<p>redeem:</p>

<pre><code>&lt;pubkey3&gt; OP_CHECKSIGVERIFY OP_1 &lt;pubkey1&gt; &lt;pubkey2&gt; OP_2 OP_CHECKMULTISIG
</code></pre>

<p>scriptSig:</p>

<pre><code>OP_FALSE &lt;sig1&gt; &lt;sig3&gt; &lt;redeem&gt;
</code></pre>

<p>or </p>

<pre><code>OP_FALSE &lt;sig2&gt; &lt;sig3&gt; &lt;redeem&gt;
</code></pre>

CC BY-SA 3.0
2016-01-05T06:38:43.350Z
2016-01-05T06:50:58.673Z
2016-01-05T06:50:58.673Z
amaclin
<p>Is it possible to create a multisig address such that it has 3 public keys attached, needs 2 signatures to create a transaction, <em>but</em> one of the signatures must be from a specific public key of the 3? If so, how?</p>

<multi-signature>
Multisig address with a specific required signature
derp
# Multisig address with a specific required signature

(Asked by: username_0 on 2016-01-05)

Is it possible to create a multisig address such that it has 3 public keys attached, needs 2 signatures to create a transaction, *but* one of the signatures must be from a specific public key of the 3? If so, how?

**Tags:** multi-signature


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## 1 answers

### Answer by username_1 on 2016-01-05. Score: 1 | Accepted answer

redeem:

```
<pubkey3> OP_CHECKSIGVERIFY OP_1 <pubkey1> <pubkey2> OP_2 OP_CHECKMULTISIG

```

scriptSig:

```
OP_FALSE <sig1> <sig3> <redeem>

```

or

```
OP_FALSE <sig2> <sig3> <redeem>

```


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