Source: iStock/Ivan-balvanMajor US-based crypto investment company Grayscale's ethereum (ETH) inflows increased yesterday, while the firm claims the methodology for valuing this asset "is opaque and changing." Grayscale Ethereum Trust (GETH) got 'fatter' by another batch of the world's second coin by market capitalization on February 3, adding ETH 47,000 (USD 77m) - making it the