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Sep 2, 2019 at 19:27
Golang's package manager has a rather elegant shared checksum database (a merkle tree), making it easy to trust mirrors:
Module Mirror and Checksum Database Launched - The Go Programming Language
The Go module mirror and checksum database provide faster, verified downloads of your Go dependencies.

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Feb 13, 2022 at 08:32
What's your favourite file checksum when you don't need cryptographic strength? md5sum is convenient (it's installed on most systems), but it was originally intended to be secure. I just want a fast content check. (Or is sha256sum sufficiently optimised that it doesn't matter?)