Bitcoin Developer: F2Pool may have started filtering OFAC-sanctioned transactions again

Bitget2025/01/17 12:57

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According to a blog post by Bitcoin developer b10c, in the past few weeks, b10c has detected 15 missing transactions from OFAC-sanctioned addresses distributed across 14 blocks. Of these, 11 blocks were mined by F2Pool and one each by SBI Crypto, ViaBTC and Foundry USA. After analyzing these blocks, b10c believes that F2Pool may have started filtering transactions sanctioned by the Office of Foreign Assets Control (OFAC) of the US Treasury Department again. However, since F2Pool is currently the only pool that might be filtering such transactions, it will not affect Bitcoin's censorship resistance ability. Previous reports showed that in November 2023, b10c found four F2Pool blocks filtering OFAC-sanctioned address transactions after which the founder of F2Pool admitted they were running a "transaction filter patch" at that time.

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