Recent research conducted by teams from Florida Atlantic University and the University of Mississippi highlights the role of complete blocks in blockchain security, especially when dealing with potential nefarious actors, money launderers, and fraudsters. Their paper, titled "Bitcoin Block Size, Custody Security, and Price," examines historical events such as the Mt. Gox crash and cryptocurrency thefts from exchanges.
The central premise of the study revolves around the notion that individuals involved in illegal activities seek to expedite money laundering processes. The researchers suggest that the closer a block size is to its limit, the more likely the next transaction will be confirmed in a later block instead of the latest one. In scenarios where cybercriminals breach cryptocurrency exchanges or fraudulent operations are exposed, they aim to launder stolen Bitcoins quickly.
To validate their hypothesis, the researchers analyzed historical data from the Bitcoin blockchain and cryptocurrency exchange scam reports. They examined data from 2010 to 2021, creating a "completeness" score for the blocks as their benchmark.
With this benchmark in place, the team focused on two key metrics: the impact of block fill on Bitcoin's price and how block completeness serves as a deterrent to malicious actors. The study found that full Bitcoin blocks act as a deterrent to hackers and scammers because they signal network congestion. Additionally, they observed that complete blocks correlate with increased network security, leading to higher Bitcoin prices.
The researchers' findings indicated that block fills were 20% lower during cryptocurrency leaks or fraud incidents compared to an average day. This suggests that complete blocks play a vital role in discouraging malicious activities within the blockchain and are reflected in Bitcoin's price behavior.
