#Caldera Caldera (ERA) is a project on the Binance HODLer Airdrops program, which rewards BNB holders with token airdrops based on historical snapshots of their BNB Simple Earn asset or BNB On-Chain Yield balances. Users can subscribe to BNB Simple Earn Products (Flexible or Locked Products) or BNB On-Chain Yield to automatically enjoy HODLer Airdrops rewards.