Transaction not yet indexed

668dbT97hNW1yW9pqAx6aizVhsABreC44B2YMvPV1swz1wTS21D2vg4WMt9NLSevw9xyFUnKdbgqaFXxhGLxr9Ai

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