Look, we've always associated blockchain with full access for everyone. If you have a wallet, you can participate anywhere. No one asks who you are, how old you are, or where you come from. But as soon as the crypt began to collide with the real world, uncomfortable questions arose: are you sure you're an adult? Aren't you from a sanctioned country? Are you even human?
And what's the result? Everyone followed the standard path: KYC, passport scans, fragile backends, and tons of user data that no one wants to store, but everyone has to for some reason. As a result, every Web3 project that just needs to check "if this person can come here" is forced to reinvent a bicycle with square wheels.
Now Solana offers a smarter solution — Solana Auth Service (SAS). This is an open protocol that allows you to create "stamps" — confirmed facts about you, linked to your wallet. It's like in a passport, only on the blockchain and without disclosing personal data.
How it works: verified organizations (KYC providers, DAOs, companies, and even states) issue statements, for example: "over 18 years old," "lives in the EU," "passed verification in such and such a DAO." These statements are signed, attached to the wallet, and then any dApps can quickly verify them without unnecessary questions.
At the same time, there is no personal information in the blockchain. Only signature, wallet, and approval. And all this — without servers, without user logic, without data collection. Just an SDK request, and you're done.
SAS gives you a bunch of advantages:
confirmed once, and you use it everywhere.;
you can build a reputation on this, access to voting, even lending;
stamps can appear not only from KYC, but also from the blockchain itself — for example, for activity in the DAO or participation in projects.;
this whole system is open, meaning any project can start using it tomorrow.
Civic, Solid, RNS.IDs are already being implemented by SAS, and each in its own way: someone to verify users, someone to issue statuses, someone to build their own proof system.
And here's the thing: Solana, with its speed and scalability, is already the center of gravity for DeFi, DePIN, and Web3 games. And if you want to reach billions of new users, you will have to take into account the requirements of the real world — but without selling your soul to centralized systems. SAS is just about that.
This is the question at the end:
If your wallet could verify the necessary data on its own without revealing your identity, would you use it?
