The mathematics that makes blockchain unbreakable

Blockchain security doesn’t come from firewalls or administrative passwords. It comes from mathematics. Every transaction, block, and wallet is protected by cryptographic primitives designed to make tampering computationally impossible. If blockchain works, it’s because the math leaves no room for shortcuts.

In this article we break down the engine behind distributed trust: hashing, digital signatures, block structure, consensus, the UTXO model, and the shift toward programmable chains. It’s the most important layer to understand — the layer that makes everything above it possible.