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rotki
A portfolio tracking, analytics, accounting and management application that protects your privacy
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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Cool! Now you can prove to anyone that you have access to private data in ANY server which supports TLS! (Virtually all do). The server didn't have to change anything, it was completely transparent to them. And you didn't have to grant the notary access to the data. That's pretty huge. This technique has, to my surprise, existed for quite some time: TLSNotary and more recently DECO which has been acquired by... Chainlink. DECO looks to be the holy grail, it takes it further by mixing in ZK proofs so that you can selectively reveal certain parts of the server response. I'm not informed enough to say for certain, but I think the 2PC could be expanded to (N)PC which would give you a 1 of N trust model! Alternatively you could just re-execute the same query multiple times with different notaries and have them all agree, still 1 of N.