Double Spending
By CoinGecko | Updated on Aug 12, 2021
Double spending refers to the act of spending digital currencies twice. This is most commonly applied on crypto exchanges by unscrupulous actors.Typically, a double spending attack involves an attacker who first deposits a cryptocurrency into an exchange, then waits for it to confirm. Once it is confirmed, the perpetrator sells the deposited crypto for another currency, and then proceed to perform what is known as a 51% attack to try and reverse the blockchain (and his deposit).If successful, the perpetrator is then able to deposit his tokens again, likely in a different crypto exchange.
Related Terms
Full Pay-Per-Share (FPPS)
FPPS is quite similar to PPS; the only difference is that the pool will additionally pay a transaction fee incentive if the block is identified. FPPS is the same as PPS+.
Composability
Composability refers to the ability to combine different components of a software stack.
Open/Close
The price at which a cryptocurrency opens at a time period, for example at the start of the day; the price at which a cryptocurrency closes at a time period, for example at the end of the day.
Miners
Contributors to a blockchain taking part in the process of mining.
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