Showing 3 of 3
A small physical device that keeps your keys offline and signs transactions without exposing them. Suited to savings you rarely touch, not to buying coffee.
A safety deposit box. Excellent for the deeds to your house, inconvenient for bus fare.
A fixed-length fingerprint of some data. Change one character of the input and the output changes completely, which is how a chain of blocks can prove nothing has been quietly edited.
The check digit on an account number, doing the same job at an enormously larger scale.
A wallet on an internet-connected device. Convenient, and the right tool for money you actually spend, which is why the sensible pattern is a small hot balance and a cold store for the rest.
The cash in your pocket versus the money in your account. Nobody carries their savings in their wallet.
All 3 terms shown.
