| 摘要 |
<p>Systems and mehods for electronic postmarking of location data are provided. Electronic postmarking of location data (S.20) includes generating a hash value corresponding to merged data (S.30). Electronic postmarking further includes generating an electronic postmark data structure (S.40) comprising the hash value and a date/time stamp. The electronic postmarking data structure (S.40) may further include a digital signature.</p> |
