This Week in Custody #44

This Week in Custody is a newsletter covering technical and narrative developments in digital asset custody written for wallet engineers, digital asset operators, and security engineers.

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• Scaling Robinhood Crypto Systems

• Nasdaq is working on custody for institutional clients.

• Paradigm covers the recent hardware trends in the zkp space.

• MPCH announces a recent fundraising round to build MPC wallets.

• Gemini partners with Betterment.

• Anchorage announces partnership with Aptos.

• Robinhood debuts its non-custodial wallet.

• Coinbase Cloud launches Node.

• Stripe supports USDC payouts.

• Tornado Cash is back on GitHub as a public archive.

• Circle partners with Robinhood to support USDC.

• Blowfish fundraising announcement. They are building a system to detect malicious transactions in real time.

• MetaMask launches a portfolio application.

• Telegram launches a P2P exchange with its @wallet bot.

• Binance accounting error causes windfall for Helium holders.

• Polkadot Roadmap Roundup

• The Zcash network is still being spammed from an actor broadcasting transactions containing large numbers of shielded outputs in each block. A cost estimate of the spam attack is $10/day.

• Aleo Workshop is a guide for building applications on Aleo.

• Applying “valves” to understanding flow control in Lightning Network.

• The differences in smart contract development between Move and Rust.

• Codex32 is an error-correcting code that can be computed without the use of electronic computers.

• Fuzzing smart contracts.

• Exploiting the Profanity Flaw.

• BlockSec covers replay attacks happening on EthPoW.

• Consensys covers IPFS vulnerabilities.

• zkBridge: Trustless Cross-chain Bridges Made Practical

• Vitalik on what a “Layer 3” might look like.

• Lightning Labs announces the alpha release of Taro.

• The Road to BDK 1.0

• BlockSec releases Phalcon: a transaction explorer for DeFi.

• Trezor Suite adds coin control for Bitcoin.

• A new tool for estimating the ABI for unverified contracts on Ethereum.

• Flashbots has a new MEV-boost Dashboard.

• Mockthereum: a new Ethereum mock node.

• Zero knowledge modules in Rust to manage, compute and verify RLN zkSNARK proofs and RLN primitives.

• Practically-exploitable Cryptographic Vulnerabilities in Matrix

• Tweet thread on threat models against MPC & TSS.

• A set of recent dYdX npm packages are compromised.

• The story of how a large sum of Bitcoin was stolen from the US government.

• Purism introduces PureBoot Basic.

• [Cosmos SDK] v0.46.2

• [Algorand] Algorand 3.10.0

• [Solana] Mainnet - v1.10.40

• [Avalanche] Banff - Elastic Subnets

• [Osmosis] Osmosis v12.1.0

Thanks for reading. Have a great weekend!