This is the current ranking for block producers on the FIO network.

These rankings are generated by measuring performance, and participation in maintaining the network as measured by the fio-bp-vote utility. Maintenance includes updating fees to keep pricing at a reasonable level, participating in contract updates, and a series of maintenance calls that optimize state or trigger reward payouts

Three criteria negatively affect ranking.
 ▸ Slow CPU, currently this is defined by an average time to execute a transaction longer than 5,000µs. Producer CPU time is viewable on the FIO stats site.
 ▸ Never having claimed rewards results in a score of -100, since this indicates that the producer is not likely active.
 ▸ Finally having no votes is an indicator that a producer is not active, and results in a score of -200, but if a registered producer has neither claimed or received votes they are not considered at all

These rankings are used by two proxies: proxy@blockpane (voting for Top 21 by rank,) and vote@blockpane (voting for Top 15 by rank.) Votes are calculated at least once a day. In the case that a block producer is missing full rounds, their votes are withdrawn. The rankings shown on this page include all registered producers. This does not represent the list used by the @blockpane proxy voters, there is additional criteria that 1) the producers have listed publicly available API and P2P endpoints in the fio.mainnet list. 2) Those nodes are functional according to the FIO health dashboard.