Transaction not yet indexed

668dE3HMWGrhkuBvbrbJfRQucut2UnxJGJNbx8XxB5yLh34UYgG9jb6GNTQb7JjagHUBcmoRg3d3v5CdKMSC5j67

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