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Unconfirmed Meaning

In blockchain networks, an unconfirmed transaction is one that has been broadcast to the network but has not yet been included in a mined or validated block. Transactions typically enter the mempool and await selection by miners or validators, who prioritise transactions based on factors like gas price or fee.

During periods of high network congestion, unconfirmed transactions may sit in the mempool for extended periods or even be dropped if fees are too low. Until a transaction receives at least one confirmation, it is not considered final and can potentially be replaced by other transactions using mechanisms like Replace-by-Fee (RBF).

Merchants and exchanges often wait for a certain number of confirmations (e.g., three or six) before crediting funds to reduce the risk of double-spending.

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