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2.1 Payment v2 Environment Setup

HashNut Payment v2 is a web3-based payment system supporting ETH, BSC, Tron, and Polygon chains.

Browser Requirements​

Install browser plugins before using Payment v2:

  • EVM chains (ETH, BSC, Polygon): MetaMask plugin
  • Tron: TronLink plugin
  • Browsers: Chrome, Firefox, Safari, Edge (latest versions)

2.2 Login Options

Payment v2 offers two login methods.

Step 1: Visit Login Page​

Go to: https://testnet.hashnut.io/login

Login Page

Step 2: Connect Wallet​

Click "Connect Crypto Wallet" tab (default selection)

Click "Connect Wallet" button

Step 3: Select Network​

Choose your network:

  • Ethereum (Mainnet/Testnet)
  • BSC (Binance Smart Chain)
  • Polygon (Matic Network)
  • TRON (TRX Network)

Step 4: Sign Message​

Your wallet will prompt for message signing.

Click "Sign" to authenticate.

Step 5: Access Dashboard​

You'll be redirected to the onboarding flow.

Option B: Email Login​

Step 1: Switch to Email Tab​

Click "Email Login" tab

Step 2: Enter Credentials​

Enter:

  • Business email address
  • Password

Click "Continue with Email"

Step 3: Complete Authentication​

System validates credentials and redirects to onboarding flow.

Troubleshooting​

Wallet Issues​

  • "Wallet Not Detected": Install and enable browser extension
  • "Wrong Network": Switch to correct network in wallet
  • "Transaction Failed": Check gas balance and network congestion

Solutions​

  • Refresh page and retry
  • Clear browser cache
  • Update wallet extension
  • Check network connectivity

Next Steps​

After login:

  1. Create Smart Contract - Deploy payment contract
  2. Set Up API Keys - Configure API access
  3. Configure Address Pool - Set up payment addresses
  4. Test Payment Flow - Verify setup works