Transaction not yet indexed

53C6mdhDCuwwU9owMJ1X64esTSPbXgLGaHr4qiDLgxGBrPbbV8wDffeS4CFhmCfNA7dFGbtQDDcNdypV4LKq15uv

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