<blockquote>
  <p>Q : What is difference between coinbase.com,blockchain.info and thousand other sites who give me a unique bitcoin address upon registration ? </p>
</blockquote>

<p>These websites are competing web wallet providers. You can also use a mobile wallet or a desktop wallet. bitcoin.org has a list of good options.</p>

<blockquote>
  <p>Also are those bitcoin address unique globally or per site ?</p>
</blockquote>

<p>Each generates their own addresses, but you can send money to someone who uses a different wallet provider by sending it to one of their addresses. </p>

CC BY-SA 3.0
2017-03-22T02:08:43.193Z
2017-03-22T02:08:43.193Z
Nick ODell
<p>Now if the question is stupid forgive me.</p>

<p>From what i have understood so far( i could be wrong )</p>

<ol>
<li>Bitcoin is a digital currency service. </li>
</ol>

<p>Q : What is difference between <code>coinbase.com</code>,<code>blockchain.info</code> and thousand other sites who give me a unique bitcoin address upon registration ? Also are those <code>bitcoin address</code> unique globally or per site ?</p>

<ol start="2">
<li>You can earn money by bitcoin mining ( letting a software solve some complex mathematical problems in your computer)</li>
</ol>

<p>Q : why do we need to solve a problem ? cant it have like a database which checks id/password combination like paypal and others on a server ?</p>

CC BY-SA 3.0
2017-03-21T20:23:20.093Z
I flagged this is a duplicate because of your second question.  As for your first question, you should do a little more research on your own.  You clearly don't have a good concept of Bitcoin yet.  It might be smart to check out https://bitcoin.org first, and then post specific questions you have when you need clarification.  Welcome!
Jestin
CC BY-SA 3.0
2017-03-24T14:44:26.333Z
I've closed this as a duplicate, because two of your three questions are answered in the linked questions comprehensively already, and the third strikes me as a product review question.
Murch
<bitcoind>
Bitcoin Newbie Explaination Mining
IMOBAMA
# Bitcoin Newbie Explaination Mining

(Asked by: username_0 on 2017-03-21)

Now if the question is stupid forgive me.

From what i have understood so far( i could be wrong )

1. Bitcoin is a digital currency service.

Q : What is difference between `coinbase.com`,`blockchain.info` and thousand other sites who give me a unique bitcoin address upon registration ? Also are those `bitcoin address` unique globally or per site ?

2. You can earn money by bitcoin mining ( letting a software solve some complex mathematical problems in your computer)

Q : why do we need to solve a problem ? cant it have like a database which checks id/password combination like paypal and others on a server ?

**Tags:** bitcoind

> **Comments:**
> **username_1**: I flagged this is a duplicate because of your second question.  As for your first question, you should do a little more research on your own.  You clearly don't have a good concept of Bitcoin yet.  It might be smart to check out https://bitcoin.org first, and then post specific questions you have when you need clarification.  Welcome!  
> **username_2**: I've closed this as a duplicate, because two of your three questions are answered in the linked questions comprehensively already, and the third strikes me as a product review question.  

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## 1 answers

### Answer by username_3 on 2017-03-22. Score: 0 | Accepted answer

> Q : What is difference between coinbase.com,blockchain.info and thousand other sites who give me a unique bitcoin address upon registration ?

These websites are competing web wallet providers. You can also use a mobile wallet or a desktop wallet. bitcoin.org has a list of good options.

> Also are those bitcoin address unique globally or per site ?

Each generates their own addresses, but you can send money to someone who uses a different wallet provider by sending it to one of their addresses.


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