Eth News and Links
Eth1
Notes from the latest stateless ethereum call. Witness format and the data retrieval problem
Eth2
Nimbus client update. discv5, BLS sigs, lightweight stack traces
Rewards and penalties in eth2
Layer2
Loopring launches zk-rollup exchange doing 100 tx per second (with 2000 possible as the relayer gets optimized). Due to snark prover optimizations, it costs just 0.01 cents (ie, $0.000124) per trade
PlasmaLeap is switching to rollups
Stuff for developers
Making Solidity stack traces and console.log more useful with a JSON-RPC interface to connect to Buidler EVM from wallets and front ends
A linked list implementation in Solidity
Sokt: a library for managing multiple Solidity versions for Java or Kotlin
Writing upgradeable contracts in OpenZeppelin tutorial
Dapp starter kit using Buidler + Waffle + TypeChain + Vue (TypeScript)
tx2uml generates a UML sequence diagram of all the contract calls, even in big txs
Gas stipends, the 1/64 rule, contract calls, and the insufficient gas griefing attack
Solfuzz: assertion checker for Solidity contracts using gray box fuzzing
gnark: fast groth16 snark verification library in Go
Ecosystem
All the EthDenver submissions
Taylor Monahan’s DeFi and Risk essay
Enterprise
Hyperledger Besu v1.4 - better tx signing, better APIs, better sync
Governance, DAOs, and standards
ERC2537: BLS12-381 curve operations
ERC2539: BLS12-377 curve operations
ERC2542 add TXGASLIMIT, CALLGASLIMIT, TXGASREFUND opcodes
ERC2541: EY SW6-Bis curve operations
ERC2535: Diamond standard for upgradeable contracts
ERC2547: composable multiclass token
EIP2544: ENS Wildcard resolution
EIP2538: Anti-ProgPoW statement from community members
It seems that when the DAG hits 4GB that a decent amount of hashpower will be knocked offline, both ASIC and GPU
Compound announces a governance token (with delegated voting!) to control all parts of the protocol. I bet this will be widely emulated.
Application layer
A postmortem on the iearn.finance trades that had tongues wagging this week
Zora: a marketplace for Unisocks-style sales, from Saint Frame
Nori: a marketplace for carbon removal, and how it fixes the problems with carbon offsets
If you didn’t play Ethernal’s multi-user dungeon alpha release, here’s how it went
Melon Terminal v2, a new frontend for Melon to go with Melon v1.1 adding assets and Uniswap/0x v3
Creepts, a tower defense tournament on Rinkeby testnet
Due to sponsors, PoolTogether is higher EV than just holding cDai/cUSDC. Much higher variance of course.
PoolTogether tickets are now tokenized, here’s how to get a free one
Tokens/Business/Regulation
SEC charges Steven Seagal with touting unregistered securities offering
A winery is selling tokenized wine on OpenSea. It’s live now. If you want to support this newsletter, here’s a referral link to buy fancy French wine.
General
Geokeys: key recovery system through location and password
It appears that Huobi/Binance powered up their customers’ STEEM in order to participate in a TRON attack on the Steem chain. DPOS in action.
ApexE3 launches a beta of advanced tools for retail crypto traders
Dates of Note
Upcoming dates of note (new in bold):
Mar 3-5 - EthCC (Paris)
Mar 14 - Augur v1 cutoff
Mar 29-Apr4 - EthLagos
Apr 3-6 - NonCon (Vienna)
Apr 13 - Deadline to apply for 50k euro for blockchain startups in Europe
Apr 24-26 - EthTurin
Apr 29-30 - SoliditySummit (Berlin)
May 7 - SmartCon0 (NYC)
May 8-9 - Ethereal Summit (NYC)
May 15-17 - ETHNYC
May 15 - EthBarcelona R&D workshop
Thank you, ConsenSys
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