Incentive models in blockchain are systems designed to encourage participants to contribute to the network by rewarding them for their efforts. For example, miners are incentivized to validate transactions and add new blocks to the blockchain by earning cryptocurrency rewards or transaction fees. These rewards motivate people to spend resources like computing power and electricity to help secure and maintain the network. Different blockchains use different incentive models, such as Proof of Work (PoW), where miners earn rewards for solving complex puzzles, or Proof of Stake (PoS), where participants are rewarded for holding and staking their cryptocurrency to support the network. These models ensure that the blockchain remains secure, decentralized, and operational.