Contract Creation for Padres vs Marlins (Steven vs. Vin) July 17, 2019

padres_marlins_jeton_contract

const jeton = require('jeton-lib')
const PrivateKey = jeton.PrivateKey
const PublicKey = jeton.PublicKey
const Signature = jeton.Signature
const OutputScript = jeton.escrow.OutputScript
const Transaction = jeton.Transaction


// Create the output script
var refpk = new PublicKey("029ba4d2d14a5c24e4b7b6aa953ecf24b599e2f5e944412a9d60e5878f0f6a06cd")
var stevenpk = new PublicKey("03e34df7c516e3a122ef72f9db4cbcd2302ac7c9ec5b1f52cd5f77740654958f31")
var vinpk = new PublicKey("03ef3b289d0c08ab016153975cc028871982a621f35ab548e348ce275bb2b21eca")

var outputScriptData = {
    refereePubKey: refpk,
    parties: [
        {message: 'padreswin', pubKey: stevenpk},
        {message: 'marlinswin', pubKey: vinpk}
    ]
}

outScript = new OutputScript(outputScriptData)

console.log(outScript.toAddress())

At the end of the game, the referee runs this code where "message" is either "padreswin" or "marlinswin" depending on the outcome:

var refPriv = new PrivateKey("PRIVATE_KEY_IN_WIF_FORMAT")
var refereeSig = Signature.signCDS(message, refPriv)
console.log(refereeSig.toString())

Referee then broadcasts that message

The winner will do the following, inputing the referee's broadcasted signature string and chosen address to send the winnings to:

EDIT
Just realized this will need to be done as two separate transactions for now. so run the code for each of the utxos

// UTXOS to be spent by winner
var utxo1 = new Transaction.UnspentOutput({ 
    txid:
    'ab9596efa523e50f2bee749f6ae4cc40cf5bfe6fbf1556e75a4cb994e5700ebd',
    vout: 0,
    satoshis: 6700000,
    scriptPubKey: 'a9144a21989c05afedbedffc20e89f0ac5c13071cb2987' 
})

var utxo2 = new Transaction.UnspentOutput({ 
    txid:
    'e2dcb47a6cf978ae04758041dc0fefb10e82433bc8c2935f9c9a4a9a32a358ca',
    vout: 0,
    satoshis: 6700000,
    scriptPubKey: 'a9144a21989c05afedbedffc20e89f0ac5c13071cb2987' 
})

// Make Transaction from escrow UTXO
sighash = (Signature.SIGHASH_ALL | Signature.SIGHASH_FORKID)

// Satoshi's to spend minus 750 for miner fee (just to be safe)
var amountToSpend = utxo1.satoshis - 750

var spendTx = new Transaction()
.from(utxo1) // then another transaction for utxo2
.to(WINNERS_PREFERRED_ADDRESS, amountToSpend)

var refereeSig = Signature.fromString(REFEREE_SIGNATURE_STRING)

var winnerPriv = new PrivateKey("PRIVATE_KEY_IN_WIF_FORMAT")

spendTx.signEscrow(0, winnerPriv , WINNING_MESSAGE, refereeSig, outScript.toScript(), sighash)

console.log(spendTx.toString())

Then broadcast the resulting transaction to claim the winnings