BLOCKCHAIN-BASED DIGITAL DATA EXCHANGE

Disclosed is blockchain-based digital data exchange comprising example data publisher endpoint devices and example data subscriber endpoint systems. The example data publisher endpoint devices disclosed herein include a datamart publisher client to transmit a message to a data exchange to publish availability of data to be accessed from data storage associated with the data publisher endpoint device, and in response to a request from a data subscriber endpoint system, initiate a transaction to provide the data subscriber endpoint system with access to the data. Disclosed example data publisherendpoint devices also include a blockchain client to publish a record of the transaction to a blockchain network when the transaction is validated by the datamart publisher client, the record to be included in a blockchain implemented by the blockchain network. 本文公开了包括示例数据发布者端点设备和示例数据订阅者端点系统的示例基于区块链的数字数据交换。本文所公开的示例数据发布者端点设备包括数据集市发布者客户端，用于：将消息发送到数据交换，以发布要从与数据发布者端点设备相关联的数据存储访问的数据的可用性；以及响应于来自数据订阅者端点系统的请求，发起事务以向数据订阅者端点系统提供对数