Txindex=1: how to recognise the blockchain with this option? This might be a dumb question: I started the Bitcoin daemon for an initial blockchain download. It immediately started downloading, I edited the Bitcoin.conf file with txindex=1. Stopped and restarted the daemon. How can I be sure the blockchain has txindex=1 correctly set? Should I reminded with the command line Bitcoind -reindex

How can I understand “looking” at a blockchain (day I downloaded from a torrent) that has txindex=1? Thanks
You can check the debug logs (might require -debug flag) and see if it is indexing transactions:

$ tail -f ~/.bitcoin/debug.log


You can also try to get a transaction by txid, and if it returns transaction data, then the blockchain has been indexed for transactions (might have to wait for sync to complete):

$ bitcoin-cli getrawtransaction {txid}