Hi everybody
I am toying a bit with the json API from blockchain.info. When looking at some transactions I note this tx_index which is always the same for outputs, and different for each input of one tx. It is clear that this references the utx.
But where does this tx_index come from I wonder? Is it inside the blockchain or is it some blockchain.info specific indexing sitting in their index database?
Sincerely
It is blockchain.info's internal tx database. It is not inside the blockchain itself.