Double dépense

Transactions

... The problem of course is the payee can't verify that one of the owners did not double-spend the coin. A common solution is to introduce a trusted central authority, or min...

Transaction Throughput and Scalability

...ule (where nodes relay only the first version of a transaction they see, making double-spend attempts more difficult) and double-spend notification protocols that alert mer...

Network Architecture

...on they observe. If a second transaction attempting to spend the same inputs (a double-spend attempt) is detected, nodes will generate a double-spend proof and propagate it...