To create an account on the blockchain, it costs STEEM tokens. When you create an account through Steemit.com, Steemit Inc. is supplying the tokens to pay the account creation fee. In order to prevent users from abusing the paid-for signup and creating multiple accounts, we need to be able to verify that each user is only signing up for one account.
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Testing Bump.
Also, you can use google voice for #'s.