Transaction not yet indexed

666wkFATmV8LndM8SLkK4uYAmxMgaC8iy3zc3RYsPGMQCFqNh7q3busqSPsYfbQVbUprBHd5tXUd7WmFBXF6ZR5n

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