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  • Jun 05 2016 10:31
    @alexvandesande banned @adamskee
  • Mar 16 2016 01:12
    @alexvandesande banned @scbosse
Immanuel-john
@Immanuel-john
How can I get the private key from a UTC file by a program?
How can I get the private key from a UTC file by a program?
How can I get the private key from a UTC file by a program?
How can I get the private key from a UTC file by a program?
Singh
@Nitishkumar3211
Privacy on the Blockchain. How it is possible ?
dneves808
@dneves808
Hey guys, im a rookie trying to create an erc20, everytime I paster the erc20 code in the token code area it tells me internal error w json file cannot compile code. plz help
json rpc error
Hasnat Ahmed
@hasnat98044
Hello Everyone
Hey guys, its been a week I am trying to connect to test network on ethereum, but sync doesn't shows false. What to do now. Looking forward from you.
ThisIsCodeXpert
@ThisIsCodeXpert
@zhangxing152 You can check out this link : https://youtu.be/w-2X03Z35x4
ZhongHDT
@zhonghaigang
Why is China's ICO now unrestrained?
howletking
@howletking
连接testnet Balance null 谁有解决办法
i got 0 when call eth.getBalance(eth.accounts[0]) in the js console
谁遇见过,指点一下
KingScorpio
@KingScorpio
hy folks
i have a question about ethereum
i heard ether is now not needed to use and run it
so are transactions now for free or do they tace a small percentage fee of the transaction sum?
Sam
@zhang3333333
AI
Raheel Aslam
@raheelll
Hi
Please Can ethereum Devs guide what i need for creating the ERC20 token and get reward on base of taken ?
?
@zhang3333333 ?
amazonmonkey1974
@amazonmonkey1974
Hi, I am 100% new to smart contracts and am looking for a combined token and crowdsale contract that is secure. I copied some code from a site that is basically a tutorial but when I put it through Securify it gave me all kinds of errors. Is there anyplace I can find what I am looking for?
ThisIsCodeXpert
@ThisIsCodeXpert
@amazonmonkey1974 Take a look at this channel. It has many nice tutorials for beginner as well as intermediate learners : https://www.youtube.com/channel/UCb3Rrg2t4PZ59Sna497DUZA?sub_confirmation=1
Nicole Zhu
@nczhu

Hey everyone,
Here’s a technical walkthrough series for Ethernaut’s smart contract hacking puzzles. It’s been a good learning resource to dive deeper into the vulnerabilities of Solidity, i.e. a Turing complete language on the blockchain.

Thought I’d document my learning journey for public benefit here: https://hackernoon.com/ethernaut-lvl-1-walkthrough-how-to-abuse-the-fallback-function-118057b68b56

Deepakguru1990
@Deepakguru1990
Hi All. I am unable to find the accounts reflecting in remix(web3 provider), I am using ethjsonrpc from aws ethereum blockchain templates
Singh
@Nitishkumar3211
where Public key and private key generates . On blockchain or local wallet ?
Deepakguru1990
@Deepakguru1990
Hi All. I am unable to find the accounts reflecting in remix(web3 provider), I am using ethjsonrpc from aws ethereum blockchain templates
Deepakguru1990
@Deepakguru1990
Hi all
want to know about designing smart contracts
for a supply chain use case
ThisIsCodeXpert
@ThisIsCodeXpert
@Deepakguru1990 You can checkout this channel, it has many great tutorials : https://www.youtube.com/channel/UCb3Rrg2t4PZ59Sna497DUZA?sub_confirmation=1
Deepakguru1990
@Deepakguru1990
I have 4 actors and each perform similar functions like create asset, transfer asset, receive, reject
will it be a good design to have 4 contracts each for 1 actor
or i can have them as 2 contracts -> first contract between first actor and second actor(asset shape is different), second contract between second actor and the rest of actors in the chain(asset shape is different)
Deepakguru1990
@Deepakguru1990
Who performs mining in the private blockchain created using cloud providers?
ThisIsCodeXpert
@ThisIsCodeXpert
@Deepakguru1990 Please ask question on any one of the channel. Do not spam everywhere
Deepakguru1990
@Deepakguru1990
Sure. Couldn't find a suitable group, hence asked everywhere. Intention was to get the answer not to spam!!
Singh
@Nitishkumar3211
How blockchain maintain addresses collision. ? anyone knows ?
ABSoftech
@ABSoftech
I have made coding on cryptocurrency, in java. how can i enlist that in blockchain
Nicole Zhu
@nczhu

@sierra1bravo Hey Sierra, in general, you don't want to use "transfer" to move tokens around. Try using the approve+transferfrom combo, see why transfer opens you to security issues here: https://medium.com/coinmonks/ethernaut-lvl-15-naught-coin-walkthrough-how-to-abuse-erc20-tokens-and-bad-icos-6668b856a176. Transfer() was how a lot of ICOs got tokens permanently locked.

Try pasting your code into RemixIDE to get started with the least setup time: http://remix.ethereum.org/

Manish Ranjan
@bit-warrior
Hello guys please try http://blockaction.io/
Bringing web3 to browser
Sierra Bravo
@sierra1bravo
Thanks @nczhu. Will try as suggested.
dhitaishin
@dhitaishin
Hello
I am confused when i transfer ERC20 tokens from one account to other the fee is deducted from ETH account i want to the gas fee is apply direct from token account balance not from ETH balance.
blockchaintrainer
@blockchaintrainer
Hi Guys, I am a blockchain developer working on Bitcoin and other blockchains previously, Now I am planning to launch an huge ICO of my own publicly, I see there is lot of help available including on the website ethereum.org. I am looking to find the best and most efficient way to do this? Can some one please help me out?
Frankinvestor
@Frankinvestor
hello sir