Bitcoin developer 0xB10C says mining pools are deliberately filtering out US-sanctioned Bitcoin addresses.
According to the blog post shared by 0xB10C, in the last few weeks, some addresses on the sanctions list of the Office of Foreign Assets Control (OFAC) in the USA. Six transactions were made but these are on the network not included in blocks.
Blocks that did not include transactions were mined by ViaBTC, Foundry USA and F2Pool. According to analysis by 0xB10C, some of these transactions were not added to the blocks mined by ViaBTC and Foundry USA.miners can perform more profitable transactions for themselves instead of these transactions. It is caused by adding it to the block.
in all three blocks he excavated on October 5, 12, and 22. a sanctioned action The F2Pool located deliberately filtered these transactions emphasized. The following analysis was included in the blog:
“The transaction sanctioned in block 810727 had a better fee rate than the transaction included in the block because it was 3 vBytes smaller. An extra 3 vBytes of space in the block would not result in a change in the total transaction fee, but the Bitcoin Core algorithm higher wage rate would choose the procedure.”
Looking at four transactions made from OFAC-sanctioned addresses “F2Pool filters transactions” The developer said, raising the following question:
“Four OFAC-sanctioned transactions missing from F2Pool’s blocks were likely filtered out. This raises the question of why F2Pool, a pool of Asian origin, was the first pool to start filtering transactions based on OFAC sanctions in the US.”