","paper":"https://pith.science/paper/RMR6CZQV"},"agent_actions":{"view_html":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N","download_json":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N.json","view_paper":"https://pith.science/paper/RMR6CZQV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1405.2624&json=true","fetch_graph":"https://pith.science/api/pith-number/RMR6CZQVGFX7GKV3HYH7IL4T4N/graph.json","fetch_events":"https://pith.science/api/pith-number/RMR6CZQVGFX7GKV3HYH7IL4T4N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N/action/storage_attestation","attest_author":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N/action/author_attestation","sign_citation":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N/action/citation_signature","submit_replication":"https://pith.science/pith/RMR6CZQVGFX7GKV3HYH7IL4T4N/action/replication_record"}},"created_at":"2026-05-18T02:52:05.096365+00:00","updated_at":"2026-05-18T02:52:05.096365+00:00"}