Proof of Stake (PoS)

Proof of Stake (PoS) is a cryptographic proof mechanism for securing blockchains, gaiting the right to add blocks, and preventing Sybil attacks. Although often considered a consensus protocol in itself, Proof of Stake, and other similar proof mechanisms, do not determine consensus themselves, although they may help facilitate the process. Under a Proof of Stake system, Staking Nodes contribute stake, typically denominated in the blockchain's native asset, for the right to participate in the block production process. There are many variants and sub-variants of Proof of Stake. One of the most significant distinguishing factors is the support or exclusion of delegated staking from passive participants to Staking Nodes.