<p>It's the transaction (or transactions) that bob got his bitcoins from.</p>

CC BY-SA 3.0
2013-04-01T20:51:26.487Z
What if that previous transaction is old? Does this matter?
anapaso
CC BY-SA 3.0
2013-04-01T21:12:45.937Z
@user2016355 If the previous transaction is old, then the bitcoin network will give the new transaction special treatment.
Nick ODell
CC BY-SA 3.0
2013-04-01T21:19:42.223Z
Thanks Nick. Is it possible to explain more? is there any link that I can read on the internet for that special treatment?
anapaso
CC BY-SA 3.0
2013-04-01T22:42:56.920Z
@user2016355 https://en.bitcoin.it/wiki/Transaction_fees Look for "Technical info"
Nick ODell
CC BY-SA 3.0
2013-04-01T20:38:53.537Z
2013-04-01T20:38:53.537Z
Nick ODell
<p>I'm new in the bitcoin field and I need to understand about transactions.
When Bob is sending bitcoins to Alice, Bob will create a tx, he will add Alice's address, sign it and broadcast it in the network. But what is the previous transaction in this case? Is it a different tx from the one between Bob and Alice? </p>

<transactions>
What is a previous transaction?
anapaso
# What is a previous transaction?

(Asked by: username_0 on 2013-04-01)

I'm new in the bitcoin field and I need to understand about transactions.
When Bob is sending bitcoins to Alice, Bob will create a tx, he will add Alice's address, sign it and broadcast it in the network. But what is the previous transaction in this case? Is it a different tx from the one between Bob and Alice?

**Tags:** transactions


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## 1 answers

### Answer by username_1 on 2013-04-01. Score: 2 | Accepted answer

It's the transaction (or transactions) that bob got his bitcoins from.

> **Comments:**
> **username_0**: What if that previous transaction is old? Does this matter?  
> **username_1**: @user2016355 If the previous transaction is old, then the bitcoin network will give the new transaction special treatment.  
> **username_0**: Thanks Nick. Is it possible to explain more? is there any link that I can read on the internet for that special treatment?  
> **username_1**: @user2016355 https://en.bitcoin.it/wiki/Transaction_fees Look for "Technical info"  

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