I could. Is your filesize 11? Maybe your editor added a newline character.
C:\>ls -l blah2.txt
-rwx------+ 1 shrughes ???????? 11 May 18 06:39 blah2.txt
C:\>cat blah2.txt
1 collision
C:\>openssl dgst -sha1 blah2.txt
SHA1(../blah2.txt)= 260bad88a9bf718be7ac56ab10db83682e043f5e