Rabbit Hole Recap: Week of 2020.06.29
7/2/2020 · 82 min · transcript via mlx
Tags
Key topics
— Liquid UTXO expiration incident exposed centralization risk: 870 BTC moved into emergency 2-of-3 multisig controlled entirely by Blockstream during 40-minute window, highlighting vulnerability to government pressure despite Blockstream's security claims.
— Lightning Network vulnerability "Flood & Loot" discovered: coordinated channel closures cause on-chain congestion, enabling attackers to steal funds via expired timelocks; mitigation options remain incomplete and may introduce other tradeoffs.
— 10 major software releases shipped this week: HWI 1.1.2, Electrum 4.0-beta1, BTCPay 1.0.5.0, Zeus 0.3.0-rc1, Polar 1.0.1, Blue Wallet 5.4.4, JoinMarket 0.6.3.1, Tails 4.8, Tor Browser 9.5.1, and Fully Noded with wallet recovery added.
— Australian tax authority began issuing warning letters to cryptocurrency holders; US and other countries expected to follow similar enforcement patterns.
— Mining hardware lifecycles extended: S9 ASICs remain profitable 4+ years post-release, creating quasi-proof-of-stake dynamics that reduce 51% attack incentives.
— Strike app launched public beta by Jack Mallers: debit-card-to-Lightning payment processor limited to four US states, enabling demonetized creators to accept payments while bypassing payment processors.
Market & price signals
— Bitcoin price $9,068 at block 637,372; difficulty adjustment flat (0.00% change), rare occurrence outside early network genesis. Lightning Network public capacity 966.13 BTC with Tor-only nodes at 45.5%, near all-time high for this show. Whirlpool mixing saw large whale pool (500M sats) hit new all-time highs in prior three months, then fell sharply this month; smaller pools increased. Mempool 25,980 transactions; fee-to-reward ratio 8.63%, up from ~4–5% prior week.
Actionable insights
— If running a Lightning routing node, increase timelock parameters immediately to mitigate Flood & Loot attack surface; monitor channel partner reputation and consider smaller trusted peer sets despite centralization trade-offs.
— Update all Bitcoin software (HWI, Electrum, BTCPay, Tails, Tor Browser, etc.) this week; Electrum 4.0-beta1 and BTCPay 1.0.5.0 are production-ready and include security and UX fixes; Samurai Wallet users on Android should force-close app periodically as Tor reliability remains inconsistent.
— Bitcoin remains superior collateral for loans versus gold (verified via node instantly vs. gilded copper fraud in $2.8B Chinese loan case); prioritize multisig custody and use your own node for lending collateral verification.
Episode sponsorships
Paid placements mentioned in this episode. BTC Pods is not sponsored by or affiliated with these advertisers. Links are included so you can find offers mentioned on the show.
— Unchained Capital provides 2-of-3 multisig vault custody where you control two keys and they hold one, plus Bitcoin-collateralized loans, IRAs, and inheritance solutions. Visit unchained-capital.com/vaults to set up a vault and receive three months free of Saifedean Ammous' The Bitcoin Standard Research Bulletin.
— Cash App lets you buy, sell, send, and receive Bitcoin with integrated Lightning Network payments for fast, cheap transactions and automatic DCA stacking with zero fees on buys over $2,000; withdraw on-chain or to Lightning 24/7 to your own node or hardware wallet. For a limited time, new Cash App customers can get $21 added to their balance by using code TFTC10 when you sign up, and send at least $5 to a friend in the first two weeks; terms apply. Bitcoin services by Block, Inc. See Bitcoin disclosures at https://cash.app/legal/podcast.