The Mushino Index Price is derived from an average of real time price data from a collection of Spot exchanges. The Spot exchanges that contribute to the average can be seen below. To prevent price manipulation, 75% of the prices are treated as outliers, and removed from the average. The indices are updated at a fixed interval - currently every second.
Spot Exchanges that currently contribute to the Mushino Indices:
Example (Mushino BTC/USD index)
The Mushino BTC/USD index is made up from the BTC/USD prices of the above Spot Exchanges. To mitigate price manipulation, the top 4 outliers and bottom 4 outliers are removed from the average.
If one of the Spot Exchange does not have a BTC/USD pair (as is the case for Binance), or the pair has low volume, the exchange is simply excluded from the average.