technology medium Fill in the Blank

The technology underlying most cryptocurrencies that enables decentralized consensus is called ________.

  1. Serverless
  2. Water Ice / Oxygen
  3. Blockchain
  4. dimensions

Answer: Blockchain

Blockchain is distributed ledger using cryptographic hashing and consensus mechanisms (PoW, PoS) for tamper-resistant record-keeping. Foundation for Bitcoin, Ethereum, and many CBDC prototypes.

Topic Digital Currencies
Exam Relevance Banking, UPSC, SSC
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