A transaction worth in excess of $1 billion was processed on the 6th of September with a fee rate of 480 satoshis per byte transferred. This fee rate is far in excess of the current fee estimates of 23 satoshis per byte for a transaction to be quickly picked from the memory pool. The transaction was included in block number 593,468 which was appended by mining pool Poolin.
Source: CoinTelegraph
