Transaction not yet indexed

668dE966cx1QYPbseraqLFnDPHpnciPm5sLQLDXpG7WFB9EsuEc6EUMGXwMDUB8p6kDPsyUBY3tc8Ej1dZ7YCdaN

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