These are the md5 of files inside the compressed file you would dowload. I.e.:
wget https://www.cs.toronto.edu/~kriz/cifar-10-python.tar.gz
tar -xf cifar-10-python.tar.gz
ls cifar-10-batches-py/
# batches.meta data_batch_2 data_batch_4 readme.html
# data_batch_1 data_batch_3 data_batch_5 test_batch
md5sum cifar-10-batches-py/data_batch_1
# output: c99cafc152244af753f735de768cd75f cifar-10-batches-py/data_batch_1
# and so on for all other files listed above