What is Dust

The term "dust" refers to relatively small quantities of cryptocurrency. To manage transactions, blockchains such as Bitcoin use the idea of "unspent transaction outputs" (UTXO). UTXO model traders on a blockchain may obtain modest sums of "change" from a transaction. These little amounts of money are not always usable. Users are not permitted to transfer "dust" of a currency if doing so would cost more than the transaction costs specified. However, transaction costs change according on transaction volume, which means that individuals who hold defunct "dust" may be able to trade it at a later date.

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