Guide to a Successful Wanchain Token Contribution

Guide to a Successful Wanchain Token Contribution

1. Check if your address is whitelisted Make sure you use the wallet address you provided during the whitelist process. The wallet must be one where you control the private key. Do not use an address from an exchange or you will not get the ERC20 tokens after the sale closes. Wallet addresses that are not on the whitelist will be rejected. Enter your wallet address at https://wanchain.org/whitelist to check if your address is whitelisted. Check which whitelist you are on. Gold or Silver. Gold - the gold phase will start October 3rd, 2017 at 16:00 UTC. Gold whitelist members can contribute with a guaranteed cap of 6.8 ETH for 24 hours. There is no rush in this phase. All enlisted contributions will be accepted. After the 24 hour period, you will be able to participate in the silver phase as described below. Silver - the silver phase will start October 4th, 2017 at 16:00 UTC. During this time, both gold and silver whitelist members can start to contribute on a first come, first served basis with a cap of 65 ETH per transaction. There is no contribution limit per address.

2. Find the smart contract address Go to the website and find the smart contract address. The smart contract address is on https://wanchain.org/tokensale. 1. Click on the Contribute to crowdsale button. 2. Read and accept the 3 terms and conditions by checking the boxes. 3. Click the OK button. 4. The smart contract address will appear.

3. Verify the smart contract address There are 3 ways to verify the address. Watch the video Open the video on the website where you get the address - https://wanchain.org/tokensale The video will show Jack Lu and Dustin Byington. Verify their pictures on https://wanchain.org/about Jack will write the first 4 and last 4 digits of the smart contract address during the video. Make sure the smart contract address on the video matches the one on the website. Verify the address on Github Go to the Wanchain Github. https://github.com/wanchain /token-sale Find the Smart Contract address and verify it is the same as on the website. Verify the address on EtherScan. Go to EtherScan, https://etherscan.io/ Enter the smart contract address in the search field. The correct smart contract name is Wancoin.eth. Verify the smart contract name and address. Do not search for any other contract names. All other Wanxxxx style names are scam smart contracts. Wanchain.eth is fake.

4. Prepare the transaction Make sure there is enough ETH in the wallet. There must be enough ETH in the wallet to cover the contribution plus the transaction fee for the Ethereum network. Do not send the exact amount of ETH that is in your wallet. Open your wallet. If you are using MyEtherWallet. See the MyEtherWallet tutorial on slide 10. If you are using Parity Ethereum Wallet, see the Parity Wallet tutorial on slide 14. If you are using another wallet use the process on the following slides.

5. Input the transaction. 1. Enter the smart contract address in the address field. Make sure you have verified the address 3 or 4 ways. 2. Enter the Gas Limit (if available in your wallet). A gas limit of 120,000 is recommended and does not need to be changed. Anything higher will not help the timing of the smart contract execution or affect your ability to contribute or allow you to beat someone else in the race to purchase. The gas limit is the amount of fuel in the gas tank. There needs to be enough for the contract to execute completely. A limit prevents an unlimited amount of ETH from being removed from the wallet during smart contract execution. Only the amount used by the contract is charged as a fee to the node, and the balance is returned to your wallet. A failed transaction will use the entire gas limit at the price you entered, so be sure your contract parameters are valid and sent at the correct times. The contribution amount will not be removed. Too low a gas limit will also cause the transaction to fail during the execution. All gas will be used if this happens, but the contribution will not be removed.

5. Input the transaction. 3. Enter the Gas Price (if available in your wallet). The Gas Price limit in the silver phase is 50 GWEI. Any transaction over 50 GWEI will be rejected and all your gas will be lost. We recommend the default or higher up to 50. The gas price may affect the execution time of your contribution in the silver phase. Higher gas prices may be mined first by the Ethereum network. 4. Enter the amount you want to contribute. In the gold phase, the max contribution is 6.8 ETH. Only 6.8 ETH and below will be deducted from the wallet. If a higher contribution is sent, remaining portion above 6.8 ETH will be left in your wallet. Make sure you have enough ETH in your wallet to cover the Ethereum fee. In the silver phase, the max contribution per transaction is 65 ETH. Any transaction over 65 ETH will be totally rejected. Make sure you have enough ETH in your wallet to cover the Ethereum fee.

6. Generate and Submit the transaction. Each wallet does this differently. Be familiar with your wallet capabilities before you submit. If the transaction has all the valid parameters and is allowed by the smart contract, the ETH you contributed, plus the transaction fees, will be deducted from your wallet balance. If the transaction is not valid or does not meet the smart contract criteria, the contribution amount will not be deducted from your wallet balance. The transaction fees will be deducted from your wallet balance.

7. After the ICO ends When the ICO ends, you will receive the temporary ETH20 tokens in your wallet. The ICO will end when all tokens are purchased, or when the ICO time limit runs out, whichever comes first. Keep the wallet secure and do not transfer the tokens to another wallet that is not owned by you or not under your control. Only tokens that are from the original purchase and still in the original wallet or another wallet controlled by the original owner can be redeemed for the permanent Wancoin when the Wanchain 1.0 goes online in the November/December timeframe. Do not purchase or trade the temporary ERC20 tokens on any exchange or with any other person.

MyEtherWallet Instruction Step 1: Activate your wallet Choose ETH network Choose a way to unlock your wallet

MyEtherWallet Instruction Step 2: Input the transaction for your contribution Copy the address from Wanchain.org Maximum gas price < 50 Gwei Input amount of your contribution 0.1< the amount < 65 ETH Recommended gas limit>120,000

MyEtherWallet Instruction Step 3: Send transaction If you confirm all above mentioned, click buttons below

MyEtherWallet Instruction Step 4: Confirm transaction Click here and your transaction will not be cancelled

Parity Instruction Step 1: Open your wallet Click here to open your account

Parity Instruction Step 2: Start transaction Click here to prepare transaction

Parity Instruction Step 3: Input the transaction for your contribution Copy the address from Wanchain.org Input amount of your contribution 0.1< the amount < 65 ETH Choose advanced setting Click next

Parity Instruction Step 4: Input the gas price and gas limit Recommended gas limit>120,000 Maximum gas price < 50,000,000,000 Click here to send transaction

Parity Instruction Step 5: Send transaction to ETH mainnet Input your password and confirm transaction finally

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