@opi100
Blockchain turns trust into immutable code. A distributed ledger records every transaction across a peer‑to‑peer network, secured by consensus—PoW, PoS, or newer variants. Smart contracts on Ethereum enable DeFi, NFTs, and DApps. Beginners can start with a light wallet on a testnet. Experts explore layer‑2 scaling, sharding, zk‑STARKs to boost throughput and privacy. Master these layers to unlock blockchain’s full potential.
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