Each server operator chooses a
Unique Node List (UNL), a list of validators they believe will not conspire to defraud them. A number of publishers offer a UNL that a server operator can choose to use. Currently, three publishers are known:
- Ripple
- The XRP Ledger Foundation
- Coil
Today, the XRP Ledger Foundation (XRPLF) announced its plan to publish an updated UNL at 0900 UTC Oct 7, 2021. Please see
their blog post here for details.