Transaction not yet indexed

6638qBEABrpBvbdjtsZiie6bCBb923sVyzsx2ZtG3r6L6HfcSJy69ffGHfSnhcKmcwZgu4RnZpF7ZcbdSetfJM7r

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