Transaction not yet indexed

53i2NpZSUiAdDJ8q5HLGMVktix95MwW5sd7ptSapbaBGrkw3ag9cPfAHqTEXVUxo1c2MYcePC3ZcKUqGvuXpPAr6

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