US Patent 10181953 Trusted data verification

Electronically signed data is persistently stored in data storage. After the passage of time, the data may be accessed and presented to a trusted entity for verification of the data. The trusted entity may have access to secret information used to sign the data. The trusted entity may use the secret information to verify an electronic signature of the data. One or more actions may be taken based at least in part on a response provided by the verification system.