Who distributes the Matrix?

Could you please clarify who is responsible for distributing the Matrix, and if there is a specific entity or group that oversees this process? Is it a decentralized network, a centralized authority, or a combination of both? Additionally, what are the mechanisms in place to ensure the fair and equitable distribution of the Matrix, and how are decisions regarding distribution made? It would be helpful to understand the overall structure and governance model behind the distribution process.