DIN has become popular recently. A tutorial was released a long time ago.

Project Introduction
DIN is a data intelligence network that provides a set of AI-native digital asset tools and real-time data infrastructure. The network will enable users to produce a variety of AI-native digital assets, including trading information flows, trading strategies, trading support robots, entertainment, education, and social intelligence assistants. By verifying asset ownership through blockchain, DIN provides creators with a fair, self-custodial, trustless ecosystem.
DIN has launched the Data Intelligence Network (DIN) service and opened registration on July 5. The service proposes an AI native digital asset rights confirmation solution based on Crypto. Relying on AI and big data infrastructure, it allows users to use on-chain and off-chain data sets, knowledge bases, and artificial intelligence to create various types of AI native digital assets. These digital assets include transaction information flows, transaction strategies, transaction assistance robots, as well as entertainment, education, and social types of intelligent assistants; at the same time, the network uses blockchain to confirm the rights of AI native digital assets.