How to Purchase Optimism (OP) Using Sponge (OLD) ($SPONGE) in Indonesia

To buy Optimism using Sponge (OLD) in Indonesia, first, find a cryptocurrency exchange that supports the OP/$SPONGE trading pair. Create an account, verify your identity, and deposit your $SPONGE into your exchange wallet. Locate the OP/$SPONGE pair on the trading platform and place an order to exchange your Sponge (OLD) for Optimism. If the OP/$SPONGE pair is unavailable, you can first exchange Sponge (OLD) for a stablecoin like Tether (USDT) or an Indonesian fiat currency like IDR, then trade that for Optimism. Be mindful of potential exchange fees, which vary by platform and can affect the total cost of your transaction.