4 ms·

I alluded to this problem in my comment. This is the crux of the oracle-problem. There is no way to reliably (key word here: reliably) take non-cryptographical

• dnautics 8y ago
  To some degree the block chain is not 100% reliable, there is a vanishing but nonzero likelihood that you are not on the correct chain of maximal likelihood. You can calculate this likelihood and feel settled that your ledger transaction is "secure enough" after some time has passed. One could imagine a trusted oracle system that operates on similar "eventually vanishing lack of confidence" principle if the oracle's actions are generally, independently verifiable. It will of course be less scalable than the blockchain itself as a generalization.