Odaily News According to mempool.space data, the transaction fee of Bitcoin network has soared to more than 300 satoshis/byte, with medium priority temporarily reported at 322 satoshis/byte and high priority temporarily reported at 503 satoshis/byte. The reason is that the new rune MEMENTO•MORI deployed by Ordinals founder casey will be minted at block height 868186. The total amount of this rune is 100 million, with 50% reserved.