Simple file verification

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This article may require cleanup to meet Wikipedia's quality standards. The specific problem is: Needs refocussing on sfv extension rather than overlapping with File verification. Relevant discussion may be found on Talk:File verification. Please help improve this article if you can. (November 2022) (Learn how and when to remove this message)

Simple file verification (SFV) is a file format for storing CRC32 checksums of files to verify the integrity of files. SFV is used to verify that a file has not been corrupted, but it does not otherwise verify the file's authenticity. The .sfv file extension is usually used for SFV files.^[1]