Definition. The closing price of BTC in USD, aggregated from both centralised and decentralised exchanges. Strictly immutable data points are available in the point-in-time variant of this metric.

Technical. Prices are calculated using a VWAP-like methodology with outlier detection to mitigate the impact of erroneous or anomalous trades on the final composite price. Data is available with up to 10-minute resolution and usually arrives with 3-minute latency once the interval has ended. Prices may occasionally change as late-reported data from individual exchanges is incorporated.