d4b4e93bbbe1ebcd16a6708c47eb20e2 *sci2001-03-08d2t01.shn d0f53af31626a2e43326ed681bbf2c98 *sci2001-03-08d2t02.shn c63314558cc75a2cf12060ad96629ba7 *sci2001-03-08d2t03.shn 71cf6592e770693811f417ed33d6e34d *sci2001-03-08d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned