Cisco rarely published MD5s for older images. You can compute it on the switch: verify /md5 flash:filename.bin outputs hash; compare to a known good image from another switch.
It is illegal to distribute without a valid Cisco service contract. You will find this file on random FTP servers and Reddit threads, but those copies may contain malware (though rare for IOS binaries) or missing digital signatures. C2960-lanbasek9-mz.122-44.se6.bin