f292ad24ff14609151781fffcde9e4c9  -
 -0
94c7aa521e67995c3003053fd40de0f0  -
 -1
d94eb7dbd0d17be615a98e98c4ea4c01  -
 -2
7f2656bbf75a3c804f11c980b5516963  -
 -3

# With this shell script on test.txt (37 mb)

#!/bin/bash

chunk=10
for number in {0..3}
do
  start=$(($number*$chunk))

  dd if="$1" ibs=1000000 skip=$start count=$chunk status=noxfer | md5sum
  echo " -$number"
done  > output.txt