Consensus Participation Costs
Consensus participation costs encompass the economic and technical requirements for an entity to become an active participant in a blockchain validation or consensus process. This includes the minimum capital required for staking, the costs of maintaining high-availability hardware, and the opportunity costs of locking assets.
In the domain of protocol physics, these costs act as a barrier to entry that balances the network's security with its accessibility. If participation costs are too high, the network risks centralizing around large institutional players; if they are too low, the network may become susceptible to cheap attacks.
Understanding these costs is essential for modeling the economic sustainability of a protocol and predicting how the validator set will evolve over different market cycles and liquidity conditions.