  Enterprises have been attracted by the capability of blockchains to provide a
single source of truth for workloads that span companies, geographies, and
clouds while retaining the independence of each party's IT operations. However,
so far production applications have remained rare, stymied by technical
limitations of existing blockchain technologies and challenges with their
integration into enterprises' IT systems. In this paper, we collect
enterprises' requirements on distributed ledgers for data sharing and
integration from a technical perspective, argue that they are not sufficiently
addressed by available blockchain frameworks, and propose a novel distributed
ledger design that is "serverless", i.e., built on cloud-native resources. We
evaluate its qualitative and quantitative properties and give evidence that
enterprises already heavily reliant on cloud service providers would consider
such an approach acceptable, particularly if it offers ease of deployment, low
transactional cost structure, and a combination of latency and scalability
aligned with real-time IT application needs.
