Week in Ethereum News
January 29, 2022

Eth News and Links

Mainnet execution layer

Proof of Stake consensus layer

  • PoS implementers call video. Notes from Ben Edgington
    • PoW switch off target of June based on difficulty bomb, focus is on getting switch off right, difficulty bomb can be delayed
    • Kiln (Kintsugi v2) testnet mid-Feb, Engine API & optimistic sync updates
    • Aim for client releases for public testnets mid-March
  • Latest What’s New in Eth2
  • consensus-specs v1.1.9: update for Engine API, full optimistic sync spec, minor refactors & new tests
  • Latest Message Driven fork choice Balancing Attack
  • Vitalik: single-slot proposer/builder separation using attesters as distributed availability oracle, alternative to two-slot PBS
  • Teku v22.1.1: key management API, avoid timeouts in event stream, sync committee optimizations & bug fixes
  • Lighthouse v2.1.1: fix for missed attestations with InsufficientPeers error
  • Eth-wizard v0.8.0: update clients with a single click
  • Vitalik: paths to single-slot finality (~16 seconds), via super-committees or supporting large number of attesters

PoW switch off



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Stuff for developers


  • OpenSea uncanceled listings used to buy NFTs below market rates, listings valid until canceled by a transaction, listing cancels are being front run
  • Multichain bridge post mortem, relied on a tokens permit function reverting but WETH doesn’t have permit & the fallback function doesn’t revert
  • Qubit Ethereum BSC Bridge $80 million exploit, insufficient checks allowed withdraw of tokens on BSC using a 0 ETH deposit with malicious data
  • ZORA fixed price sale vulnerability, seller could increase price & front run purchase, no funds lost, fix uses explicit buy price
  • Austin Williams: two contracts from BoringSolidity when imported together allow ETH to be drained; safe contracts may become unsafe when combined 


  • Ethereum.org removed all uses of ETH2 terminology, Ethereum is execution layer + consensus layer, renaming doesn’t change Ethereum roadmap
  • Blockscan chat, off-chain instant messaging, Etherscan address view shows unread message count, not currently end-to-end encrypted, beta

Application layer

  • Aave v3 on testnets (Rinkeby, Arbitrum Rinkeby and Optimism Kovan)
  • Opyn Squeeth crab strategy live, for sideways market (narrow range price fluctuation)
  • Rari Capital Fuse live on Arbitrum
  • Maple Loans v2, refinancing & liquidation tools for capital efficiency and reduced gas costs
  • Pika Protocol perpetual swap exchange live on Optimism, gradual rollout with increasing cap
  • Syndicate Web3 Investment Clubs, each club can have 99 members, invite-only, can’t charge carry, public beta 
  • Risk Harbor v2 live on mainnet, includes levered vaults, AMM & risk engine
  • Suggestion to replace USDC blacklist with admin function to freeze balances, save 2100 gas for each check
  • ZORA v3: NFT marketplace protocol adds instant royalties, finder’s fee, non-custodial listings and fee governance right as an NFT
  • Reservoir: NFT order book protocol
  • MoonPay NFT Checkout supports card purchases
  • OpenSea reversed 50 item limit for their free minting tool after backlash, 80% of items created are plagiarized works, fake collections or spam
  • ENS voted to set expired name start price premium to $100k to prevent names being snapped up by bots, premium decays to $0 over 28 days
  • on-chain art: NFT showcase, rated by how data is stored and rendered

Job Listings

Reach developers experienced with Ethereum.  $600 for four issues (~75 character limit), payable in ETH/DAI/USDC to abcoathup.eth on mainnet, Arbitrum or Optimism.  Questions? abcoathup at-gmail



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