Bolt Shares, is the governance tokens of the ecosystem. These tokens follow a Seigniorage Shares system that maintains a peg by auctioning coins for shares and shares for coins. After each epoch (8 hours) the protocol mints BTD and distributes it proportionally to all BTS holders who have staked their BTS in the Boardroom. But it only does so when the TWAP (time-weighted average price) of BTD is above $1.01. So in essence BTS stakers gain 'free' BTD every epoch. As a governance token BTS grants holders voting rights and, subsequently, the ability to suggest improvements to the protocol or the ecosystem.