<p>This has been covered before (I can't give links at this juncture as I'm on mobile device), but:</p>

<ul>
<li>each block references the previous block, preserving manipulation of blocks through POW</li>
<li>each Tx references it's corresponding UTXO hash</li>
<li>each UTXO requires a cryptographic puzzle (script) solution to spend the UTXOs</li>
</ul>

<p>I'm sure someone will refer you to further information if I haven't edited this myself later on.</p>

CC BY-SA 3.0
2015-02-13T10:27:19.723Z
https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages
amaclin
CC BY-SA 3.0
2015-02-13T17:00:36.313Z
I'm not sure this answers the question. The asker is asking about whether clients validate the block (they do) not whether the information to validate the block is sent between nodes.
Nick ODell
CC BY-SA 3.0
2015-02-13T07:25:31.730Z
2015-02-13T07:25:31.730Z
Wizard Of Ozzie
<p>After successfully mining a block, the block and the solution is broadcast to the network. The nodes on the network in turn verify the solution. Aren't transactions that belong to the broadcasted mined block validated?</p>

<transaction-verification>
Are transactions in the mined block validated by other nodes on the network?
Curious
# Are transactions in the mined block validated by other nodes on the network?

(Asked by: username_0 on 2015-02-13)

After successfully mining a block, the block and the solution is broadcast to the network. The nodes on the network in turn verify the solution. Aren't transactions that belong to the broadcasted mined block validated?

**Tags:** transaction-verification


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## 1 answers

### Answer by username_1 on 2015-02-13. Score: 1

This has been covered before (I can't give links at this juncture as I'm on mobile device), but:

* each block references the previous block, preserving manipulation of blocks through POW
* each Tx references it's corresponding UTXO hash
* each UTXO requires a cryptographic puzzle (script) solution to spend the UTXOs

I'm sure someone will refer you to further information if I haven't edited this myself later on.

> **Comments:**
> **username_2**: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages  
> **username_3**: I'm not sure this answers the question. The asker is asking about whether clients validate the block (they do) not whether the information to validate the block is sent between nodes.  

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