<p>Bitcoin has a complex <a href="https://en.bitcoin.it/wiki/Script">scripting system</a> which can be used to set the conditions under which the money sent by a transaction can be redeemed. For example, it is possible to send bitcoins in such a way that they can be only redeemed by someone who finds a <a href="https://bitcointalk.org/index.php?topic=293382">collision for a specific hash function</a>.</p>

<p>Most of the time, however, bitcoins are sent to a script which requires a signature from a single key to redeem. In this case, the address is the encoded hash of that key. In general, however, not every script corresponds to an address.</p>

<p>Strange transactions are transactions which have either input or output scripts not matching any of the predefined patterns for standard scripts. Such transactions must be created manually, but they can contain any script permitted by Bitcoin. So, there are no specific patterns that they follow, but rather there are patterns that they do not follow.</p>

CC BY-SA 3.0
2014-10-01T10:57:19.020Z
2014-10-01T10:57:19.020Z
abacabadabacaba
<p>At blockchain.info there is a tool to report strange transactions. It is reported that </p>

<blockquote>
  <p>Transactions containing outputs from which we were unable to decode a bitcoin address</p>
</blockquote>

<p>According to the above statement"</p>

<ul>
<li>How does the verification work?</li>
<li>Are there any patterns that strange transactions follow?</li>
</ul>

<transactions><blockchain>
What makes a Strange Transaction
istovatis
# What makes a Strange Transaction

(Asked by: username_0 on 2013-10-19)

At blockchain.info there is a tool to report strange transactions. It is reported that

> Transactions containing outputs from which we were unable to decode a bitcoin address

According to the above statement"

* How does the verification work?
* Are there any patterns that strange transactions follow?

**Tags:** transactions, blockchain


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## 1 answers

### Answer by username_1 on 2014-10-01. Score: 6

Bitcoin has a complex [scripting system](https://en.bitcoin.it/wiki/Script) which can be used to set the conditions under which the money sent by a transaction can be redeemed. For example, it is possible to send bitcoins in such a way that they can be only redeemed by someone who finds a [collision for a specific hash function](https://bitcointalk.org/index.php?topic=293382).

Most of the time, however, bitcoins are sent to a script which requires a signature from a single key to redeem. In this case, the address is the encoded hash of that key. In general, however, not every script corresponds to an address.

Strange transactions are transactions which have either input or output scripts not matching any of the predefined patterns for standard scripts. Such transactions must be created manually, but they can contain any script permitted by Bitcoin. So, there are no specific patterns that they follow, but rather there are patterns that they do not follow.


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