Transaction not yet indexed

668eCbBkfB6FNx7MqfahZnuAmVRg7iBGaYXRcmpTReAGQ9ALwc4wQDwwkY8GunNqoEMc7TCQUVoo395dNzpcuk7r

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