PANews reported on March 12 that Bubblemaps, an on-chain data visualization platform, published an article on the X platform to disclose Sybil detection in the BMT airdrop: "30% of the rankings are robots trying to take advantage of airdrops. These robots have been identified and removed through cluster analysis. This cluster of 30 associated addresses has been removed. They ranked high on the rankings and should have received a $20,000 BMT reward. However, these addresses are connected to each other through SOL transfers, and their application activities are abnormally frequent, showing non-human behavior characteristics. By filtering all similar clusters, it is ensured that the airdrop activities can be accurately distributed to real Bubblemaps users."