Transaction not yet indexed

1256tEC1MkWz6UWgAskZDenZLiXjhw84RNfbzzteTQxHqa7bedDVzASwmVSsqRUD1moDRgrhhBq94aE3tXPPRdYH

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