Lets assume we have transaction with 2 inputs, each worth 1 bitcoin, and we send these 2 bitcoins to one address.

  • What happens if there is successful double spend attack on bitcoins in our first input?
  • How many bitcoins recipient gets, one or zero?

1 Answer 1


A transaction either gets confirmed in its entirety (by being included in a block) or none at all. If one of the inputs is successfully doublespent, then your tx is invalid so will never be confirmed.

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