Towards Trustworthy IoT: A Blockchain-Edge Computing Hybrid System with Proof-of-Contribution Mechanism

Algorithm 1

creEvaluation() ABI.

	Input: address, type, timestamp, hash
	Output: result (update, reward)
Require: result.update ← False, result.reward ← False.
Create a timestamp array timestampArray[].
timestampArray ← timQuery (address)
get Cs (address, timestampArray) using (2)
create an Entry Contract instance entry
if entry.accControl(address, Cs) is captured then
result.update ← True
end if
while true do
check the transaction receipt
if the block containing the behavior is generated then
get Ps(Cs) using (5)
create a transaction(address, Ps)
launch the transaction.
result.reward ← True
break.
end if
end while
return result (update, reward)