Fees charged for processing transactions on the Bitcoin (CRYPTO: BTC) network have been on the rise in the last two years, providing a more sustainable source of income for a sector whose margins are narrowing. What happened: Transaction fees now account for more than 7% of the miners’ total earnings, dramatically up from just 1% two years ago, according to Ki Young Ju, CEO of on-chain analytics firm CryptoQuant. In fact, on May 5, fees constituted more than 22% of the total mining revenue. “This trend has persisted for the last four weeks and could potentially strengthen the network’s fundame…
