How to sign a message from Coinbase(for those who use Coinbase and don't know how):
1. Sign up for a Coinbase account
2. Generate a new address(should be done automatically)
3. Go to tools and click detail(next to your address)
4. Click on the sign a message hyperlink.
5. Type in a message and place the address, message, and signature (from top to bottom).
----Begin signed message------
address: 1LrFYes3ktxw3HnvgNE6k1k4wq9XCoH6X8
message: Hi, this is thesame12 of sythe.org today is November 17, 2016.
signature: IB1dAGNYeQZHmjGsAZt5IaZ1leHNLnRVY2qLpDHEnJBdJd0mT4d7dxLhlmW7GgNc7NWLZarqMlJjKwNXXy6pxyg=
----End signed message------
verified
1. Sign up for a Coinbase account
2. Generate a new address(should be done automatically)
3. Go to tools and click detail(next to your address)
4. Click on the sign a message hyperlink.
5. Type in a message and place the address, message, and signature (from top to bottom).
----Begin signed message------
address: 1LrFYes3ktxw3HnvgNE6k1k4wq9XCoH6X8
message: Hi, this is thesame12 of sythe.org today is November 17, 2016.
signature: IB1dAGNYeQZHmjGsAZt5IaZ1leHNLnRVY2qLpDHEnJBdJd0mT4d7dxLhlmW7GgNc7NWLZarqMlJjKwNXXy6pxyg=
----End signed message------
verified




