• The FOAM Map uses multiple smart contracts to enable a decentralized map without a central authority or single point of failure. 
  • Each time tokens are transferred between contracts there’s a small fee charged by the Ethereum network, called gas, that fluctuates depending on how busy the network is at that time. 
  • Approved FOAM and Voting Credit allow for your wallet to transfer to 2 different smart contracts. Doing this in advance helps to avoid more expensive gas and allows for fewer MetaMask confirmations and fewer chances that something can go wrong.
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