What stand out to me about verification systems is that their hardest problem is rarely proof creation.
It is proof usability. A credential can be valid, signed and technically complete, yet still fail in practice if no one can find it read it or act on it.
That is the weakness in many traditional verification models.They produce attestations, but they do not always produce visibility. And without visibility, trust becomes fragile. A system that cannot expose evidence cleanly is not scalable..it is merely well intentioned.
SignScan addresses that gap inside Sign Protocol by making attestation data operationally visible through indexing, explorer access and APIs. That matters because proof is only useful when it becomes legible to both developers and ordinary users.
i keep coming back to the difference between proof creation and proof retrieval. Creation protects integrity. Retrieval enables coordination. One secures the record; the other makes the record matter.
That is why queryability is not a side feature in trust systems. It is the missing layer many designs underestimate. In the long run, verification systems succeed not when they merely store proof, but when they make proof usable.