Also, to avoid name fraud, DAS prohibits the use of certain character sets in combination with each other. For example, the Russian character set cannot be used in combination with the English character set. For the DAS system,
satоshi.bit is not a legitimate account because the letters
о in it are Russian characters and the other characters are English characters. But
satоshi.bit is a legitimate account because all characters in it are English characters. This effectively avoids frauds that are difficult to recognize by ordinary users.