Transaction not yet indexed

421NS4yEv8Ei1jksYNitBPLBv2dqqP2vybA2m6hU8o1fB2tzhPT6LmaeHgJTAja35jSTKexsh3qzNNScREW2PyL2

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