Computer-implemented method and system

The present disclosure relates to a computer-implemented method for validating a blockchain stored representation of a data set. The method comprises the step of obtaining a dataset reference to an on-chain dataset, the on-chain dataset being stored on a blockchain and comprising transaction-carrying data, where each transaction-carrying data comprises data indicative of an event stored in an off-chain dataset. The method includes traversing the on-chain dataset, and for each transaction-carrying data in the on-chain dataset: determining that data indicative of an event in the off-chain dataset is associated with an event in the off-chain dataset, and verifying that the on-chain dataset and the off-chain dataset correspond to each other. 本公开涉及一种用于验证数据集的区块链存储的表示的计算机实现的方法。该方法包括获得对链上数据集的数据集引用的步骤，链上数据集存储在区块链上并且包括携带交易的数据，其中，每个携带交易的数据包括指示存储在链下数据集中的事件的数据。该方法包括遍历链上数据集，并且对于链上数据集中的每个携带交易的数据：确定指示链下数据集中的事件的数据与链下数据集中的事件相关联，以及验证链上数据集和链下数据集彼此对应。