kramer65
  • Member for 8 years, 1 month
  • Last seen more than 3 years ago
Does a Bitcoin node need to scan through the whole blockchain in order to be 100% sure that a transaction sent to it is genuine?
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Yes, the whole blockchain needs to be scanned. But as David already says, it does so when it syncs/imports the whole blockchain. So you can see it like this. When a new node is set up, it gets all ...

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