Matt Carvalho
@mattcrv
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Growing @Swan. Previously @Bitso @Synonym_to. Nerding out on Bitcoin products. Views not my own.
Joined May 2016
Thanks to the DOJ for incentivizing the development of privacy tools that don't rely on centralized coordinators. 🫡. Next time, there won't be just one server for you to seize.
Founders and CEO of cryptocurrency mixing service arrested and charged with money laundering and unlicensed money transmitting offenses. @IRSCI_NY @NewYorkFBI . 🔗:
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Thrilled to announce that I've joined Swan! 🦢. Excited to work with @CitizenBitcoin, @jeremyshowalter, and the entire team. Looking forward to helping millions take self-custody and retire with #Bitcoin!
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Everyone loved Muun from 2019 to 2022. Self-custodial, user-friendly, and Lightning-powered. But as on-chain transaction fees hiked, people dropped it. 🧗. Still, their legacy lives on. Here are 5 ways @MuunWallet innovated:. 🧵
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just found a company selling *paper* wallets made of *metal* 🤦♂️. it's so stupid that it looks like a parody. can you think of any bitcoin product that's dumber than this? 💩
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Muun hasn't received major updates since 2022. But I truly hope @esneider, @sebareca, @florravenna, @Barrilote, & team 🇦🇷 are stealthily building something new. They were ahead of their time before, and I look forward to seeing them at the forefront once again! 👑.
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Soon you'll buy BTC on @CashApp. Send via Lightning to @Bitkeyofficial. Receive through a @c_equals channel to your @lightningdevkit node. Pay with Bitcoin on a @Square PoS. Get your transactions mined by miners running @blocks' MDK. And you'll be happy!
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Funny how 24-word seed phrases feel safer than 12. (probably a cognitive bias 🧠). Doubling the word count offers no real advantage. 🤷♂️. And it's twice as cumbersome to backup. 12 is enough, don't waste your time with 24.
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In 2023 and 2024, @MuunWallet hired (at least) 14 new team members:. - 4 Software Engineers.- 3 R&D Engineers.- 2 Data Scientists.- 1 Machine Learning Engineer.- 1 Talent Acquisition Specialist.- 1 Global Controller.- 1 Office Manager.- 1 CX Agent. What are they cooking? 🤔.
Muun hasn't received major updates since 2022. But I truly hope @esneider, @sebareca, @florravenna, @Barrilote, & team 🇦🇷 are stealthily building something new. They were ahead of their time before, and I look forward to seeing them at the forefront once again! 👑.
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Finally got my @COLDCARDwallet Q!. This calculator is thicc 🥵. Excited to try it out! . Tks @nvk @HodlDee
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It's been nearly a year since @MicroStrategy announced their Lightning Platform with rewards and more. Haven't heard any updates since. Does anyone know if they're still working on it?
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OnlyFans does a better job at reducing wealth inequality than the government.
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One day, our great-grandchildren will hear stories about the fiat era. They'll study history through our memes. They'll question why humanity tolerated central banks for so long. They will own everything and be happy. 🥹.
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.@BitcoinAtlantis has just launched its @fedimint federation in partnership with @fedibtc. Pretty cool! I especially like the feature that allows canceling payments sent to federation members.
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Would you trust a wallet that DOESN'T allow you to back up your seed phrase? There are no mnemonics on @Bitkeyofficial 👇
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It'd be funny if @Bitkeyofficial implemented @COLDCARDwallet's trick PINs using different fingerprints:. Thumb 👍 Unlocks main wallet.Index 👆 Opens decoy wallet.Middle 🖕 Bricks the device.
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Finally got my @COLDCARDwallet Q!. This calculator is thicc 🥵. Excited to try it out! . Tks @nvk @HodlDee
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We need more opinionated Bitcoin products like @TwentyTwoHW's Portal. Don't overwhelm users with a million choices on how to use your product. Enabling people to do everything diminishes the UX for everyone. Most products should guide their users, not the other way around.
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Relying on swaps was never sustainable in the long term. As a business, Muun probably lost money subsidizing fees. Yet, users voted with their feet and flocked to Muun. Unsurprisingly, people prioritize ease of use over a "true Lightning experience".
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Altcoins, tokens and NFTs aren't scarce. Anything issued on PoS networks is copiable because the cost of copying it is close to zero. There can't be digital scarcity independent from physical scarcity. A digital asset only becomes scarce when it also obeys the laws of physics.
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Fuck mask mandates, fuck lockdown, fuck compulsory vaccination, fuck concentration camps for unvaxxed. All this unethical nonsense that didn't end after the vaccine made me deeply regret getting vaxxed. I'll disobey and sell fiat money until all the slave masters starve to death.
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Bitcoin is NOT for everyone. It's only for those who can afford on-chain fees.
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Introducing the @Humane Bitcoin Wallet ✨. Hardware wallets should feel more human:.🗣️ Read your seed phrase out loud.👕 Pin your life savings to your shirt.🤖 Select and label UTXOs with your voice.🤌 Verify transactions with your bare hands. Not your pin, not your coins!
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5/ Muun's seedless backup was one of the first of its kind. Users back up their email and password, not 12 words. @Bitkeyofficial took some notes. 📝. Muun also pioneered output descriptors.
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Did you know that the first release of Bitcoin's source code included a poker game? 🃏. People have speculated about Satoshi's intentions for years. Thanks to recently uncovered emails, we finally learned what happened. 🧵 1/6
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@andreneves, @SECowell, @MandelDuck, and @zebedeeio team, big fan of your work! Here's my essay bullish on ZBD: Hope you like it!.
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3/ Muun "unified" balances 2 years before the splicing spec was first drafted.
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4/ Muun was one of the first wallets to implement Taproot, improving privacy and reducing fees. Taproot activated on November 14, 2021. Check the date on this post 👇
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Hardware wallets are getting heavier ⚖️. 2014: Trezor One → 12g.2016: Ledger Nano S → 16g.2018: Trezor Model T → 22g.2019: Ledger Nano X → 34g.2023: Ledger Stax → 45g.2024: Bitkey → 65g.2024: COLDCARD Q → 93g (w/o 🔋🔋).
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There are 3,570 L-BTC issued in the Liquid blockchain. There are 156,087 WBTC issued in the Ethereum blockchain.
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Every lightning wallet should implement a "send all" feature like @walletofsatoshi. Making multiple payments to drain all your balance is so tedious!
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1/ In 2019, wallets like Eclair Mobile (by @acinq_co) and Lightning App (by @lightning) required users to understand payment channels. Muun enabled you to pay Lightning invoices without knowing anything about the protocol.
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Beware of security nihilism when reacting to @Bitkeyofficial. @TankredHase raised a valid point when introducing his 2-of-2 seedless cloud backup scheme:
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everyone is fixated on the Number Going Up, but it's more fun to watch this Number Go Down 👇
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2/ Muun was early to adopt submarine swaps, a recent invention by @alexbosworth and @roasbeef. Rather than sacrificing user-friendliness to stay self-custodial, Muun opted to compromise on fees. This tradeoff was reasonable during a time when 1 sat/vB was the norm.
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You’ll probably never own much more bitcoin than you have today. Let that sink in.
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@carelvwyk @CashApp @Bitkeyofficial @c_equals @lightningdevkit @Square @blocks sir do you still have any fiat left? 💸. I'm all-in, I have no option other than spending my ₿.
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I'm curious to hear how the Bitcoin community will evolve in @getairchat. It's harder to be toxic speaking than typing! ☣️. Perhaps Bitcoin Twitter would be more welcoming if all posts were voice recordings?
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The Silk Road intermediated over 9,519,664 BTCs in sales, contributing to the surge of the Bitcoin price from $0.91 to $128.36. Poker was never needed to generate demand for Bitcoin. Deep down, people already demanded freedom. 🧵 6/6
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Oct 2013: @RealRossU arrested.Nov 2013: Silk Road 2.0, relaunched by admins.Jan 2015: Silk Road Reloaded. Numerous darknet markets emerged since. @SamouraiWallet's sad downfall isn't the end of on-chain privacy. It's just the start.
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awesome to see @lightspark contributing back to the community. it'd be easier for them to stay in their lane after the backlash they've received, glad they didn't. hope their fresh perspective will be valuable 🤞. h/t @jeremylklein.
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@PhoenixWallet Great decision! What about defaulting US users to a different LSP? Is that a possibility for the future?.
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In January 2014, 2100 BTCs were burned to mint the @CounterpartyXCP token. That'd be worth over $150 million today.
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@PhoenixWallet Huge congrats! 🔥. Initially, BOLT 12 was promoted as enabling offers to be smaller than invoices, but on Phoenix, they are larger. No big deal with BIP 353 coming next, but out of curiosity: will offers continue to be larger than invoices, or is this a temporary measure?
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@BitcoinMagazine SOON: The first satoshi of #Bitcoin's fourth halving is auctioning for 10% of the purchase price.
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@MichaelRihani @Square @CashApp Incredible! Now merchants don't have to wait for their customers to get orange-pilled!.
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You can also join the federation on @MutinyWallet!. After the federation dissolves at the end of @BitcoinAtlantis, you can tap 🔀 to melt your ecash and go self-custodial (as long as you have a minimum of ₿100 000).
.@BitcoinAtlantis has just launched its @fedimint federation in partnership with @fedibtc. Pretty cool! I especially like the feature that allows canceling payments sent to federation members.
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every time a mobile wallet asks you to back up 24 words instead of 12, a honey badger dies 🦡.
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@PhoenixWallet Does the @acinq_co node know the final destination of payments sent to BOLT 12 offers?
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@notgrubles True, I wasn't fond of their approach either. Still, I hope this event will bring more attention to JoinMarket, PayJoin, Silent Payments, etc.
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These 17 equations changed the world. But the last one was added 34 years ago. We must add an 18th to the list. 🧵. 1/2
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@BitcoinMagazine @jack @CashApp Square merchants processed $209.6 billion last year. Looking forward to see that NgU 👀.
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@nunchuk_io Congratulations on the launch!. Will Finney eventually support Nunchuk's inheritance planning solutions?. Thinking of a scenario where a key holder wishes to designate someone not on the multisig as a beneficiary of their share. .
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@_pretyflaco @MicroStrategy 😂😂 well, at least digital property is more appropriate than digital energy 🔋.
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@benthecarman @TaprootWizards incredible news, congrats! looking forward to running an OP_CAT activation client and watching CatVM come to life 😺.
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Funny how @xapobankapp's example "address" doesn't resemble a Bitcoin address at all: aEKsdokf23ASDFKLerweñm2 😂. Seems like someone slept on the keyboard while designing this 😴
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seeing @_whitneywebb's talk on the open-source stage getting more views than Trump makes me very happy
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This was fun! Check out the conversation between me, @aldert, @GBKS, @danielnordh, @johnsBeharry, and more:
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maybe the real treasure was the prison we went to along the way.
Su on the way prison induces a harmonic return to the natural state of man
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Crypto is short for cryptography. When referring to unregulated securities issued on inefficient public databases, use "crypto", with the proper demeaningful quotation marks. Don't let pump and dumpers hijack such an important word.
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@BTCGandalf @materialbitcoin never saw one in person but i knew about it and always thought it was made of a premium, foiled paper. damn, wtf are those people smoking.
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But does that immense number make 24-word seeds safer?. Well, guessing 24 words is harder, but a supercomputer would find a 12-word or 24-word seed equally out of reach. Whether trillions or quintillions of years, it's a time frame beyond comprehension. 🧠. 3/.
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