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MultiSig: Multiple Signatures

  • Jon Hodl 
What Is MultiSig?

What Is MultiSig?

Multisig, short for multiple signatures, is a security measure that requires multiple signatures in order to authorize and send a bitcoin transaction. It is a feature in bitcoin wallets in order to add an extra layer of security. This means that more than one person must sign off on the transaction before it can be completed. MultiSig can be used for a variety of purposes, but it is most commonly used as a security measure. By requiring multiple signatures, it makes it more difficult for attackers to launch a successful attack against a bitcoin wallet or address. It also helps to decentralize power, as no single person can approve a transaction on their own.

In a multisig setup, there are typically two types of parties: signers and cosigners. A signer is somebody who initiates a transaction, while a cosigner is somebody who needs to approve the transaction before it can go through.

In order for a transaction to be authorized, a certain number of signatures (m) out of the total number of signers and cosigners (n) is required. This number is typically set by the wallet provider. For example, a 2-of-3 multisig wallet would require two signatures out of three possible signers in order to authorize a transaction.

Why Use MultiSig?

Multisig provides an extra level of security since it requires multiple parties to authorize a transaction. This makes it much harder for somebody to compromise your private keys and steal your bitcoin since they would need to have access to multiple wallets in order to do so. Additionally, it can be used to create decentralized applications that are not controlled by any single party.

One of the most common use cases for multiple signatures is on the lightning network. The Lightning Network is a “second layer” payment protocol that operates on top of Bitcoin. It enables fast transactions between participating nodes and is one of the many ways that bitcoin is scaling.

MultiSig can also be used to create smart contracts. These are agreements that can be carried out automatically, without the need for a third party. This is possible because the terms of the contract are encoded into the blockchain. This means that once the conditions of the contract are met, the transaction will be automatically executed. Smart contracts can be used for a wide range of applications, such as escrow services, voting systems, and more.

If you’re looking for a multisig bitcoin wallet, there are a few different options available. Some popular wallets include Sparrow wallet, Electrum, Nunchuk and Blockstream Green.