How to issue your own token on Ethereum in less than 20 minutes.
By: Moritz Neto
Tags: ICO, Cryptocurrency, Ethereum, Token Sale, Token

Now let’s get started:

Open the contract you downloaded in your Text Editor.

Go to Line 3–15 and look at the comment section. Although this is a comment section, this will help you down the track. For me, 0Fucks was my first one :). Basically you send 0Fucks to someone when you don’t care.

Change Line 4 to the title of your Smart Contract

Change Line 6 to the Ropsten Ethereum address you created in MyEtherWallet

Change Line 7’s Symbol to your respective coin name (Keep it short)

Change Line 8 to the name of your token

Line 3 — 15

Next:

Go to Line 102 and change “FucksToken” to “(YourTokenName)

Do the same for Line 115

Go to Line 116 and change the symbol name, the same as the ones you did in the comment section

Do the same for Line 117

Change Line 120’s Address to be the same as the one you generated in MEW

Same goes for Line 121

For the decimals and total supply on Line 118 and 119, you can just leave it as it is however I’ll explain it just for visibility. On total supply there are actually a few considerations. First one is that the standard (and max) is 18 decimals, meaning that a coin can be splitted in 18 parts.

The second one is that let’s say for example you want to issue 100 tokens, on the total supply part you have to put 100 followed by the number of decimals that you choose.

Ex: If I want to emit 100 tokens, what I will put on total supply is: 100000000000000000000; and so it goes.

Lines 102–105

After that we are done with editing code. Yep, that was easyyyy. Now we are going to do some cool stuff…

Go to http://remix.ethereum.org/

In the browser/ballot.sol, paste the code you just edited! If something red comes up, there is something wrong in the code. If there is yellow warning it’s alright, let’s hope for the best.

Now Under Compile →Details →Choose the Token you are creating

Under ByteCode press the 📋button to copy the ByteCode to your clipboard —( Into this section, what may appear are different things on the ByteCode. What you have to copy is the “object” ByteCode, adding a 0x in the beginning. So you will have 0xByteCode.)

Remix Editor

Go to MEW where we will start to deploy the contract. Remember we want to be on the Ropsten Test Network so make sure the top right hand corner says

Navigate to the Contracts tab → Press Deploy Contract

Paste your ByteCode into the ByteCode box. Your gas limit should automatically update

Access your wallet by going into the Private Key → Enter your private key →Unlock your wallet

Now press Sign Transaction →Deploy Transaction

ATTENTION: This is the moment where you have to cross your fingers for the first time during a few seconds. 🤞

Click on the transaction tx or access https://ropsten.etherscan.io to check if the contract went through. If it didn’t, start again and try to figure it out what you got wrong. If it did, you are a basically Vitalik 2.0, be proud.😎

If everything works out, this is a sample image of what you should be seeing.

Now we are going to register this contract. To do that:

In the Overview Tab → Click on the Contract Address

Go to the Contract Code Tab → Click Verify and Publish

Nearly there… The following steps are really important. So look carefully. Basically what we are doing here is trying to guarantee that the code fits what you saying you are deploying and registering this on the network. FOREVER.

So if you commit mistakes, it will be wrong forever. What a friend told me that on the Blockchain:

Get it right once or get it wrong forever.

Now you have 5 things to do on this page.

Be sure that the contract address field corresponds to the contract address that you have just deployed. Remember contract address is different to the MEW address you created so make sure not to get them confused The contract name has to match the one in the code, in my case is this: contract FucksToken. This was on Line 102 in your code To check which version of the complier, go back to the remix page where you got the BYTECODE from and look at the URL, the complier version will be there. In most cases it should be: v0.4.19+commit.c4cbbb05.js , but you want to try updated ones if by any chance this doesn’t work. On Optimisation, choose No (We haven’t enable it before). On ENTER THE SOLIDITY CONTRACT CODE BELOW, copy the whole code from Remix, and paste in that area. NOT THE BYTECODE, but the code itself. Can also be copied from your text editor.

Now, leave the other fields in blank and click on Verify and Publish.

But be aware… This is the moment that you were waiting for… It is about to happen!

FINGERS CROSSED AGAIN FOR VITALIK’S SAKE. 🤞

The final boss…

The moment of truth…

Success!!!

If a success page come along with green checkmarks and stuff, you did it! You’ve made it, I’m proud of you, now you are a cypher punk, a part of the crypto movement. Yaaaaaaay!

If a red message comes along…try it again and see where you might have missed a step. I’m happy to help if you leave a comment below but remember Google is your best friend 😉

To confirm that it works, go to https://ropsten.etherscan.io/ and look into your MEW Address, not the contract one, but your public address. If you can see your coins there, now you can relax and live the crypto dream in peace! At least until the next BTC rally :)))))

To be able to send these tokens, you need to access your MEW account by Viewing Wallet Info →Accessing and putting in your private Key →Unlocking Wallet →Select the option Load Tokens. After that they will show up to be transferable.

Final Considerations:

You just made your own Cryptocurrency Token. This is the simplest way I have been able to put a token together. However, this is just the token creation process, it is not a crowd sale contract. I will upload another tutorial very shortly.

You’ve just unlocked some Blockchain superpowers and I hope this helped you become more interested and involved with the amazing space. But remember that with great powers come great responsibilities. I truly hope you use your ideas for good and don’t be another scam.

Leave any questions or comments in the section below and share with everyone if you are working on something interesting. The bitfwd community is always keen to help with cool and meaningful projects.