ConstitutionDAO was a decentralized autonomous organization (DAO) created in November 2021 with the goal of purchasing an original copy of the United States Constitution. It was formed by a group of cryptocurrency enthusiasts and investors who were motivated by the idea of using blockchain technology to facilitate the collective ownership and management of rare assets. ConstitutionDAO conducted a fundraising campaign in Ether cryptocurrency, raising $47 million. However, it was unsuccessful in its bid to purchase the Constitution at a Sotheby's auction, ultimately losing to a higher bid of $43.2 million. Following this, ConstitutionDAO was disbanded​​​​.

The primary use of ConstitutionDAO was to pool resources for the collective purchase and management of rare assets, specifically an original copy of the U.S. Constitution. Participants in the project purchased $PEOPLE tokens, the native token of ConstitutionDAO, which granted them voting rights and a fractional ownership in the asset the DAO aimed to acquire. The governance structure of ConstitutionDAO was community-driven, allowing token holders to propose and vote on decisions regarding the management of the assets held by the DAO. This decision-making process was based on a liquid democracy model, designed to enhance participation and efficiency in governance​​.

ConstitutionDAO was initiated by Trent Griffin, a well-known cryptocurrency investor, and was subsequently developed by a group of cryptocurrency enthusiasts and investors. The idea quickly gained traction within the cryptocurrency community, leading to the formation of the DAO and its first fundraising round in November 2021. The collective effort aimed to leverage blockchain technology for transparent and decentralized ownership of historically significant assets​​.