I think this is the wrong thread for this topic, in the future please feel free to start a new post. Please be aware that currently we are in the “stress test” period so what Skyler wrote is correct. I simply added a clarification that by the time we launch the incentivized testnet, likely in a month or earlier, the credits (tokens) you farm will have a value on mainnet.
For the current stage you are correct, tokens farmed during “stress test” period don’t have any value so you just need one to qualify for the early adopter rewards. However, I would suggest to farm a few blocks for safety. See below for more info on why.