user26327: Let's say I have wallets A,B,C.
A funds multisig address with B and C.
B & C show keys, get input and spent it to OP_RETURN transactions.
Is it possible?

user18196: If this is what you are proposing:
Address A: 1Axyz...
Address B: 1Bxyz...
Address C: 1Cxyz...

Tx1

A -> Multisig requiring 1 of 2 signatures from pubkeys of B & C

Tx2

Tx1 output 0 -> OP_RETURN

Then yes, that's totally legal on the blockchain. Not sure why you would want to do it, though.

26327: <p>Let's say I have wallets A,B,C.
A funds multisig address with B and C.
B &amp; C show keys, get input and spent it to OP_RETURN transactions.</p>

<p>Is it possible?</p>
 18196: <p>If this is what you are proposing:</p>

<pre><code>Address A: 1Axyz...
Address B: 1Bxyz...
Address C: 1Cxyz...

Tx1

A -&gt; Multisig requiring 1 of 2 signatures from pubkeys of B &amp; C

Tx2

Tx1 output 0 -&gt; OP_RETURN
</code></pre>

<p>Then yes, that's totally legal on the blockchain. Not sure why you would want to do it, though.</p>
