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Cryptocurrency, stripped of marketing jargon and speculative hype, is fundamentally a decentralized ledger architecture designed to solve the "double-spending" problem without relying on a centralized, trusted third party (such as a bank or clearinghouse).
At its core, it operates on structural incentives and cryptographic consensus mechanisms, such as Proof of Work (PoW) or Proof of Stake (PoS). In a PoW system like Bitcoin, the algorithm demands that network participants (miners) expend real-world thermodynamic energy (computational power) to validate transactions and secure the network. In