The invention discloses a trust
evaluation data storage tracing method and
system based on a block chain technology, and particularly relates to the technical field of data
storage management, and the method comprises the following steps: recording trust
evaluation data in a block form based on the distributed storage characteristics of a block chain, automatic management of
data submission,
verification, storage and updating is realized by using an intelligent contract,
data authenticity and non-tampering are ensured, time stamps are added for data through a
timestamp function, a time-ordered operation chain is formed, a data tracing function is provided, an authorized user is allowed to inquire a
data source and historical operation records, and the user experience is improved. Based on
data access characteristics, a
storage area is dynamically adjusted, and efficient utilization and
optimal management of storage resources are achieved; according to the method, the storage position of data can be dynamically adjusted, hot data are stored in a high-performance
storage area, cold data are migrated to a low-cost
storage area, the access efficiency of high-
frequency data is guaranteed, and the storage cost is optimized.