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Discussion on: Blockchain: What is Mining?

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Swati Jain

Hi Damien,

Thanks for the information.

Can you help me understand few basic questions:

1) If a block is verified, does it mean that the transactions in it are also verified? If yes, how does it make the system record authentic transactions (not exactly from a bitcoin perspective) ? Eg If a block has 20 pending transactions out of which 10 are authentic, is there a way to decline them?
2) What exactly is validation? Does every node (not every mining node) validate the block/transaction for it to be logged in a block? If yes, what happens if all the concerned parties do not authenticate- does this not increase the time in approving transactions?