FairFX

on DLT FX rates for any currency

Smart Contract API returns $FX_n$ and $FX_d$ with:

FX of given currency to default DLT currency represented as a fraction: $FX_n/FX_d$

• ccy is subjective: return 0/0
• ccy is objective: return current value derived from connector
• objective is defined as the set of ccys that have a connector installed
• connectors can be added/removed (theoretically by governance)
• connectors call on-DLT sources (e.g. DEXs for a current FX rate)
• connectors can have arbitrary complexity, including liquidity requirements or choices of metric (bid-ask middle, TWAP, etc.)

base currency is the default energy currency of the DLT