Arweave has the same mechanics as Bitcoin: It is based on financial incentives. While Bitcoin miners calculate hashes to get transaction fees, Arweave miners s

Arweave has the same mechanics as Bitcoin: It is based on financial incentives. While Bitcoin miners calculate hashes to get transaction fees, Arweave miners store data to get those fees paid upfront for storage. So the question "what happens in they shut down" is similar to asking "what happens if Bitcoin shuts down?". It is not a single party the suddenly can decide to "shut down".