Transaction not yet indexed

21b6kXquNFMS12KTCaeZf583vTrEF4Vz2xwRTxmQnncL3bBnS41HpT6eE28RvsKquAFoaV8k9GyEhvyJYPv8j152

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