Transaction not yet indexed

53ExouknkGQkAATHza6oArRtNaSKqaC5jJSd6uf7t9coHiHBMpU4cvo2mgHBr5mFesW8ETMddPi4CdqH3rfsNeZm

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