The New Hampshire Business Finance Authority plans to issue municipal bonds backed by Bitcoin, with a total value of approximately $100 million. These bonds have received a Ba2 rating from Moody's Investors Service, which is two notches below investment grade. The principal and interest of the bonds will be repaid through the liquidation of Bitcoin collateral, potentially offering additional returns if Bitcoin prices rise. The bonds include price-triggered liquidation clauses to ensure repayment, and the debt is not supported by state credit or tax revenues.