Multi-signature wallets

We will start with analogies. A multi-signature wallet is like a video-game lobby, where the game will only start when each player is ready to go; or like a vault with high security where passwords are needed from more than one manager; or a joint bank account, where signatures are needed from more than one account holder. Now, you have an idea of what a multi-signature wallet is. It's basically a type of wallet that needs more than two signatures to access the funds on a multi-signature address. Let's have a look at the following visual representation:

Multi-signature is not a new technology just for Ethereum. It existed ...

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