2. 1. Bitcoin transactions: Identify the one wrong statement (a) Bitcoin does not use an accout based system to avoid that anyone who wants to determine if a transaction is valid will have to keep...

2.

1. Bitcoin transactions: Identify the one wrong statement

(a) Bitcoin does not use an accout based system to avoid that anyone who wants to determine if a transaction is valid will have to keep track of the account balances. (b) Bitcoin uses an account based system since it corresponds to the mental model that most humans have. (c) Bitcoin uses a ledger that just keeps track of transactions similar to ScroogeCoin. (d) You can think of the inputs of a transaction as coins being consumed (created in a previous transaction) and the outputs as coins being created.