EthHub Weekly #133: Kucoin Hacked for $150mn, State of EIP-1559, eth2 Spardina launch, Optimism launches testnet, Blocknative's mempool explorer and exploring the Ethereum mempool

<p class="p1">On the EthHub Weekly Recap we cover topics from the <a href="https://ethhub.substack.com/"><span class= "s1">EthHub Weekly Newsletter</span></a>. In this episode we discuss Kucoin getting hacked and losing $150mn in crypto, Tim Beiko gives an update on the state of EIP-1559, eth2 Spardina launch, Optimism launched their testnet for optimistic rollups, Blocknative launches a mempool explorer and Sam Sun walks us through the Ethereum mempool with a great story.</p>