I woke up in the morning and saddenly a thought came to me, to be honest, I've been thinking about something for a while now... What exactly @SignOfficial trying to build - I was trying to understand this a little deeper. At first, I thought, okay... another attstation layer, nothing new in crypto. But after reading for a while, I realized that real game here is somewhere else. When we usually say "digital ID", we imagine a system - a database, where all the information is stored. But reality is completely different. No country starts from scratch. There are already many things - birth registration, NID, bank KYC, passport database... but they don't work together. Each one is a separate island. This is where Sign is thinking a little differently. They are saying that - there is no need to build everything anew. Instead, build a layer that will connect them. I mean... not replace, integrate. But here the question arises - this "connecting" thing has tried before. Why doesn't it work? They talked about three models - centralized, federated, wallet-based. 
And honestly…
All three have some problems. Centralized model is easy. All data in one place. But this is also a problem - if everything is in one place, it becomes a huge target. Hack, misuse - the risk of everything together. Sign gives an interestng shift here - don't keep the data to yourself, give it to the user... in the form credentials. That means... less database, more proof. Federated model has a different problem again. Here one system talks to another system, but there is a broker in the middle. And honestly, that broker sees everything. Where did you log in, what did you verify - everything is traceable. Sign talks about direct verification here. Reducing unnecssary observers between the issuer and the verifier. It sounds good… but how cleanly it can done in practice is also an open question. Wallet model - this is personally the most interesting to me. The user keeps his credentials in his wallet. Conceptually powerful. But the problem is practical - what he loses his phone? What if he loses access? Sign wants to introduce a governance layer here. It means not just tech, but policy + structure for recovery. This place is subtle but very important. Because pure decntralization often fails real-world usability. Now real core - VC layer. It's basically a triangle - issuer, holder, verifier. Let's say, a university gave you a degree. It's not paper anymore... a digital credential. You put it in your wallet. If someone wants verify, you show it. The interesting part here is - you are in control. But here comes the most powerful concept - Selective disclosure.
What used to happen before -
If you want to prove your age, you had to show entire NID. That means exposing a lot of information beyond what is necessary. Here Sign says - no, you just have to prove that you 18+, nothing more. It sounds simple... but actually a paradigm shift. Because here data is not shared, condition is proven. And this is where ZKP comes in. Zero-knowledge proof - this thing used to seem a little abstract. But here it becomes practical. You will prove this is valid - but do not reveal the data. I mean... the system is trusting, but not taking the data. This is the place that I personally find most interesting. Because it is privacy. No, it is controled exposure. But again... there is a tension here. Because who will define the proof? I mean... which proof is valid, which is not - who is making this decision? This is where Sign's schema system comes in. The structure is being defined - how the data will be, how it will verified. But honestly, this layer is sensitive. Because if schema control is centralized, then even if proof layer is technically decntralized... defining the truth will become central. This is a very subtle risk.
Another thing I noticed -
@SignOfficial actually wants to reduce data flow, wants to increase proof flow. I mean what used to - data everywhere. Now they are saying - data stay, proof move. This is theoretically very clean. But real-world adoption will depend - will systems accept it? Because companies have historically created value by collecting data. Now if they don't have data... can they operate with proof only? This is not easy transition. Another angle - economic side. If everything proof-based, infrastruture cost, computation, verification - these will increase. ZKP is not cheap yet. It means architecture strong but cost dynamics are not completely clearoba
In the end what I feel is-
@SignOfficial is not a product. It wants to create an underlying layer. A trust fabric... that will connect systems, but without exposing data. The idea is powerful. The execution is tough. And honestly... evaluating this kind of project is a bit tricky. Because it cannot be judged by hype, and it is not right to ignore it either. I am not fully convinced yet, but I cannot dismiss it either. Because the problem is real. And at least they have caught the problem in the right place. The rest is... execution. But here is a place to see, really - I am tho obak🚀
