‘Concerning precedent’ — bloXroute Labs’ MEV relays to reject OFAC blocks

One of the largest producers of censorship-resistant blocks on Ethereum has made a complete u-turn, announcing it will start censoring OFAC-sanctioned blocks across all of its MEV relays in compliance with local laws.

The firm, bloXroute Labs — which has produced at least 400,000 Ethereum blocks from its two leading Maximal Extraction Value (MEV) relays — made the announcement of its policy change on Dec. 18 in a post on X (formerly Twitter), noting: 

“Effective immediately, all bloXroute relays will reject block bids if they contain OFAC transactions.”

An “OFAC transaction,” as described by bloXroute Labs, is any that interacts with a wallet that has been sanctioned by the United States Office of Foreign Asset Control, or OFAC. 

All of bloXroute Labs’ relays will be affected, including the “bloXroute Max Profit” relay, the second largest censorship-resistant MEV relay with over 380,000 blocks produced since the Ethereum Merge on Sept. 15, 2022, according to data shared with Cointelegraph by Australian blockchain development firm Labrys.

Despite the news, bloXroute Labs says it is still committed to keeping Ethereum decentralized and permissionless while operating within the bounds of the law.

announcement:

bloXroute MEV Relays to reject blocks w/ OFAC tx

effective immediately, all bloXroute relays will reject block bids if they contain OFAC transactions (Tx which interact with addresses appearing on the OFAC SDN list)

We remain committed to supporting ETH… pic.twitter.com/9kEdAy82yf

— bloXroute Labs (@bloXrouteLabs) December 18, 2023

However, some members of the Ethereum community claim that stricter compliance measures are now limiting pathways to credible…