Eth News and Links
PoW switch off (the Merge)
- Ropsten testnet upgrade to PoS estimated for June 8 (Terminal Total Difficulty 43531756765713534)
- Mainnet-shadow-fork-4 merge looked perfect, Erigon had unrelated sync issues
- Mainnet-shadow-fork-5 merge on May 19, equal validator split across execution & consensus layer clients
- Staking safely post-Merge requires client diversity for both consensus & execution layers
- Geth currently over 80% at the execution layer
Mainnet execution layer
- Latest core devs call video. Notes from Tim Beiko & Christine Kim:
- Mainnet-shadow-fork-4: empty blocks due to consensus clients asking for the candidate block too quickly
- Ropsten to be upgraded to PoS early June with permissionless beacon chain, not using Fork ID; Sepolia beacon chain to be permissioned
- Agreed on latest, finalized & safe JSON RPC block tags
- EIP discussions: EIP4938 (eth/67: removal of GetNodeData) and EIP5081 (expirable transaction)
- Nethermind v1.13.0: beta snap sync support, sync reduced from 24+ hours to 2 hours & download size cut from ~90GB to ~30GB
- Erigon v2022.05.03-alpha: more fixes to improve snapshot download speed
Proof of Stake consensus layer
- Updated consensus client diversity estimates: Prysm 48%, Lighthouse 23%, Teku 15% and Nimbus 8%
- Somer’s staker migration guides: migrate from Prysm to Nimbus
- Teku v22.5.0: epoch processing optimisations & fixes issue loading optimized BLST library on Windows
- Lodestar v0.36.0: security fix and proposer boost enabled by default
- Danksharding panel with Dankrad, Protolambda & Vitalik, moderated by Tim Beiko
- Danny Ryan: Lido over 1/3 of stakers is a centralization risk
EIPs/Standards
- Proposal for NFT sale of unused EIP numbers
- EIP5089: Principal token
- EIP5083: NFT token acceptance
- EIP5081: Expirable transaction
Layer2
- KuCoin supports USDC & USDT deposits on Optimism
- Censorship resistant bridges
- Polygon Hermez v2 deep dive
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Stuff for developers
- samczsun’s Signature Database: search function, error, event & name signatures
- Use optional access list to reduce gas costs reading multiple storage slots
- Thirdweb-deploy: deploy contracts using MetaMask or Gnosis Safe, dashboard to view deployments
- Blocknative Transaction Preview API simulate bundled transactions
- Sepolia testnet faucet
- OxPARC Ecne: verify ZK circuits
- 1inch’s cumulative merkle drop tool
Security
- Chainlink minimal value circuit breaker triggered for LUNA/USD, oracle reported LUNA at $0.107, Blizz Finance (Avalanche) drained, Venus Protocol (BNB chain) $13.5 million lost from borrowing at outdated price
- Balancer DoS vulnerability disclosed, double entry-point ERC20 tokens
Ecosystem
- Decentralized Society (DeSoc): ecosystem of accounts (Souls) holding revocable soulbound (non-transferrable) tokens for social identity, with community recovery
- Wallet devs call notes: discussions on batch/bundled transactions endpoint, support multiple wallet extensions and cross-wallet testing
- Ads on crypto websites such as Etherscan & Coingecko used in token approval attack
Enterprise
- Instagram testing sharing NFTs with selected creators & collectors
- Amazon Managed Blockchain supports running Goerli testnet nodes
- KFC Malaysia sending promo codes via Etherscan’s Blockscan Chat
- EY Blockchain Analyzer Reconciler: import enterprise records, reconcile off-chain records with on-chain transactions and track wallet balances
- S&P Global gave Compound Treasury B- credit rating
Application layer
- Maker vault used to finance Australian beef shipment
- Bancor v3: single-sided staking, impermanent loss protection, dual rewards, auto-compounding rewards, and composable single-sided pool tokens
- Sushi live on Optimism
- Element Finance open sourced research [Disclosure: Evan is advisor]
- Backed (NFT-backed loans) live on Optimism
- Gnosis Safe Transaction Simulation in transaction builder
- Karma: delegate from DAO contributor reputation leaderboard; [Disclosure: Starbloom portfolio]
- Hop using Sybil hunters to find Sybil airdrop attackers
- Reminder to check ENS expiry dates
- ETHPass: token gated events with tickets in Apple Wallet/Google Pay, scanning tickets can autoclaim POAPs
- Huddle01: token gated video calls live; beta
- Headline: decentralized publishing & newsletter platform
- OpenSea updated account verification and collection badging system
Job Listings
- Status Waku is hiring: Software & DevRel Engineer (Web)
- Ethereum Foundation need a People Operations Lead
- Ethereum Foundation seek a generalist ecosystem developer
- Trail of Bits Security Apprenticeship (3 months)
- Vac @ status are looking for protocol engineers
- Status are hiring engineers who focus on incentive design
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
Regulation/business/tokens
- US Treasury Secretary current scale of stablecoin market not a threat to US financial stability
- Germany’s tax guidance: sale of purchased Ether tax free after one year
- Polynya: sustainable blockchain checklist
- Azuki co-creator behind abandoned CryptoPhunks, Tendies and CryptoZunks NFT projects
General
- UST algorithmic stablecoin fell from peg, over 6 trillion Luna printed
- Coindesk names Do Kwon as co-founder of failed algorithmic stablecoin Basis Cash
- Meta scoping single wallet experience
- Discord API leaks private channel metadata: name, description, members list & activity data
Follow @WeekinEthNews to find out what the most clicked links are. Follow @evan_van_ness and @abcoathup to get most of the week’s news in real time.
Permalink for this week’s issue: https://weekinethereumnews.com/week-in-ethereum-news-may-14-2022
Dates of Note
Upcoming dates of note (new/changes in bold):
- May 17-20 – EY Global blockchain summit
- May 20 – US Fed CBDC discussion paper feedback deadline
- May 24 – ETH Staking QF Round ends
- Jun 8 – Ropsten testnet upgrades to PoS
- Jun 10 – Austin DeFi summit
- Jun 10-12 – ETHPrague
- Jun 20-23 – NFT.NYC
- Jun 24-26 – ETH NYC
- Jul 6-8 – ETHBarcelona
- Jul 8 – ETH Seattle summit
- Jul 19-21 – EthCC 5 (Paris)
- Aug 5-7 – ETH Seoul
- Aug 8-10 – ETHToronto
- Aug 11-14 – ETH LATAM (Buenos Aires)
- Aug 18-19 – Ethereum SP (São Paulo)
- Aug 19-21 – ETHMexicoCity
- Aug 27-28 – DeFi Security Summit (Stanford)
- Aug 28 – DeFi San Francisco summit
- Aug 29-31 – Science of Blockchain Conference (Stanford)
- Sep 1-4 – ETHWarsaw (hackathon & conference)
- Sep 6-9 – MCON 2 (Denver)
- Sep 12-14 – DappCon (Berlin)
- Oct 11-14 – Devcon 6 (Bogotá)
- Nov 4-6 – ETHSanFrancisco
- Dec 1-4 – ETHDownUnder (Sydney)
- Dec 2-4 – ETHTaipei
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