checksumming

verb (present participle)
UK /ˈtʃek.sʌm.ɪŋ/
US /ˈtʃek.sʌm.ɪŋ/

Checking if a file or message got changed by comparing a special number made from it.

The program is checksumming the downloaded file to make sure nothing was corrupted.


OTHER MEANINGS

2. Computing a checksum value for a block of data so it can be compared later.

Checksumming each packet helps the receiver spot transmission errors.

3. Using checksums as a routine step in data storage or backup processes.

Their backup script includes checksumming to catch silent disk failures.

4. The act or process of generating and comparing checksums.

Checksumming is a quick way to detect accidental file changes.