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.
News
NYDIG acquires Bottlepay.
Bitcoin
A new set of test vectors for BIP341 (Taproot) for wallets has been added.
A guide to creating a testnet Taproot wallet is shared on the bitcoin-dev mailing list.
Wallet of Satoshi announces over 2 million LN payments have been processed with its wallet.
LND has a newly tagged v0.14.0-beta release candidate. Release notes are packed with amazing work.
Trezor shares their first Taproot transaction.
A CoinJoin transaction involving three parties is negotiated over the Lightning Network.
Paper studies the comparative analysis of routing algorithms in each popular Lightning Network client.
Laolu shares his notes on the LN Summit 2021 on the lightning-dev mailing list.
BitMEX blog on LN channel jamming.
Ethereum
The Ethereum Foundation is hosting a series of bounties for zero knowledge hash functions.
This repo showcases an application of zero knowledge for NFTs.
Unfortunately, there has been a common occurrence of bad security hygiene in the new cohort of crypto holders that entered the market following the NFTs boom. As a result, there are vulnerabilities and phishing attempts targeted at NFT holders. See this recent attempt targeting OpenSea users.
A new STARKs tutorial for Python users.
Security
ShiftSecurity writes a post on whether air gapped machines make for more secure end-user custody devices. Worthwhile read!
Report from Google on protecting your software supply chain.
New paper analyzes transaction graphs.
Security advisory for Rustc.
Article on the booming market for phishing bots. There are a bunch of automated social engineering attacks being executed conveniently with Telegram bots.
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