> For the complete documentation index, see [llms.txt](https://davidjosearaujo.gitbook.io/online-courses/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://davidjosearaujo.gitbook.io/online-courses/blockchain-security/consensus-algorithm-security/proof-of-stake/choosing-the-block-creator.md).

# Choosing the block creator

**The probability of being selected as the block creator is proportional to the percentage of state cryptocurrency in an account.** Some variants have a threshold on the amount of power controlled by a single account to prevent centralization.

However, pseudo-anonymity allows users to create multiple accounts and distribute their cryptocurrency to defeat the cap. **The selection of the block creator is done using a pseudo-random algorithm that takes into account the previous block hash and user stakes.**

The algorithm ensures a level of randomness to prevent gaming the system while maintaining decentralization. There are **two main categories of proof of stake** algorithms: **fully randomized** and **coin age-based** selection. The transition from proof of work to proof of stake can be challenging to design and implement. Ethereum, for example, has faced delays in implementing proof of stake.