Transaction not yet indexed

668RrEtJaDmKgMXDdxfhCaCkg4FdAzR8K5pyYbAyMcCsswc8Ut4ZzQ8AA22NHURSghmcEzpwuNy3LyoSH147k53G

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