BloXrout, a blockchain infrastructure firm that provides DeFi tools, said that its relays will start rejecting transactions containing addresses on a U.S. sanctions list.

"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)," bloXroute wrote Monday on X. The change is expected to have "no effect" on the network, "except reducing our own win-rate." 

Transaction censorship by bloXroute should not affect Ethereum's "unstoppable, permissionless and anti-fragile" nature, the company said. "Because it's decentralized and globally distributed, and not easily affected by any single entity, even if it has the best networking tech."

The announcement has been met with some …