<div dir="ltr"><div style="font-family:arial,sans-serif;font-size:13px">So, I&#39;m having some problems getting a multi input/multi output transaction working. My code below works with 1 input and 2 output, but when adding more inputs/outputs the transaction gets rejected. I&#39;m sure whatever I&#39;m doing wrong in pretty simple, any ideas?</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">Code works for this (1 input, 2 outputs):</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">CTransaction(hash=01a3204517476812df2c2f77735a72a6d3e7eb8b9a5d5330ca433dd875fc4c3c, ver=1, vin.size=2, vout.size=4, nLockTime=0)</div><div style="font-family:arial,sans-serif;font-size:13px">
    CTxIn(COutPoint(6ee4049d6c75d6450e961446d28760207bd7036e2aa692afb80bb34245d3df84, 0), scriptSig=304502204cdfd276ff9c53bb)</div><div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=4.00000000, scriptPubKey=OP_DUP OP_HASH160 b07e181ce438)</div>
<div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=1.00000000, scriptPubKey=OP_DUP OP_HASH160 bf7484e469c8)</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
Code doesn&#39;t work for this (2 input, 4 outputs):</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">CTransaction(hash=01a3204517476812df2c2f77735a72a6d3e7eb8b9a5d5330ca433dd875fc4c3c, ver=1, vin.size=2, vout.size=4, nLockTime=0)</div>
<div style="font-family:arial,sans-serif;font-size:13px">    CTxIn(COutPoint(6ee4049d6c75d6450e961446d28760207bd7036e2aa692afb80bb34245d3df84, 1), scriptSig=304502204aef3f393c273835)</div><div style="font-family:arial,sans-serif;font-size:13px">
    CTxIn(COutPoint(6ee4049d6c75d6450e961446d28760207bd7036e2aa692afb80bb34245d3df84, 0), scriptSig=304502204cdfd276ff9c53bb)</div><div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=4.00000000, scriptPubKey=OP_DUP OP_HASH160 bf7484e469c8)</div>
<div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=491.00000000, scriptPubKey=OP_DUP OP_HASH160 0796b7f3430f)</div><div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=4.00000000, scriptPubKey=OP_DUP OP_HASH160 b07e181ce438)</div>
<div style="font-family:arial,sans-serif;font-size:13px">    CTxOut(nValue=1.00000000, scriptPubKey=OP_DUP OP_HASH160 bf7484e469c8)</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
Pseudo code showing working transaction:</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">    // These are how the vout&#39;s are made</div><div style="font-family:arial,sans-serif;font-size:13px">
    CScript scriptPubKey;</div><div style="font-family:arial,sans-serif;font-size:13px">    scriptPubKey.SetDestination(address);    </div><div style="font-family:arial,sans-serif;font-size:13px">    CScript s;</div><div style="font-family:arial,sans-serif;font-size:13px">
    s &lt;&lt; OP_DUP &lt;&lt; OP_HASH160 &lt;&lt; scriptPubKey.GetID() &lt;&lt; OP_EQUALVERIFY &lt;&lt; OP_CHECKSIG;</div><div style="font-family:arial,sans-serif;font-size:13px"> </div><div style="font-family:arial,sans-serif;font-size:13px">
    CTxOut out(nValue, s);</div><div style="font-family:arial,sans-serif;font-size:13px"> </div><div style="font-family:arial,sans-serif;font-size:13px">    ---------------</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">    CTransaction txNew;</div><div style="font-family:arial,sans-serif;font-size:13px">    txNew.vin.clear();</div>
<div style="font-family:arial,sans-serif;font-size:13px">    txNew.vout.clear();</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">    // vin and vout are already populated </div>
<div style="font-family:arial,sans-serif;font-size:13px">    for(unsigned int i = 0; i &lt; vout.size(); i++){</div><div style="font-family:arial,sans-serif;font-size:13px">        txNew.vout.push_back(vout[i]);</div><div style="font-family:arial,sans-serif;font-size:13px">
    }</div><div style="font-family:arial,sans-serif;font-size:13px">    </div><div style="font-family:arial,sans-serif;font-size:13px">    //add all vins</div><div style="font-family:arial,sans-serif;font-size:13px">    for(unsigned int i = 0; i &lt; vin.size(); i++){</div>
<div style="font-family:arial,sans-serif;font-size:13px">        txNew.vin.push_back(vin[i]);</div><div style="font-family:arial,sans-serif;font-size:13px">    }</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">    //add all vins</div><div style="font-family:arial,sans-serif;font-size:13px">    for(unsigned int i = 0; i &lt; vin.size(); i++){</div><div style="font-family:arial,sans-serif;font-size:13px">
        // this is signed with 2 separate keys for each vin</div><div style="font-family:arial,sans-serif;font-size:13px">        if(!SignSignature(*keystore, prevPubKey, txNew, i, int(SIGHASH_ALL|SIGHASH_ANYONECANPAY))) </div>
<div style="font-family:arial,sans-serif;font-size:13px">            printf(&#39;signing failed!\n&#39;);</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
        // I was told I might need to serialize the inputs? Not sure how that would work</div><div style="font-family:arial,sans-serif;font-size:13px">    }</div><div style="font-family:arial,sans-serif;font-size:13px"><br>
</div><div style="font-family:arial,sans-serif;font-size:13px">    RelayTransaction(txNew, txNew.Hash());</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">---</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">CryptoFish</div></div>