// sha-256 · sha-512 · blake3 · hmac-sha256
Hashes text exactly as the API does — the same bytes in give the same digest anywhere, which is the whole point of a hash.
The file is streamed to the server and hashed there — nothing is stored, and the digest is the one to compare against a published checksum.
Recomputes the digest and compares it with the one you expect, in constant time. Paste a checksum from a download page and check text or a file against it.