@Physes I’m only aware of this - but I haven’t done any research on it: https://forum.ethereum.org/discussion/3779/formal-verification-for-solidity-contracts
@JohnnyEther They used to give me some free test-ether. But sadly not anymore.
Its been a while since I've checked out the site and to check the status of my initial pre-sale wallet. I took the precautions of downloading and storing the json file, but when I go to open the wallet there's nothing there. Even when I take the pre-sale address tot he site I'm faced with a message that leaves me wondering WTH happen to my Ether. I've emailed support and nothing . No response to my email no phone call. So I pitching my concern to the community. Hopefully someone can point me in the right direction to get some reasonable answers.
@FutureThinkers__twitter try those ones: https://www.reddit.com/r/ethereum/comments/4klxo9/solidity_video_tutorial/
@PntA2B_twitter you need to install ethereum wallet on Ubuntu and not Debian to start with. Second: check the size of your Json file. Is it empty? (Try to cat it). Is the extension file correct?
like i do using mist browser
Hey @kuldeep-agg,
ethereumjs-lib is an implementation of the EVM written in Javascript. So it is RUNNING a node.
web3.js is a JS library for talking to a node over JSON-RPC. It can talk to any compliant node, whatever language they are written in. web3.js is usually what you use to join the front-end of your DAPP with the back-end (the blockchain).
ethereumjs-lib is an implementation of the EVM written in Javascript. So it is RUNNING a node.
web3.js is a JS library for talking to a node over JSON-RPC. It can talk to any compliant node, whatever language they are written in. web3.js is usually what you use to join the front-end of your DAPP with the back-end (the blockchain).
@alexvandesande Please direct to where can I start learning about writing a contract and some samples of codes, thanks.
@marwanfarah you can also try ethereum.org/token or one of the specific pages. Have a blast at it ;-)
Hello, I'm trying to complete the greeter example on https://www.ethereum.org/greeter . I'm stuck at trying to deploy my contract using geth. Do you need to have your account unlocked to call
somecontract.new([constructorParam], {from: accountAddress, ...], ...) to deploy a contract? Nothing happens when I'm trying to deploy my contract. I'm guessing it cannot take funds from my locked account and it does not ask me to unlock it.
This is called the constructor function
First we need to add a variable to store the totalSupply and assign it in our constructor function. and then this code is ongoing. Its from here - https://ethereum.org/token#central-mint
i dont understant what do i need to paste to contract
Compare it to the original token contract and you’ll see where to add this
I Have ,made these. snow catchers and i live in Finland. Nestle wanna buy our waters. i have few hundred thousand litres of water. I want to make Water Coin. http://fp.chatango.com/profileimg/b/r/braincell83/full.jpg then Colladial Coin Anfd Ormus coin, http://www.tomsormuswater.com/index.php#order i can make colladial and ormus water. Have talked with selllers and other people that could invest in these coins, So i need help from somebody to make this coin. or a partner . so alone woth this ....
Hi all, i have a big problem. I have create a contract from this site: http://chriseth.github.io/browser-solidity/?#gist=21935dc37c5bfbe92e5a and with 8.65 ethers from my admin wallet. So the contract is failed because not enough GAS but my ethers away for that contract. i don't know how i get back my ethers!?
So that ether is probably lost now. I recommend you do testing with test ether, so you won’t risk real money
