How to securely contribute to VuePay Token Sale Event

Visit www.vuepay.co to contribute

3 min readOct 5, 2017

Our Token Sale starts on October 6th, 8:00 GMT and will last until CAP is sold (50,000 ETH) or November 20th at 5 PM GMT.

Our Token Sale will be a standard one so if you have participated on a Token sale before you will find it very straight forward. If not, please follow these instructions:

To participate the token sale you need an Ethereum wallet or an application where you hold the private keys. Private keys are needed to correctly interact with smart contract functions, like transferring tokens.

*We only accept Ether. If you hold Bitcoin or other ERC20 Tokens we recommend using ShapeShift to exchange them for ETH. A Youtube guide on using Shapeshift can be found here.

Trusted Source

Do not use any Ethereum address information posted on Social Media channels, even if they appear to be from www.vuepay.co(that includes not using information on any translated version of our site or posts). For security reasons the only trusted source for the Ethereum address to contribute ETH in the Token Sale will be available through: https://www.vuepay.co/

Ethereum Wallet

Do not send Ether directly from Cryptocurrency exchanges such as Coinbase or Kraken. You need a ERC20 Token compatible Ethereum Wallet (see below).

Participating the token sale

Buy ether in a cryptocurrency exchange. (https://www.buybitcoinworldwide.com/ethereum/buy/)
Transfer Ether to a compatible wallet (see below).
Send the Ether to our token sale address with correct data and gas limit values

Sending a Token Sale transaction

Token sale deposit transactions need to have non-default gas limit (a.k.a. transaction maximum gas). This is because token sale transactions are more complex than simple Ethereum transfer transactions. The default gas limits are too low to correctly perform a token sale deposit.

To participate an Ethereum token sale you need to fill your transaction with following details

Address — this is given to on the VuePay Token Sale Page using the Contribute button and filling out an information form, you can copy this address.For security reasons the only trusted source for the Ethereum address to contribute ETH in the Token Sale will be available through: https://www.vuepay.co/
Gas limit: Please raise to 250000 gas tells that this is a smart contract transaction and is more expensive than normal Ether transfer.
Gas Price: Leave at 25 gwei. Do not go above 50 or the transaction will be rejected.

Note: If you are using MyEtherWallet.com please double check your the gas limit field value after filling the data field. Do not use the +Advanced option.

Compatible wallets

The following wallets are known to be compatible with Ethereum tokens (ERC-20 standard):

MyEtherWallet (no download needed)
MetaMask (Firefox and Chrome browser addon)
Mist (Desktop)
Parity (Desktop)
imToken (iPhone)
imToken (Android)

Summary

Do not send any ETH from an exchange. Always send ETH to your own wallet first, and then contribute from there.
If you don’t know which wallet to use we recommend https://myetherwallet.com
Use only the Token Sale Address provided at https://www.vuepay.co/. No other source is valid.
Select a Gas Limit of 250000 or more.