Bonds in short: Bolt Bonds help bring the price of BTD back up if it falls under $1.00. When BTD is under $1.00, BTB can be purchased for BTD at a discount (Bond price = BTD TWAP * BTD TWAP). When BTD is above $1.01. BTB can be redeemed for BTD 1 to 1. Purchasing BTB burns BTD, reducing supply.