Every bank relies on the public internet every day. Almost none would expose internal payment systems or customer records through it. Openness is useful for communication. Financial infrastructure depends on access control, authorization, privacy and auditability existing together. That was the first analogy that made Dusk feel more intuitive to me
At first I assumed the difficult part was the cryptography. If programmable privacy, selective disclosure and deterministic settlement already exist on one Layer 1, regulated finance starts to look like an engineering problem. Then I stopped looking at the architecture and followed a single tokenized security through its lifecycle instead
The trade settles. Ownership changes. Most information stays confidential while regulators can verify only what they are entitled to see. That seems elegant until I imagine a regulatory review months later. Investigations rarely examine one transaction. They reconstruct sequences, responsibilities and timing across institutions, each operating under different disclosure permissions
That was the part I hadn't appreciated before. Programmable privacy may reduce unnecessary exposure, but preserving enough shared context for independent review could become its own operational layer as participation grows. The proof may already show every rule was followed. The more I think about it, the harder question may not be whether each institution can prove its own actions, but whether independent reviewers can reconstruct one coherent history without anyone revealing everything. That feels less like a cryptography problem now, and more like an infrastructure problem that only becomes visible once real institutions start depending on it
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