Blockchain Architecture: Layers

Mon, 29 Dec 2025 00:00:00 +0000

In the last two blogs, we looked at the pieces that make a blockchain work and how the network agrees on what is true .

In here, we will look at how all those pieces sit together as layers, how blockchains are structured, and how Layer 1 and Layer 2 actually differ in practice. Once we know what each layer is responsible for, concepts like rollups, sequencers, proofs and scaling start making sense.

Blockchain Components

Sat, 27 Dec 2025 00:00:00 +0000

If you’re still asking ‘Why do I even need to learn Blockchain security? ’ No worries. I wrote this blog to answer exactly that. Give it a read, then come back and we’ll dive into Blockchain 101 together.

Now that you are here, let’s start by understanding what is Blockchain?

But wait, a bit of warning, there is way too much text in the entire blog - I tried putting some AI generated images (which make sense for the blog), but they also were not able to do much, so all the best!

Blockchain-Architecture on krash.dev

Blockchain Architecture: Layers

Blockchain Components