The correct answer is:
b) proof of work
b) 10 minutes
c) bitcoins that are unspent for a long time and probably this is due to the fact that their private keys are lost.
Crypto Quiz about: BITCOIN
The correct answer is:
b) proof of work
b) 10 minutes
c) bitcoins that are unspent for a long time and probably this is due to the fact that their private keys are lost.