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Edited ch02.asciidoc with Atlas code editor

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judymcconville@roadrunner.com 2017-05-03 08:37:24 -07:00
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@ -142,7 +142,7 @@ image::images/mbc2_0207.png["Distributing Transaction"]
=== Constructing a Transaction
((("transactions", "constructing", "wallet applications for")))((("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. 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.
((("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. 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.
==== Getting the Right Inputs
@ -228,7 +228,7 @@ If Bob's bitcoin wallet application is directly connected to Alice's wallet appl
[TIP]
====
((("transactions", "constructing", "confirmations")))((("confirmations", "of small-value transactions", secondary-sortas="small-value transactions")))A common misconception about bitcoin transactions is that they must be "confirmed" by waiting 10 minutes for a new block, or up to 60 minutes for a full six confirmations. Although confirmations ensure the transaction has been accepted by the whole network, such a delay is unnecessary for small-value items such as a cup of coffee. A merchant may accept a valid small-value transaction with no confirmations, with no more risk than a credit card payment made without an ID or a signature, as merchants routinely accept today.
((("transactions", "constructing", "confirmations")))((("confirmations", "of small-value transactions", secondary-sortas="small-value transactions")))A common misconception about bitcoin transactions is that they must be "confirmed" by waiting 10 minutes for a new block, or up to 60 minutes for a full six confirmations. Although confirmations ensure the transaction has been accepted by the whole network, such a delay is unnecessary for small-value items such as a cup of coffee. A merchant may accept a valid small-value transaction with no confirmations, with no more risk than a credit card payment made without an ID or a signature, as merchants routinely accept today.((("", startref="Tconstruct02")))
====
=== Bitcoin Mining