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A non-validating notary receives inputs in the form of Corda StateRefs. What information can be reversed engineered from a StateRef and what additional information would an attacker need to be successful in doing so?

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You can deduce the following information from a StateRef:

  • That the transaction with identifier StateRef.id has at least StateRef.index outputs
  • That all the StateRefs with the same StateRef.id were produced by the same transaction
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