By Nova Team
Blockchain is a distributed ledger technology that records transactions across many computers so that the record cannot be altered retroactively.
### 🔗 Why Blockchain Matters
It provides a secure, transparent, and decentralized way of storing data and value. Unlike traditional databases, blockchain is not controlled by a single entity — meaning users have true ownership.
### ⚙️ Core Concepts
1. **Blocks:** Units that contain transaction data.
2. **Hashing:** Cryptographic method to secure data.
3. **Consensus:** Ensures all participants agree on a single version of truth.
In the Web3 world, blockchain acts as the backbone of digital trust, enabling decentralized finance, NFTs, and beyond.
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