You’ve heard the word blockchain everywhere in crypto conversations, but what exactly is it and how does it really work? In this video, Sami breaks it down for you the fundamentals of blockchain technology — why blockchain is called a decentralized digital ledger, how consensus mechanisms like proof of work and proof of stake keep networks safe, and what makes blockchain revolutionary beyond just crypto.
Whether you’re new to crypto or just want a clear explanation from the source, this video gives you a solid foundation on blockchain technology and why it’s capturing the attention of governments, banks, and major corporations worldwide.
In this episode, you will understand:
✅ What a blockchain really is and how blocks link together
✅ Why blockchain data is immutable and secure
✅ How decentralized consensus works to verify transactions
✅ The difference between proof of work and proof of stake
✅ Practical applications of blockchain beyond cryptocurrency
✅ Why blockchain is reshaping trust on the internet
📚 Resources:
What Is Blockchain and How Does It Work?
⏱️ Timestamps:
⏳ 0:00 – Introduction
⏳ 0:14 – What is Blockchain?
⏳ 0:42 – Why does a blockchain matter? Immutability, Decentralisation
⏳ 1:06 – Decentralised Verification: Nodes, Hashes, Consensus
⏳ 1:39 – Proof of Work (PoW): What it is, and other consensus mechanisms
⏳ 2:06 – What can you do with blockchain technology?
⏳ 2:37 – Why blockchain matters beyond crypto
⏳ 2:45 – Outro
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