The DOT token serves three distinct purposes: governance over the network, staking and bonding. Polkadot token holders have complete control over the protocol. All privileges, which on other platforms are exclusive to miners, will be given to the Relay Chain participants _DOT holders_. Game theory incentivizes token holders to behave in honest ways. It regulates that good actors are rewarded by this mechanism whilst bad actors will lose their stake in the network, ensuring the network security. In addition, new parachains are added by bonding tokens. Outdated or non-useful parachains are removed by removing bonded tokens. This is a form of proof of stake.