Hi! Sorry about the delay, I'm not here very often. It's not exactly what you are describing, but Buenos Aires is pioneering a blockchain-based identity system based off of an ethereum rollup cointelegraph.com/news/buenos-... . Have you discovered any examples since you asked the question?
cointelegraph.com
Buenos Aires rolls out blockchain-based ID for 3.6M residents
Buenos Aires has announced the integration of blockchain technology and zero-knowledge cryptography for the issuance of digital identities for over 3.6 million residents.
