Can I spend unconfirmed transactions?

Basically yes. You can spend money one block after you receive it . There is nothing built-in to bitcoin that knows anything about the arbitrary custom of waiting for six blocks in order for a payment to be confirmed. Exchanges may not let you send unconfirmed coins, but you should be able to do it with your own wallet.

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What is blockchain in real life?

Blockchain technologies are the digital, distributed, and decentralized ledger representing the most virtual currencies that are accountable for logging all transactions without the need for a financial mediator, such as a bank . In other words, it’s a new means of transmitting funds and logging information.

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What is blockchain and its example?

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system . A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.

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