Digital Bytes

Digital Bytes

Centralised v decentralised cryptocurrency (Part 1)

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Jonny Fry
Sep 23, 2025
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The cryptocurrency landscape is defined by a fundamental philosophical and architectural schism. On one side stands the centralised exchange or CEX, an entity that mirrors traditional finance with its emphasis on intermediary control and a single point of authority. On the other side is the decentralised exchange or DEX, a new model that seeks to eliminate the middleman entirely embodying the core ethos of self-custody and peer-to-peer transactions. The choice between these two exchange models is not simply a matter of preference but a strategic decision involving a complex set of trade-offs. Each has very different architectural foundations, offers different user experiences and market dynamics and presents unique risks as well as regulatory challenges, but offers alternative ways for users in our fast-evolving digital financial landscape.

Core principles and architectural foundations

To understand the divergent nature of CEXs and DEXs, one must first grasp the core principles that gov…

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