Dust
Dust is a crypto amount so small that spending it may be uneconomical because transaction fees can approach or exceed its value.
✦ Key Insight
Dust can increase transaction complexity, create unnecessary fees, and sometimes be used in privacy attacks.
✕ Common Misconceptions
Do not interact with unknown tokens or links simply because an unexpected tiny balance appears in your wallet.
Detailed Explanation
In Practice
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Network Fee
A network fee is the amount paid to have a blockchain transaction processed and included according to that network's fee rules.
Coin control
Coin control is a Bitcoin wallet feature that lets users choose which specific UTXOs will be spent in a transaction.
sat/vB
sat/vB means satoshis per virtual byte and is a common unit for expressing the fee rate of a Bitcoin transaction.
UTXO
A UTXO is an unspent transaction output that represents a discrete amount of cryptocurrency available to be used as an input in a future transaction.
Dusting attack
A dusting attack sends tiny amounts of cryptocurrency to addresses so later transaction activity may reveal links between addresses or wallet ownership.