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CH02::constructing: clarify offline requirements

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Previous text said that wallets can construct tranactions offline.  Add
clarification that this requires the wallet to already know what inputs
it controls.
This commit is contained in:
David A. Harding 2023-02-04 12:42:01 -10:00
parent fa7a385c83
commit 2753d8cd8d
1 changed files with 6 additions and 5 deletions
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ch02.asciidoc
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@ -329,11 +329,12 @@ image::images/mbc2_0207.png["Distributing Transaction"]
((("transactions", "constructing", id="Tconstruct02")))((("wallets",
"constructing transactions")))Alice's wallet application contains all
the logic for selecting appropriate inputs and outputs to build a
transaction to Alice's specification. Alice only needs to specify a
destination and an amount, and the rest happens in the wallet
application without her seeing the details. Importantly, a wallet
application can construct transactions even if it is completely offline.
the logic for selecting inputs and generating outputs to build a
transaction to Alice's specification. Alice only needs to choose a
destination, amount, and transaction fee, and the rest happens in the wallet
application without her seeing the details. Importantly, if a wallet
already knows what inputs it controls, it can construct transactions
even if it is completely offline.
Like writing a check at home and later sending it to the bank in an
envelope, the transaction does not need to be constructed and signed
while connected to the Bitcoin network.