UPSC PRELIMS · GEOGRAPHY · SCIENCE & TECHNOLOGY — BLOCKCHAIN

With reference to “Blockchain Technology”, consider the following statements: 1. It is a public ledger that everyone can inspect, but which no single user controls. 2. The structure and design of blockchain is such that all the data in it are about cryptocurrency only. 3. Applications that depend on basic features of blockchain can be developed without anybody’s permission. Which of the statements given above is/are correct?

Take a breath. Choose one. Press A–D on your keyboard if you like.

EXPLANATION

Blockchain can be a distributed public ledger and permissionless applications can be built on suitable networks; its uses extend beyond cryptocurrency.

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