<p>If you want to use an address to receive funds, then there is no requirement to "report" the offline generated address anywhere. You can create the address (public and private key) offline, read the address out to somebody over the phone (or send email, or post it on a web page), and they can then send bitcoin to that address. </p>

<p>Later, when you want to spend the funds sent to you, you would need to load the keys into a client.</p>

CC BY-SA 3.0
2014-02-09T21:22:32.343Z
2014-02-09T21:22:32.343Z
Greg Hewgill
<p>I think I can generate bitcoin addresses offline by JS. Can I use them directly or have to report them to somewhere so that the network knows my addresses?</p>

CC BY-SA 3.0
2014-02-09T21:20:17.010Z
What do you want to use the addresses for?
Nate Eldredge
CC BY-SA 3.0
2014-02-09T21:21:30.867Z
Hi @Nate Eldredge, just do transactions normally : )
GarlicBread
CC BY-SA 3.0
2014-02-09T21:27:14.460Z
Related: [At what point is a new wallet known by the Bitcoin network?](http://bitcoin.stackexchange.com/q/13225/5406)
Murch
<address>
How to apply my bitcoin address generated offline to online
GarlicBread
# How to apply my bitcoin address generated offline to online

(Asked by: username_0 on 2014-02-09)

I think I can generate bitcoin addresses offline by JS. Can I use them directly or have to report them to somewhere so that the network knows my addresses?

**Tags:** address

> **Comments:**
> **username_1**: What do you want to use the addresses for?  
> **username_0**: Hi @username_1, just do transactions normally : )  
> **username_2**: Related: [At what point is a new wallet known by the Bitcoin network?](http://bitcoin.stackexchange.com/q/13225/5406)  

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## 1 answers

### Answer by username_3 on 2014-02-09. Score: 1 | Accepted answer

If you want to use an address to receive funds, then there is no requirement to "report" the offline generated address anywhere. You can create the address (public and private key) offline, read the address out to somebody over the phone (or send email, or post it on a web page), and they can then send bitcoin to that address.

Later, when you want to spend the funds sent to you, you would need to load the keys into a client.


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