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MuSig2-Simple Two-Round Schnorr Multi-Signatures.pdf
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MuSig2: Simple Two-Round Schnorr Multi-Signatures

> we propose MuSig2, a novel and simple two-round multi-signature scheme variant of the MuSig scheme. Our scheme is the first multi-signature scheme that simultaneously i) is secure under concurrent signing sessions, ii) supports key aggregation, iii) outputs ordinary Schnorr signatures, iv) needs only two communication rounds, and v) has similar signer complexity as regular Schnorr signatures. Furthermore, our scheme is the first multi-signature scheme in the DL setting that supports preprocessing of all but one rounds, effectively enabling a non-interactive signing process, without forgoing security under concurrent sessions.
Schnorr and Taproot Upgrade Proposal Merged Into Bitcoin Core

> The implementation of the Schnorr/Taproot consensus rules has been merged into Bitcoin Core. However, the upgrade's activation method has yet to be determined.
20 Arrests In QQAAZZ Multi-million Money Laundering Case

>  The funds were then transferred to other QQAAZZ-controlled bank accounts and sometimes converted to cryptocurrency using ‘tumbling’ services designed to hide the original source of the funds.  After taking a fee of up to 50-percent, QQAAZZ returned the balance of the stolen funds to their cybercriminal clientele.
lnresearch datasets

> Data about the past and current structure of the Lightning Network.

> The datasets consist of historical gossip messages that can be used to reconstruct the (public) network topology at any point in time.
Electrum v4.0.4 released

- PSBT: fix regression in 4.0.3 where UTXO data was not included in QR codes
- "Cancel tx" feature: The Qt/kivy GUI allows cancelling an unconfirmed RBF tx by double-spending its inputs to self
OKEx Suspends Withdrawals, Says Key Holder Not Available Due to Cooperation With Investigation

> Chinese news source Caixin is reporting one of OKEx's founders, Mingxing "Star" Xu, had been taken by police at least a week ago and hasn't been seen since.

> OKEx said in a statement: "We are unable to disclose the nature of an ongoing investigation but would like to assure all OKEx users that their funds are safe and that all other functions on OKEx are unaffected."

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Media is too big
Exploring Bitcoin With Taproot: Aaron van Wirdum, Andrew Poelstra, Adam Gibson & Chris Belcher

Media is too big
ReasonTV - Cryptography vs. Big Brother: How Math Became a Weapon Against Tyranny (Part 2)

> Part two of a four-part series on the history of the cypherpunk movement of the 1990s. Watch part one:

Nigerian Banks Shut Them Out, So These Activists Are Using Bitcoin to Battle Police Brutality

> Since adding the BTCPay bitcoin donation option on Oct. 14, the coalition has amassed roughly 3.14 BTC (~$36,000).
Transparency at Coinbase

> today we’re releasing a Transparency Report that shares insights into how we handle legitimate government requests for some customer data
This New Service Plays Matchmaker Between Solo Miners, Big Mining Farms

> Compass curates a registry of verified mining facilities, which miners can query to search for facilities by region, energy price and hardware hosting minimums. Each mining farm’s profile also lists security features and whether it offers mining equipment for rent. Searchers have their choice of facilities from Canada, China, Iceland, Kazakhstan, Russia and the U.S.
BTCPay Server v1.0.5.8 released

- Fix: Payjoin client implementation
- Fix: The send wallet, by default, should not include previous transaction
- Fix: Do not log database connection string
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Thai authorities are reported to have ordered internet providers to block the Telegram messaging app, which has been used by anti-government protesters

> A leaked document outlining the plans was shared on social media.
FinCEN Fines Bitcoin-Mixing CEO $60M in Landmark Crackdown on Helix, Coin Ninja

> Defunct former darknet giant AlphaBay is alleged to have forged particularly close ties to Helix. Prosecutors claim that Helix laundered $27 million in bitcoin for AlphaBay by integrating its mixing services on-site.
Breez Wallet Release Candidate released

- Channel creation on the fly
- Zero confirmation channels
- Capacity limit raised to 4M sats
- Multi-Path payments
Tails OS v4.12 released

- Tor Browser v10.0.2
- Tor v0.4.4.5
- Linux v5.8
Voltage is Here

> Voltage is a platform built to make the Lightning Network easy to use. Today we're releasing our core product; noncustodial cloud hosting for Lightning nodes. Through our platform anyone can create a Lightning node with a few clicks. We handle all the networking, backups, and upgrades so you can focus on using Lightning, not managing servers. You have the control to change your node's settings and access the APIs directly. Now you can get a Lightning node in two minutes, not two days.
DLC Private Key Management Part 2: The Oracle’s private keys

> Discreet Log Contracts enable non-custodial speculation directly on top of the bitcoin blockchain. When protocols are non-custodial, it’s important for users to understand how private keys are handled for the duration of their interaction with the protocol. This blog post focuses on key management from the oracle’s perspective.
part 1: