What is Coin Control?
Coin ControlIt is an advanced feature that enhances privacy and asset management. Bitcoin basedUTXO (unspent transaction output)model, which allows users to manually pick specific asset sources for payment, rather than being automatically allocated by the system.
Analogy understanding: Think of your wallet as a "physical wallet" that holds bills of different denominations. For ordinary transactions, the system randomly selects banknotes to make up the number, while Coin Control gives users the right to manually select specific "banknote" combinations.
Core advantages
Privacy protection and address isolation
Prevent identity association: Avoid mixing assets with real-name addresses and anonymous addresses in one transaction to reduce the risk of being tracked by on-chain analysis tools.
Control balance exposure: By selecting a specific UTXO, prevent the total assets in the wallet from being disclosed to the payee during the change process.
Asset Management and Cost Optimization
Optimize transaction fees: Users can manually integrate fine UTXOs to reduce transaction costs in future high-rate environments.
Lock special assets: Prevent UTXO with special value (such as Ordinals protocol token) from being mistakenly spent as ordinary handling fees or transaction amounts.
Operation Guide (UKey App)
Click on the Bitcoin network"send"。
After entering the recipient address, select"Coin Control"。
Manually check the UTXO to be spent in the list or configure the currency selection strategy.