Multi-Signature Wallet

A multi-sig wallet requiring multiple owner approvals before executing transactions. Demonstrates arrays, nested mappings, and multi-party authorization.

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multisig/multisig.sol 
// Source file not found

Overview

The multi-sig wallet requires N of M owners to approve before a transaction executes. This pattern is essential for:

  • Treasury management
  • DAO governance
  • Team-controlled deployment keys

Key concepts demonstrated:

  • Dynamic arrays: Owner list management
  • Nested mappings: Confirmation tracking per (transaction, owner) pair
  • Transaction lifecycle: Submit, confirm, execute pattern
  • Multi-party access control: Multiple authorized signers