029. the blockchain ledger: how to build trust without a centre (ks5)

For centuries, we have relied on central authorities - like banks or governments - to keep track of our money and records. But what if we could build a system where everyone agrees on the truth without needing a boss in charge? This is the revolutionary idea behind the blockchain. In this advanced module, we will dissect how decentralised ledgers, cryptography, and consensus algorithms work together to build trust in a completely trustless environment.