Transaction not yet indexed

668d3dKB7ZpWLauQhe5yerifbYfaaKSFDLiY5tEDXVE8KJTpvsQVaxqsD8cShkVJec4v71zQikPYDVmvwpPA8e42

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