比特币合并挖矿的增长

Abstract: In this report we examine merge mining on the Bitcoin blockchain. In the last year or so, on average each Bitcoin block mined contains around two commitment hashes from other blockchains somewhere in the coinbase transaction, indicating that most miners are conducting multiple forms of merge mining. Currently over 90% of the Bitcoin hashrate appears to be engaging in merge mining of one type or another. There has been considerable growth in merge mining over the last few years and this may be of limited concern to some, due to the small potential security risks and increased mining centralisation pressure. Most of these risks could be mitigated away by blind merge mining, if these newer schemes are adopted.