On-Chain Commit & Challenge Period Sample Clauses

On-Chain Commit & Challenge Period. At any time, a node can submit a signed final state of a closed off-chain payment channel. The sequence number of the channel allows the nodes to retrieve the money asynchronously. The node can submit a state that happened after the latest submit without providing the details of the actual time that it happened. Every time the on-chain contract receives a request, it verifies the signed states and updates its sequence number to the highest that received. The on-chain smart contract uses a Xxxxxx-Sum-Tree [11], which has the sum of the payments and the hash value. The sum value is used as a validation condition along with the hash value. This condition makes it possible for auditing the sum of the payments. Each payment adds to the overall sum, and if it exceeds the allowed range, the payment is invalid, and the other node can claim the insurance money. In our system, we further extend the validation condition with the sequence numbers. Reporting a state with a higher sequence number accumulates the changes of the previous states. Finally, the sensor node can activate the exit function by submitting a signed final state. This action restricts further submission and starts the challenge period. The other node can submit a transaction with a higher sequence number value to claim the insurance money. As each transaction is signed, it is not disputable.
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