Multisig Guide using specter and bitcoin core

- 1 Coldcard
- 1 CoboVault
- 1 paper wallet

guide: https://btcguide.github.io/
release thread: https://twitter.com/mflaxman/status/1301605083969392641

Umbrel v0.2.9 released

- LND v0.11
- iOS Tor browser fix
- Backup status shown

https://github.com/getumbrel/umbrel/releases/tag/v0.2.9

Rudefox Burrow v0.0.5 released

blog: https://medium.com/@bjdweck/initial-release-of-rudefox-burrow-2718049ac157
download: https://git.rudefox.io/explore/repos
quick start guide: https://www.rudefox.io/burrow/quick-start.html

Ministry of Nodes: Specter Desktop + Coldcard Windows Guide

> An easy way to use a hardware wallet on Windows with two pieces of software - Bitcoin Core and Specter Desktop.

youtube: https://youtu.be/4koKF2MDXtk

LN Markets investment round

> LN Markets, a crypto derivatives exchange built on top of Bitcoin’s Lightning Network, has raised an undisclosed sum of money in a pre-seed round.

> The round saw participation from crypto exchange Bitfinex and investment firms Arcane Crypto and Fulgur Ventures.

original: https://www.theblockcrypto.com/linked/77137/bitfinex-invests-ln-markets-derivatives-bitcoin-lightning-network
archive: https://archive.vn/IEwDs

Chainalysis 2020 Global Crypto Adoption Index

> To do this, we weighted our index formula to measure cryptocurrency activity while also accounting for each country’s population and economy size. The intention is to highlight the countries where the most residents have moved the biggest share of their financial activity to cryptocurrency.

original: https://blog.chainalysis.com/reports/2020-global-cryptocurrency-adoption-index-2020
archive: https://archive.vn/Wg10l

Bitcoin Optech #114

- protocol for making routable coinswaps
- re-delegate absurd fee checking from mempool to clients
- infrastructure projects changes

original: https://bitcoinops.org/en/newsletters/2020/09/09/
archive: https://archive.vn/X3p6D

CVE-2018-17145: Bitcoin Inventory Out-of-Memory Denial-of-Service Attack

- Doesn't appear to have been exploited but could have been used to steal funds.
- Vulnerability introduced in Nov 2017.
- Discovered in June 2018.
- July 2018 release of Bitcoin Core v0.16.2 included fix.

Summary: https://invdos.net/
Full Paper: https://invdos.net/paper/CVE-2018-17145.pdf

Suredbits Schnorr Applications Series

MuSig: https://suredbits.com/schnorr-applications-musig/
archive: https://archive.vn/i8shf

Scriptless Scripts: https://suredbits.com/schnorr-applications-scriptless-scripts/
archive: https://archive.vn/ni6j1

Batch Verification: https://suredbits.com/schnorr-applications-batch-verification/
archive: https://archive.vn/2S4X8

Threshold Signatures: https://suredbits.com/schnorr-applications-threshold-signatures/
archive: https://archive.vn/bPPco

Belarus Non-Profit Helps Protestors With Bitcoin Grants

- BYSOL non-profit has raised $2M+
- Provides grants of $1500 per persion
- Distributed using bitcoin since fiat transfers into Belarus are being blocked

original: https://www.coindesk.com/belarus-dissidents-bitcoin
archive: https://archive.vn/qfNrO

Square Announces Crypto Open Patent Alliance

> First, COPA members pledge never to use their crypto patents against anyone, except for defensive reasons, effectively making these patents freely available for all to use. Second, COPA creates a shared patent library where members pool all of their crypto patents together to form a collective shield of patents, allowing members to use each others’ patents to deter and defend against patent aggressors. This helps democratize patents for everyone, empowering even small companies with tools and leverage to defend themselves.

original: https://open-patent.org/
archive: https://archive.vn/PNX8Z

Top Podcasts of the Week

Tales from the Crypt - Rabbit Hole Recap - https://anchor.fm/tales-from-the-crypt/episodes/Rabbit-Hole-Recap-Week-of-2020-09-07-ejeiqa

Stephan Livera - Sergej Kotliar - https://anchor.fm/stephan-livera/episodes/SLP210-Sergej-Kotliar-How-To-Watch-Bitcoins-Mempool--Lightning-Adoption--Privacy-ejfeiq

What Bitcoin DId - BTC vs ETH - https://www.whatbitcoindid.com/podcast/btc-vs-eth-technicals

Bitcoin Rapid Fire - Iran, Turkey, Lebanon, Argentina - https://anchor.fm/john-vallis/episodes/TALKING-INFLATION-WITH-BITCOINERS-IN-IRAN--TURKEY--LEBANON--ARGENTINA-ejd3ad

Tales from the Crypt - Ben Carman - https://anchor.fm/tales-from-the-crypt/episodes/190-Ben-Carman-ejalbf

Stephan Livera - Samourai Wallet - https://anchor.fm/stephan-livera/episodes/SLP209-Samourai-Wallet---Bitcoin-Culture--New-Privacy-Features-eja8pa

Electrum v4.0.3 released

- PSBT support UTXO and WITNESS_UTXO
- Coldcard multisig improvement
- Automated BIP39 recovery
- other refactoring and bugs

release notes: https://github.com/spesmilo/electrum/blob/master/RELEASE-NOTES
download: https://electrum.org/#download

Sparrow Wallet 101 Guide

original: https://www.bitcoinqna.com/post/sparrow-wallet-101
archive: https://archive.vn/5DaxH

New FATF Report: Virtual Assests Red Flag Indicators

- Transactions
- Transaction Patterns
- Anonymity
- Senders or Recipients
- Source of funds or Wealth
- Geographical Risk

original: http://www.fatf-gafi.org/media/fatf/documents/recommendations/Virtual-Assets-Red-Flag-Indicators.pdf

BlueWallet v5.5.8 released

- Support for big wallets (>3k txs)
- New wallet sidebar navigation for tablet & desktop
- New languages
- New currencies
- Bug fixes

https://github.com/BlueWallet/BlueWallet

Paxful, Citing Regulations and Its Own ‘Risk Tolerance,’ Exits Venezuela’s P2P Bitcoin Market

> New Venezuelan account creation will be disabled and existing users will have 30 days to withdraw

original: https://www.coindesk.com/paxful-exits-venezuela
archive: https://archive.vn/0ew98

MicroStrategy CEO announces an additional bitcoin purchase on twitter:

"On September 14, 2020, MicroStrategy completed its acquisition of 16,796 additional bitcoins at an aggregate purchase price of $175 million. To date, we have purchased a total of 38,250 bitcoins at an aggregate purchase price of $425 million, inclusive of fees and expenses."

https://twitter.com/michael_saylor/status/1305850568531947520

MPPs & Wumbo Channels: Optimizing Liquidity on the Lightning Network

> Liquidity is all about flow. On the Lightning Network, bitcoin is the liquid, and the question is how much of it can move and at what speed. Payment channels are the network’s pipes, and until just recently, all pipes were fairly small, and a payment could only reside or flow through one pipe at a time. The liquidity was there, but it wasn’t flowing as well as it could have.

original: https://medium.com/breez-technology/mpps-wumbo-channels-optimizing-liquidity-on-the-lightning-network-6059bedea322
archive: https://archive.vn/eLHY3

c-lightning v0.9.1 released

blog: https://medium.com/blockstream/new-release-c-lightning-0-9-1-fbe4040980d9
download: https://github.com/ElementsProject/lightning/releases/tag/v0.9.1