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  "submitter": "7fff-zip",
  "history": [],
  "commentary": "From the K3 family:\r\ny^2 - (Lx+B)y = x(x+D)(x+E),\r\nwhere\r\nB = pq(L+p+q) - pE - qD,\r\nL = 446667T^2 + 471466T + 239031,\r\np = 318552T^2 + 368554T - 72570,\r\nq = 733413T^2 - 45082T - 14960,\r\nD = 5(7174492962T^4 - 7114589515T^3 - 22069002960T^2 + 3909144679T - 205134150),\r\nE = 882769396002T^4 + 811447034567T^3 - 1174040743T^2 - 32493137198T - 2386325360;\r\n\r\napply the two-neighbor construction with v=[0,0,−1,2,0,−1,−1,1,0,−1,0,0,0,1,0,0,0] in the class-1 section basis; the new fiber class is (3,2,−v). Set u=(−109758864t+3649521776)/(373496649t+267426299), then specialize at t=32359/40226, equivalently u=1685340892720/268746686689.",
  "created_at": "2026-09-11 19:52:55",
  "updated_at": "2026-09-11 19:52:55"
}