Fig 1 - uploaded by Babatunde Ojetunde
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Source publication
Mobile payment system in a disaster area have the potential to provide electronic transactions for people purchasing recovery goods like foodstuffs, clothes, and medicine. Conversely, to enable transactions in a disaster area, current payment systems need communication infrastructures (such as wired networks and cellular networks) which may be ruin...
Contexts in source publication
Context 1
... monitor signs on the combination of hash value, GPS coordinates, timestamp, and a new event (e.g., spending an e-coin); the monitor then sends the block back to the endorser. In this way, all past events of the endorser are recorded to form an event chain (see Figure 1), which can be verified by any user. An endorser exchanges a hello message with neighboring monitor nodes periodically to add a new event to the event chain. ...
Context 2
... user keeps the event chain as their transaction log. When a new event is created, a new block is linked to the previous event chain, as shown in Figure 1. The previous block and the entire log of the present transaction event are signed and forwarded to the monitor. ...
Context 3
... monitor signs on the combination of hash value, GPS coordinates, timestamp, and a new event (e.g., spending an e-coin); the monitor then sends the block back to the endorser. In this way, all past events of the endorser are recorded to form an event chain (see Figure 1), which can be verified by any user. An endorser exchanges a hello message with neighboring monitor nodes periodically to add a new event to the event chain. ...
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