Alin Tomescu

First of all, is this a PR for [aggregate signatures or multisignatures](https://docs.google.com/presentation/d/1G4XGqrBLwqMyDQce_xpPQUEMOK4lFrneuvGYU3MVDsI/edit#slide=id.g1246936523c_0_101)?

What a great discussion! Regarding the proof of ownership during account creation (i.e., a proof of knowledge of the secret key associated with the public key hashed in the auth_key),...

Hm, I don't have the problem: I tried specifying a lot of tags with autocomplete, and the prompt remained. (Assuming by "prompt" you mean the "Please enter tag(s) for 'APY20'...

Might this have something to do with all those "\b" characters that you pass to pdfgrep? Those are "backspace" characters so they might delete output. I'm not sure how they...

For example, comment out line 614: ``` matches = subprocess.check_output("pdfgrep '%s' %s" % (tag_extended_regex, ck_to_pdf(ck_bib_dir, citation_key)), shell=True).decode() ``` If that works, then uncomment and try removing `shell=True`.

Alex, I changed how `pdfgrep` is called in https://github.com/alinush/ck/commit/3dc8b7746be26ccd0d55d4ac2ac8d6446346f7c3. Maybe this fixes your issue? Can you check?

Can you submit a pull request?

+1 on this as well! I was surprised they were not defined in the introduction.

I'm running into the same documentation issue. Will this be merged?

I'm running into the same performance issue due to the lack of this functionality. Will this be merged?