↳ In-reply-to » Could someone knowledgable reply with the steps a grandpa will take to calculate the hash of a twtxt from the CLI, using out-of-the-box tools? I swear I read about it somewhere, but can't find it.

It would appear that the blake2b 256bit digest algorithm is no longer supported by the openssl tool, however blake2s256 is; I’m not sure why 🤔

$ echo -n "https://twtxt.net/user/prologic/twtxt.txt\n2020-07-18T12:39:52Z\nHello World! 😊" | openssl dgst -blake2s256 -binary | base32 | tr -d '=' | tr 'A-Z' 'a-z' | tail -c 7
zq4fgq

Obviously produce the wrong hash, which should be o6dsrga as indicated by the yarnc hash utility:

$ yarnc hash -u https://twtxt.net/user/prologic/twtxt.txt -t 2020-07-18T12:39:52Z "Hello World! 😊"
o6dsrga

But at least the shell pipeline is “correct”.