anyone building around cryptographically secured identity?

I remember a few ideas around this back in the day but it’s been awhile since I’ve heard anything

need to add nuance to the question

are you talking about legally enabled identity or trust minimized identity? https://youtu.be/MGYOWqCMLKg

onchain app dev, web3 data analyst, and regen. I help my clients build, launch, and improve web3 products

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appreciate the clarification! Really looking to learn about efforts in either arena