> For the complete documentation index, see [llms.txt](https://tokens-economy.gitbook.io/consensus/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tokens-economy.gitbook.io/consensus/chain-based-pbft-and-bft-based-proof-of-stake/practical-byzantine-fault-tolerance.md).

# Practical Byzantine Fault Tolerance

PBFT works in asynchronous environments like the Internet and incorporates several important optimizations that improve the response time of previous algorithms by more than an order of magnitude.

#### Used in

Hyperledger Fabric

#### pros

* High transaction throughput

  **Cons**

  Centralized/permissioned

  **Read more**
* [whitepaper](http://pmg.csail.mit.edu/papers/osdi99.pdf)