Ever since I read Pieter Pauwels' seminal paper on applying zero knowledge proofs to KYC, this is a use case I've been interested in. The city of Buenos Aires is using zkSync's QuarkID to allow citizens to securely tokenize their government documents and use them to verify without (a) disclosing PII to the verifying party; or (b) calling back to a central government server to check. It's all self-hosted as an NFT in a wallet, with ZK proofs used to verify claims like "age > 18 years old" -- just scan a QR code and off you go. The "wallet" analogy used since the early days referred to a place to hold coins, but a wallet is also a place to hold your ID. And it's all based on the W3C's Decentralized ID (DID) standard -- an echo of the rise of interoperable Web protocols back in the early days of the Web. https://lnkd.in/eyM9KUGG Number go up is exciting, but applications go up is more exciting. https://lnkd.in/egViyhKk Pinar Emirdag Daniel LIEBAU Pieter P. Zo? Aikman Josh Peschko, CFA Adam Ringwood Paul Famighetti Jemma Xu Beatrice O'Carroll Gary Weinstein Paola Origel Tania Reif Anne Bracegirdle #digitalassets #digitalidentity #cryptocurrency #wicked
Beatrice O'Carroll
4 个月
This is extremely interesting & and big improvement from my experience in January - I used BTC to buy my metro card, however I had to show my passport at the tourist kiosk to get the metrocard. No info obfuscated from what I could tell… so sort of defeated the purpose but still a step forward ?? thanks for posting, Kyle Downey ??
Tania Reif
4 个月
go Argentina!
Justin McMahan
4 个月
Very informative, thx Kyle Downey!
Engineering, Product & Projects
4 个月Are they using soulbound NFTs?