There are two ways bonds can be registered:
Principal-only: The bonds themselves (the principal part that gets repaid a decade or so down the line, when the bonds mature) are registered in the name, address, zodiac sign, and so on of the buyer. However, the coupons, or stream of interest payments, are just in bearer form. Whoever has 'em owns 'em. These relics are no longer issued.
Fully registered: Both the bond itself and the stream of interest payments are registered, tracked and known by...
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