Validator set diversity refers to the breadth and distribution of entities operating validator nodes within a Proof-of-Stake blockchain network. This includes variation in geographical location, organizational affiliation, hardware specifications, and software implementations among validators. A diverse validator set reduces the risk of single points of failure, collusion, or censorship, thereby enhancing network resilience and decentralization. It is a critical measure of a blockchain’s security and resistance to attack.
Context
News often reports on efforts to improve validator set diversity in major Proof-of-Stake blockchains, discussing initiatives to encourage broader participation. Concerns about validator centralization frequently arise when a small number of entities control a large portion of the staked tokens. The level of validator set diversity is a key metric used to assess the decentralization and long-term security of a Proof-of-Stake network.
SPARC introduces a non-linear, tier-based reward mechanism for Proof-of-Stake, strategically incentivizing smaller operators to enhance network decentralization and security.
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