This is funny tool for VRSC that allows you to know is this a winner between your UTXOs for next 100 blocks or no.
Don't forget that VERUS_MIN_STAKEAGE = 150 and knowledge about next +100 blocks gives you nothing. Because you can't manipulate txid ... for example, if now nHeight = 1000 (current we are solving block 1000) we can predict winner for [1000..1100] block, but not far. And if you make a tx on 1000 blocks, it starts staking only on 1150 block and there is no prediction for this utxo. Only for next +100 blocks for utxo with depth > 150 (depth = number of confirmations).
Usage example:
Usage: ./verus-vanga <txid> <voutnum> <height> <value> <target>
Real example:
./bin/Release/verus_vanga 78582a80a16f25570a7208085a6b99a989fe2ba8152b4a602b3ba2a75d1024eb 0 73195 150797299492 000000000004f3dc000000000000000000000000000000000000000000000000
Here:
txid - txid id of utxo
voutnum - num of this vout
height - height of block on which we want to predict (+0 ... +100 of current height)
value - utxo value
target - pos target (you can't acquire this 256-bit via RPC, it calcs internally in verusd).
But you can add debug printout to source code in wallet.cpp to know this number:
pwalletMain->AvailableCoins(vecOutputs, true, NULL, false, false);
if (pastBlockIndex = komodo_chainactive(nHeight - COINBASE_MATURITY))
{
uint256 pastHash = pastBlockIndex->GetBlockHash();
BOOST_FOREACH(COutput &txout, vecOutputs)
{
// [+] Decker
printf("[ %d.%s.%d ] %s %s\n", nHeight, txout.tx->GetHash().ToString().c_str(), txout.i, txout.tx->GetVerusPOSHash(txout.i, nHeight, pastHash).ToString().substr(0,16).c_str(), target.ToString().substr(0,16).c_str());
// [+] Decker
if (txout.fSpendable && (UintToArith256(txout.tx->GetVerusPOSHash(txout.i, nHeight, pastHash)) <= target) && (txout.nDepth >= VERUS_MIN_STAKEAGE))
{
// get the smallest winner
if (Solver(txout.tx->vout[txout.i].scriptPubKey, whichType, vSolutions) && (whichType == TX_PUBKEY || whichType == TX_PUBKEYHASH) &&
(!pwinner || pwinner->tx->vout[pwinner->i].nValue > txout.tx->vout[txout.i].nValue))
pwinner = &txout;
}
}
Combine using this tool with bash scripting and parsing json output of daemon. For example you can obtain all of your utxos in format utxo:vout:value and try to make a prediction.
See predict.sh example script in repo.
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