Transaction not yet indexed

668AkSr12efUW7Zvry68Hzt5X7arFzGgkvcUVipsTxLwJCJUfaJbnFyfvb2gb99cwG4tgfUMcqGr5vBV7oYrZaBk

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