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Overall fee you pay for a transaction, counted in fiat currency (EUR, USD, etc), depends on the following things: Ether to fiat exchange rate (may change over time, out of your control) Gas price (set by you, but miners may reject mining your transaction if gas price is too low) Actual gas used, this depends on what smart contract actually do and how ...


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Ropsten transactions are confirmed by miners on that POW network. Rinkeby transactions are confirmed by specific authorized nodes run by the the Geth team. The Ethereum Foundation, Infura, AKASHA and others might also be involved. Non-validator nodes are run by others in the ethereum space such as PegaSys, Funfair, etc. You can see the list of Rinkeby ...


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The problem is that your wallet has a complex fallback function that uses more than the 2300 gas stipend function() payable { if (!parentAddress.call.value(msg.value)(msg.data)) throw; // Fire off the deposited event if we can forward it ForwarderDeposited(msg.sender, msg.value, msg.data); } One solution is to change _forwardFunds to ...


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