So kaufen Sie GNT-Token mit myetherwallet

Dies ist das erste Mal, dass ich Ethereum-Token im Mainnet kaufe. Wahrscheinlich mache ich etwas falsch, also bin ich bereit, Kommentare oder Hinweise zu diesem Prozess zu hören. Meine Ethereum-Adresse im Mainnet lautet https://etherscan.io/address/0x919ae3010329decba980259d1e624be6028d16c7

Über https://www.myetherwallet.com/#contracts habe ich versucht, den TokenSeller-Vertrag https://github.com/bokkypoobah/TokenTrader/wiki/TokenSeller-And-TokenSellerFactory aufzurufen, wie unter https://cryptoderivatives.market/token beschrieben /GNT

Ich bin nur daran interessiert, ein paar Golem Network Tokens (GNT) zu kaufen und im Grunde 0,1 Ether auszugeben, nur um herumzutesten. Also habe ich die Methode createSaleContract() auf contractAddress 0xb1eb96f752c624dc784d80961a1accfaf348c923 und ABI ausgeführt:

[{"constant":false,"inputs":[{"name":"tokenAddress","type":"address"},{"name":"tokens","type":"uint256"}],"name":"ownerWithdrawERC20Token","outputs":[{"name":"ok","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"tradeContract","type":"address"}],"name":"verify","outputs":[{"name":"valid","type":"bool"},{"name":"owner","type":"address"},{"name":"asset","type":"address"},{"name":"sellPrice","type":"uint256"},{"name":"units","type":"uint256"},{"name":"sellsTokens","type":"bool"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"asset","type":"address"},{"name":"sellPrice","type":"uint256"},{"name":"units","type":"uint256"},{"name":"sellsTokens","type":"bool"}],"name":"createSaleContract","outputs":[{"name":"seller","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"type":"function"},{"payable":false,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"ownerAddress","type":"address"},{"indexed":true,"name":"tokenSellerAddress","type":"address"},{"indexed":true,"name":"asset","type":"address"},{"indexed":false,"name":"sellPrice","type":"uint256"},{"indexed":false,"name":"units","type":"uint256"},{"indexed":false,"name":"sellsTokens","type":"bool"}],"name":"TradeListing","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"tokenAddress","type":"address"},{"indexed":false,"name":"tokens","type":"uint256"}],"name":"OwnerWithdrewERC20Token","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_from","type":"address"},{"indexed":true,"name":"_to","type":"address"}],"name":"OwnershipTransferred","type":"event"}]

Die Aufrufparameter sind:

asset Golem => 0xa74476443119a942de498590fe1f2454d7d4ac0d
sellPrice .1
units 40 => rate .0025
sellsTokens true

Die resultierende Transaktion ist:

senden:

amount 0
gas limit 29091

Roh-TX:

{"nonce":"0x00","gasPrice":"0x098bca5a00","gasLimit":"0x71a3","to":"0xb1eb96f752c624dc784d80961a1accfaf348c923","value":"0x00","data":"0xc5e412e5000000000000000000000000a74476443119a942de498590fe1f2454d7d4ac0d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000280000000000000000000000000000000000000000000000000000000000000001","chainId":1}

Transaktion eingereicht: https://etherscan.io/tx/0x6f739b16584e8e9d24ee34c79efbd60463da8cb6c3f05fdca74c6e400d5b0867

Habe aber diesen Fehler:

     Warning! Error encountered during contract execution [Bad jump destination]

Irgendwelche Ideen? Danke!