"bc1qexamplebtcwallet1234567890", "Ethereum (ETH)" => "0xExampleEthereumWallet1234567890abcdef", "USDT (TRC20)" => "TExampleUSDTTRC20Wallet1234567890", "BNB (BEP20)" => "0xExampleBNBBEP20Wallet1234567890" ]; // Remote payment verification endpoint $external_payment_link = "https://vault.aetheriumxmarkets.com/pay.php"; ?>