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I've found that tx.hash is not defined in contracts, is there a way to get or calculate the hash of the tx ? And if not, What is the reason for that?

Is there a pattern to store information about a specific tx ? Thanks

  • From the comments in the selected answer it should be possible, but it is not implemented. Perhaps someone can write a EIP for that. – Ismael Sep 25 '17 at 4:46