Screenshot Essays

A subtle but significant way that tech companies will continue to undermine user attempts to control their data, without stronger regulatory protections 

cc @eulerlagrange.eth @evin

building disco.xyz 🪩 chronically onchain at @boysclub

Working on building zkTLS infra/products. A ruthless empiricist and meme connoisseur.

http://opacity.network

Identity mixologist

Co-founder at @icebreaker

icbk.me/web3pm.fc

💯

In the EU you can *kind of* get a clean handoff via email whereas in CA/VA you cannot 

You’re right tho 

“Computer legible” != verifiable

Opacity

For my company /opacity we make the assumption cooperation from anyone but the user is a waste of time.

It’s def an engineering approach, but we have zkTLS with the collusion issue solved.

I really don’t think it’s worth trying to get companies to do stuff against their economic incentives

Even with zkTLS you are limited by what Twitter exposes in the app itself, which is only a data subset

One idea- could you zkTLS the data download itself, assuming it happens live from the app?

Yes you could, but if the file is large it would risk timing out the request before it’s done.

To fix that we’d have to sacrifice redaction support of the response. If it contains sensitive data the user may not want to share it with anyone.

You have to share the whole thing to be verifiable

We live in a world with a poverty of verifiability. As an entrepreneur I have to deal with the constraints of the world as it is.

I really don’t think the twitter follower issue is a limiting factor. Nook specifically asked for the opposite.

I still don’t get the twitter follower concern.

It’s a lot cleaner if everyone exports who they follow. You need the new user to show up anyway for the influencer to get the follow.

You can get a lot more data this way like syncing DMs as well, and tweets

As I explained yes you can.

But that entire zip file is what will be notarized.

Selective disclosure of the contents won’t be possible without a zkVM. And you can’t prove such a ZKP on a user’s device.

So you can either share everything or nothing

Why not just generate proofs individually for what you want?

The way it works is you make the request and then a day later, twitter emails you saying it's ready with a link. 

you go to the link and download the zip file. 

the question is whether opacity could zktls the download