RT @bitcoinoptech
Bitcoin Optech newsletter #115 is here:

- recommends checking for nodes vulnerable to the InvDoS attack
- describes the InvDoS attack
- summarizes "Stealing onchain fees from LN HTLC" attack
- links to announcement of the Crypto Open Patent Alliance


These days everyone seems to be rather busy being anti-this and anti-that and anti-everything-in-between.

You know what? I'd rather people tell me what they actually stand *for*, not everything they are *against*.

RT @Blockstream
We are proud to announce we've taken our defensive patent strategy, originally established in 2016, one step further by joining @sqcrypto in the Cryptocurrency Open Patent Alliance. We’ll be committing all of our existing patents to COPA. 🌐 blockstream.com/2020/09/11/en-

RT @bitcoinoptech
Bitcoin Optech newsletter #114 is here:

- describes continued discussion about a protocol for making routable coinswaps
- summarizes PR Review Club meeting: Re-delegate absurd fee checking from mempool to clients
- notable infrastructure projects changes


RT @hrdng
A while ago, for the one-year anniversary of the Bitcoin Core PR Review Club (@BitcoinCorePRs), Antoine Riard collected some comments---many which mentioned @jfnewbery. The comments are public, but today I'd like to tweet some of the things people said about this amazing mentor.

Who's up for some signet? Next week's Bitcoin Core PR Review Club meeting is on PR 18267 "BIP-325: Signet" by the ever-patient Kalle Alm (kallewoof). If you've ever wondered how to create a new chain, or the how and why of signet, join us on Wednesday hosted by Matthew Zipkin (pinheadz).

Notes and questions are up at:


I'm publishing my work diary following week-by-week all the work I do on bitcoin privacy. gist.github.com/chris-belcher/ It may be interesting to anyone who wants to follow how my projects, such as CoinSwap, are going

Bitcoin Optech #113

- proposed change to LN commitment transactions
- discussion of a default signet
- standardizing temporarily trusted LN channels
- recently transcribed talks/conversations

original: bitcoinops.org/en/newsletters/
archive: archive.vn/gGQNC

Got blown away by the UX of @CryptoAdvance Specter!
One thing is the great looking browser interface and app option, but connecting to Bitcoin Core only under the hood makes me more excited than any button!
Try the latest version on a @RaspiBlitz:
RT @stephanlivera
SLP205 Specter-Desktop with @StepanSnigirev & @_benkaufman

- #Bitcoin multi sig
- making it e…

@verretor I call anyone who contributes to any Bitcoin project a "Bitcoin contributor". If they contribute to Bitcoin Core, then I call them a "Bitcoin Core contributor".

Disturbing reports that Google Play is threatening to kick out Mastodon apps. See:



App stores have a track record of acting capriciously & are also easy targets for gov't censors (including Trump). This is why alternatives like @fdroidorg are so important for user freedom.

If unfamiliar: F-Droid is a free & open source app you can use to install other Android apps, with focus on free & open source software. Get it here:


@SimpleAristocrats Anything new is going to be risky. That was true once of Bitcoin multisig (hello off-by-one bug), P2SH (hello 520 byte push limit), and segwit (hello fee overpayment attack). It'll also be true of schnorr. However, one of the nice things about the commitment to soft forking in new features is that they're optional---you don't need to use P2SH or segwit if you don't want to and you'll also be able to let other people take the early adoption risk of trying schnorr/taproot.

Writeup on #bitcoin network topology. Didn't read it all, but looks like a nice writeup, especially if you've ever been confused about what a full node is, or how a miner interacts with the network, or how a wallet on your phone works.


RT @bitcoinoptech
Bitcoin Optech newsletter #111 is here:

- describes possible update to BIP340 schnorr signatures spec
- details BIP that specifies how nodes should handle P2P protocol feature negotiation in a forward compatible way
- changes to services/client software


@Sosthene I've been having problems myself with anxiety for the first time in years---and I haven't even been directly affected by covid in any big way (e.g. my income is still stable, nobody I know is sick, etc...). I can very easily believe there's a huge amount of psychological issues being created or made worse every day this goes on.

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