| 摘要 |
PROBLEM TO BE SOLVED: To provide a system and method for verifying a real-time time stamp created by a digital time stamp device.SOLUTION: A providing side 2 uses a digital time stamp device to affix a real-time digital time stamp 30 on digital content 3, and records a digital content location as a sealing position 32 and network address information. The digital content 3, the real-time digital time stamp 30, the sealing position 32 and the network address information are made into one set and stored as reliable digital content 4. A receiving side acquires the reliable digital content 3 from an arbitrary side, accesses a providing device, and confirms that the reliable digital content 3 has the same real-time digital time stamp 30 and sealing position 32 as the providing side 2 does.SELECTED DRAWING: Figure 1 |
