Transaction not yet indexed

ex6f3MhkJmhUMxso2YPwwAgY4kWtJB7YoGiC7YZQkYFcLGiSe76KdchboTfndTh2KUvwpACHEZfNucTBKzyHiAU

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.