It could be part of a UUID version 3 or 5 (which use MD5 or SHA-1), or a truncated SHA-1.

The exact same input will always produce the exact same output string.

: A digital landscape of cold data and glowing servers.

He had been tracing the "Silent Signature" for three years. It appeared in the margins of high-level government leaks, encrypted within the metadata of satellite photos, and once, bizarrely, etched into the source code of a children’s hospital database. It never stole anything. It never corrupted data. It just… watched.

Are you trying to it or find the original file it belongs to?

When downloading massive software packages or operating systems, developers provide a checksum hash. Once the download finishes, your computer calculates the hash of your local file. If your local hash matches the developer's published hash, your download is complete and free from corruption or malicious tampering. 3. Cache Busting and Web Assets