The Bitcoin block size limit is a parameter in the Bitcoin protocol that limits the size of Bitcoin blocks, and, therefore, the number of transactions that can be confirmed on the network approximately every 10 minutes. Although Bitcoin launched without this parameter, Satoshi Nakamoto added a 1 megabyte block size limit back when he was…
Bitcoin, the world’s first decentralized digital currency, is attracting attention across the globe. When acknowledging that it is also the first borderless, apolitical form of money in history, it’s hard to avoid the topic of whether it can be used legally. It’s worth noting that no matter who says you can’t use bitcoin, its decentralized…
Bitcoin is not entirely anonymous. In reality, it is pseudonymous because each user has a public address that theoretically could be traced back to an IP address or exchange account (and by proxy, an actual identity) through proper network analysis. So instead, a better question is, to what extent is Bitcoin anonymous? It is anonymous in the sense that…
In this section, we build upon Obscuro’s security analysis performed on Coin-Join, CoinShuffle, CoinParty, Xim, Mixcoin, Blindcoin, and TumbleBit in [13]. We expand on their academically proposed Bitcoin mixer comparison by performing the same analysis on the five mixing services included in this study. Coin Theft The five mixers in the study do not have…
Bitcoin mixers, or crypto tumblers, are services offering the ability to obfuscate user’s funds. Figure 3.1 depicts the general functionality of a mixer with three users and the mixing operator. Each user sends their Bitcoin into the service and is returned another user’s input to a different address. This output has a completely different transaction…
