Alibaba Group Holding Limited
Method, apparatus, and system for service data processing and verification

Abstract:

Techniques for detecting data tampering are described. One example method includes identifying particular data associated with a service system; generating fingerprint data as a result of executing a fingerprint function on the particular data; storing the fingerprint data in a blockchain maintained by a blockchain network; storing the particular data in a storage device in the service system; after storing the fingerprint data to the blockchain and storing the particular data in the storage device: identifying a request to verify that the particular data stored in the storage device has not been modified since it was stored; generating verification fingerprint data as a result of executing the fingerprint function on the particular data stored in the storage device; determining that the verification fingerprint data matches the fingerprint data stored; and in response, determining that the particular data stored in the storage device has not been modified since it was stored.