Flashbots build over 82% relay blocks, adding to Ethereum centralization By Cointelegraph

Following the completion of The Merge upgrade, transitioned into a proof-of-stake (PoS) consensus mechanism, helping the blockchain become energy efficient and secure. However, mining data reveals Ethereum’s heavy reliance on Flashbots — a single server — for building blocks, raising concerns over a single point of failure for the ecosystem.

Flashbots is a centralized entity dedicated to transparent and efficient Maximal Extractable Value (MEV) extraction, which acts as a relay for delivering Ethereum blocks. Data from mevboost.org shows that there are six active relays currently delivering at least one block in Ethereum, namely Flashbots, BloXroute Max Profit, BloXroute Ethical, BloXroute Regulated, Blocknative and Eden.