| 摘要 |
Disclosed are a system, method and article of manufacture for are disclosed. A first relationship is created between a first node comprising a first commodity and a second node comprising a second commodity. The second commodity is of a greater or equal value to the first commodity. The first relationship comprises an obligation of the first node to provide the first commodity to the second node in the event of a trade. A second relationship is created between the second node and a third node comprising a third commodity. The third commodity is of a greater or equal value to the second commodity. The second relationship comprises an obligation of the first node to provide the first commodity to the second node in the event of the trade. The trade is initiated by creating a third relationship between the third node and the first node.
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