@ireneista@adhd.irenes.space @vkc@linuxmom.net @ShadSterling@mastodon.social afaik yes, but i can't verify they work because i can't find any dots on a print made with the one inkjet printer i own. a surprising resurgence in the research happened after someone realized they could use this to catch people selling fake pokemon cards.

@eri @vkc @ShadSterling huhhhhh. we should get ourselves up-to-date on it, then. thanks for the heads up!

@vkc Trying to find sources on what I remember from the communist period in Poland – all private typewriters had to be registered with the state security service, leaving a sample of the typewriter's output, to enable identification in cases of "misuse".

@evan @pluralistic @vkc Why reverse engineering and hacking firmware should be legal, and even constitutionally protected. It's a crazy tech panopticon we live in, and legislation is blind as a bat to it.

@lgsp @vkc

Does anybody have informations about possible tracking of each banknote delivered by an ATM ?

@Gergovie @vkc

I never went deep, but banknotes have serial numbers, I think. Still much less tracking than any credit/debit card.

@lgsp @vkc

Sure. You can't track each transaction, but banks could record who take the note, and who bring it back to a bank.

And then spot laundering agents.

@vkc
can these dots be read out when printed on yellow paper?

@socketwench @vkc Hmmm if it talks HP GL or ps that should be no problem from the Linux driver perspective, and ps can be interpreted pretty directly (mostly...).
I will dig out my Lego Control Centre. I also need to get some 9v Lego cables to cut apart.... A spare ESP or Arduino should be kicking around. H-bridges I will have to buy... (the plotter will suck, Lego is not built for precision movement).

Now I "just" need to find the time for it.

@vkc there are scripts on github to render tracking dots useless