After living for 30 days, GD automatically converts into USD. Every time you spend it, GD's Lifetime resets back to 30 days. This is how we enforce the peg. It

After living for 30 days, GD automatically converts into USD. Every time you spend it, GD's Lifetime resets back to 30 days. This is how we enforce the peg. It is the key innovation of Gresham Dollar.