Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Achim Domma @achim@social.saarland

1/10/2026, 8:29:39 PM

Public

I try to implement an #activitypub server in #Rust, have problems talking to #mastodon and would appreciate some help.

I try to send a follow action to Mastodon. The request is - as far as I can tell - signed according to https://docs.joinmastodon.org/spec/security/

The "keyId" of the signatrue is "https://pub.saar.social/user/achim/key". Mastodon calls this url as expected and my server returns: [...]

Security - Mastodon documentation

Public key cryptography and supported signature schemes over HTTP and JSON-LD.

docs.joinmastodon.org

If you have a fediverse account, you can quote this note from your own instance. Search https://social.saarland/users/achim/statuses/115872692902171766 on your instance and quote it. (Note that quoting is not supported in Mastodon.)