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What is Bitcoin Core's "Coin Control Features"?
How do I use it, and what can I do with it?
What does Bitcoin Core's "Coin Control Features" do and how do I use it?
Answers
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From the "Yet another Coin Control Release [CLOSED]" BitcoinTalk thread:
What is coin control? When you send bitcoins to someone else, the bitcoin client chooses kinda randomly which of your addresses will send the coins. With coin control you can exactly choose, which of your addresses will be the sending addresses. And even more specific which of your unspent outputs will be the sending inputs.
1This is in Bitcoin Core, now. – Nick ODell – 2015-05-20T21:07:24.450
Any idea how to use coin control features using the JSON RPC commands? – Vivek Teega – 2017-09-20T18:30:04.550
@VivekTeega Not automatically. When constructing transactions from scratch on the command-line, you have to choose addresses and compute amounts all manually. See Mastering Bitcoin (1st ed.), § "Using Bitcoin Core’s JSON-RPC API from the Command Line", §§ "Creating, Signing, and Submitting Transactions Based on Unspent Outputs".
– Geremia – 2017-09-21T03:10:25.993