An example operation may include one or more of connecting, by a data aggregation node, to a blockchain configured to store data, configuring, by the data aggregation node, a transformation of the data, instantiating, by the data aggregation node, at least one rollup blockchain, transforming, by the data aggregation node, the data based on the configuration, executing, by the data aggregation node, a smart contract to populate the transformed data into the at least one rollup blockchain, and archiving the data on a data store outside of the blockchain.