Architecture Behind Blockchain in Simple Terms
Blockchain architecture isn’t complicated once you break it down.
At its core, it’s a secure and decentralized way of keeping records.
Once something’s recorded, it can’t be changed.
Here’s the breakdown:
Blocks.
Blockchain is made up of blocks.
Each block has transactions , data like money transfers or contract changes.
Once a block is full, it’s added to the chain.
Hashing.
Every block has a hash.
A hash is like a unique fingerprint for each block.
Change the block? The hash changes.
The whole chain gets messed up.
Consensus Mechanisms.
How does blockchain decide what goes in?
That’s where consensus mechanisms come in.
There are two types of CM’s:
- Proof of Work (PoW): Miners solve puzzles to add blocks.
- Proof of Stake (PoS): Validators are picked based on how much crypto they lock up.
Decentralization.
No central authority.
Thousands of computers (nodes) keep copies of the blockchain.
For a new block to be added, most nodes have to agree.
Smart Contracts.
These are self-executing contracts.
No middleman.
Once conditions are met, the contract runs itself.
Security.
Blockchain is secure by design.
- Immutable: Once it’s in, it’s in.
- Encrypted: Only the right people can read the data.
- Distributed: No single point of failure.
Real-World Uses.
Blockchain isn’t just for crypto.
It’s used for:
- Supply chains: Tracking products.
- Healthcare: Securing medical data.
- Voting: Making elections fair.
- NFTs: Proving ownership of digital assets.
- Sky is the limit…!
Scaling.
Blockchain needs to scale.
Layer 2 solutions help process more transactions without slowing things down.
Final Word.
Blockchain is a decentralized ledger.
It’s secure, transparent, and tamper-proof.
It’s already revolutionizing industries.
And the best part?
It’s just getting started.
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Thanks for reading!
