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What is the difference between score and cumulative weight (of a transaction), in IOTA white paper?

AstronautID
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1 Answers1

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Let x denote our transaction.

The score is backward-looking = weight of x + sum of weights of all transactions approved by our transaction x

The cumulative weight is forward-looking = weight of x + sum of weights of all transactions that directly or indirectly approve our transaction x

Phil-ZXX
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