Matt Carvalho @mattcrv Twitter profile

Last Seen Profiles

@RIZIN_CUP

@h11437074

@bokeplokalmalam

@ESPNNFL

@BinorRaja

@wzcmarsh

@Feidei_Vedruzca

@Actn_jcksn

@WhovianLeap

@bullyb170

@Govrnmentjudas

@AInfiniteTV

@ponytailgirlmin

@Eric_Schmitt

@Garotomendes_

@iamDCinvestor

@Er_Vj_Raj

@Kirst0leg

@CherishelfLee

@amyewalter

@AlmutairiM98074

@_onerolita

@Dagen

@OuroborosCap8

@3Q5HC

@trotterzzcs

@HBCUGameday

@NomadCapital_io

@deeparocks

@Juanpablovil3

@zobic3

@ENCElite

@iamAhmadshahzad

@GregDowney

@spligga

@KennethBar44282

Matt Carvalho

@mattcrv

3 months

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.

US Attorney SDNY

@SDNYnews

3 months

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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Matt Carvalho

@mattcrv

21 days

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

2 months

running ark

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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

5 months

@Lauren_Dowling_ WBTC is not BTC.

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Matt Carvalho

@mattcrv

4 months

Bolt Cards on the Google or Apple Wallet would be dope

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Matt Carvalho

@mattcrv

5 months

@RussellOkung It’s hard to sell savings technology for those who have no money left to save

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

3 months

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? 🤔

Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

3 months

Matt Carvalho

@mattcrv

3 months

Finally got my @COLDCARDwallet Q! This calculator is thicc 🥵 Excited to try it out! Tks @nvk @HodlDee

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Matt Carvalho

@mattcrv

3 months

@pete_rizzo_ apparently the buyer didn't read the sign 🤦‍♂️

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Matt Carvalho

@mattcrv

3 months

@materialbitcoin to spend, you have to type the private key CHARACTER BY CHARACTER lmao 🤣

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

3 years

OnlyFans does a better job at reducing wealth inequality than the government.

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Matt Carvalho

@mattcrv

3 years

@adam3us

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

20 days

I just set up my Swan Vault, and the user experience was incredibly smooth! 🔐 Using #Bitcoin -only hardware wallets like Blockstream Jade makes multisig so much easier. You don't even need to install companion apps like Trezor Suite or Ledger Live.

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

5 months

. @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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Matt Carvalho

@mattcrv

2 months

@wasabiwallet Thank you for your service!🫡

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Matt Carvalho

@mattcrv

5 months

@DrBitcoinMD @NickSzabo4 he spoke at @LuganoPlanB 4 months ago:

Bitcoin and Social Scalability | Plan ₿ Forum 2023 | Lugano

Bitcoin and Social Scalability with Nick Szabo.Plan ₿ Forum 2023

www.youtube.com

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Matt Carvalho

@mattcrv

3 months

Finally got my @COLDCARDwallet Q! This calculator is thicc 🥵 Excited to try it out! Tks @nvk @HodlDee

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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

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.

TwentyTwo Devices

@TwentyTwoHW

4 months

Hello, Portal!

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Matt Carvalho

@mattcrv

3 years

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

3 years

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

5 months

Bitcoin is NOT for everyone. It's only for those who can afford on-chain fees.

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Matt Carvalho

@mattcrv

3 months

@CryptoTea_ @PhoenixWallet @SamouraiWallet was self-custodial too!

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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

5 months

Two days ago, @Bitkeyofficial made their source code available. Today, I'll unbox it:

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

3 years

@andreneves , @SECowell , @MandelDuck , and @zebedeeio team, big fan of your work! Here's my essay bullish on ZBD: Hope you like it!

Resettlr | Substack

Essays on companies layered upon the Bitcoin and Lightning protocols. Click to read Resettlr, a Substack publication.

resettlr.substack.com

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Matt Carvalho

@mattcrv

3 months

3/ Muun "unified" balances 2 years before the splicing spec was first drafted.

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

4 months

everyone is fixated on the Number Going Up, but it's more fun to watch this Number Go Down 👇

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Matt Carvalho

@mattcrv

3 months

@Wizardsardine

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Matt Carvalho

@mattcrv

10 months

Bitcoin wins because it monetizes ideology

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Matt Carvalho

@mattcrv

5 months

@bitkitwallet

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Matt Carvalho

@mattcrv

3 years

@SallyMayweather Soon this will be used to justify vaccinating babies against COVID.

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Matt Carvalho

@mattcrv

3 years

In 1974, @vgcerf and Bob Kahn published a paper titled "A Protocol for Packet Network Intercommunication" describing a protocol for sharing data between network nodes. Eventually, it became known as TCP/IP, or, formally, the Internet Protocol Suite.

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Matt Carvalho

@mattcrv

4 months

@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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Matt Carvalho

@mattcrv

4 months

You’ll probably never own much more bitcoin than you have today. Let that sink in

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Matt Carvalho

@mattcrv

6 months

@Swan Impressive, congrats! Now I guess it's easier to list what Swan doesn't do

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Matt Carvalho

@mattcrv

2 years

#Bitcoin is a digital living organism that feeds on people's high time-preference to produce a low time-preference civilization.

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Matt Carvalho

@mattcrv

4 months

🎣

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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

LEAKED 🚨 Here's a prototype of the upcoming @Bitkeyofficial Lite:

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Matt Carvalho

@mattcrv

5 months

@agbegin @blinkbtc

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Matt Carvalho

@mattcrv

2 months

@jack Isn't their decision at least reasonable, considering that LSPs are closer to money transmitters than coinjoin coordinators? Phoenix is more trusted than Whirlpool and will soon offer privacy properties that are pretty effective for money laundering.

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Matt Carvalho

@mattcrv

3 months

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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Matt Carvalho

@mattcrv

4 months

In January 2014, 2100 BTCs were burned to mint the @CounterpartyXCP token. That'd be worth over $150 million today.

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Matt Carvalho

@mattcrv

3 months

@PhoenixWallet Great decision! What about defaulting US users to a different LSP? Is that a possibility for the future?

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Matt Carvalho

@mattcrv

6 months

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

Add LUD-22: Payee Data. by jklein24 · Pull Request #252 · lnurl/luds

This is the payee-side equivalent of LUD-18. It gives the opportunity for the payer to request that the payee provide identitifying information before the payment is made. This allows the sending W...

github.com

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Matt Carvalho

@mattcrv

3 months

@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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Matt Carvalho

@mattcrv

5 months

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).

Matt Carvalho

@mattcrv

5 months

. @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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Matt Carvalho

@mattcrv

3 years

@raphaelkpect1 @Jeff_SeuFreitas @BtcDoomGuy @allanraicher @RadarBtc @bksbk6 @magnumo80267026 @InvestWolf N

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

4 months

I was today years old when I learned that hovering over "Taproot" on @mempool shows this:

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Matt Carvalho

@mattcrv

5 months

@BTCsessions Exodus uses the Wallet of Satoshi API

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Matt Carvalho

@mattcrv

1 year

Time to cancel my @Grammarly subscription 🤡🌎

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Matt Carvalho

@mattcrv

3 months

@MichaelRihani @Square @CashApp Incredible! Now merchants don't have to wait for their customers to get orange-pilled!

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Matt Carvalho

@mattcrv

2 years

#Bitcoin is money. Shitcoins are shitty securities.

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Matt Carvalho

@mattcrv

4 months

every time a mobile wallet asks you to back up 24 words instead of 12, a honey badger dies 🦡

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Matt Carvalho

@mattcrv

5 months

gmax was right:

DETERMINISTIC OPTIMISM | NVK 🌞

@nvk

5 months

Satoshi designed bitcoin so that he or anyone independently wouldn't mater. Satoshi didn't want to be sanctified or worshipped, Satoshi didn't want to be known. Satoshi faded away, respect his wishes.

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Matt Carvalho

@mattcrv

3 months

@BitcoinMagazine SOON: The first satoshi of #Bitcoin 's fourth halving is auctioning for 10% of the purchase price

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Matt Carvalho

@mattcrv

5 months

@MarathonDH what will the #FixTheFilters people argue now?

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Matt Carvalho

@mattcrv

9 months

@BitcoinBaden @BitcoinErrorLog @LuganoPlanB @bitkitwallet just opened my DMs and DM'd you!

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Matt Carvalho

@mattcrv

9 months

@muneeb As developers in the Bitcoin ecosystem, we need to be careful about marketing. Most users are not technical and can take the wrong message. With @Stacks , we saw marketing messages like "A Bitcoin layer for ‍smart contracts," whereas Stacks was nowhere close to being a layer.

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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

2 years

@lorenzo_lfm BCTPay

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Matt Carvalho

@mattcrv

3 months

@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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Matt Carvalho

@mattcrv

3 months

@BitcoinMagazine @jack @CashApp Square merchants processed $209.6 billion last year. Looking forward to see that NgU 👀

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Matt Carvalho

@mattcrv

5 months

This was fun! Check out the conversation between me, @aldert , @GBKS , @danielnordh , @johnsBeharry , and more:

Design Review #36: satsymbol.org

The Synonym team joined us to discuss their proposal at satsymbol.org to streamline the way we present bitcoin & satoshi units. The discussion touched on the...

www.youtube.com

Bitcoin Design Community

@bitcoin_design

5 months

Join our design review tomorrow at 13:00 UTC about the proposal with @Synonym_to . More info here:

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Matt Carvalho

@mattcrv

3 months

@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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Matt Carvalho

@mattcrv

6 months

maybe the real treasure was the prison we went to along the way

Lukas (computer) 🐂🔻

@SCHIZO_FREQ

6 months

Su on the way prison induces a harmonic return to the natural state of man

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Matt Carvalho

@mattcrv

4 months

@_pretyflaco @MicroStrategy 😂😂 well, at least digital property is more appropriate than digital energy 🔋

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Matt Carvalho

@mattcrv

4 months

the best affiliate program for bitcoin creators is owning bitcoin

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Matt Carvalho

@mattcrv

5 months

@bitkitwallet

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Matt Carvalho

@mattcrv

4 months

@Nexo @bitcoinbrink @bitgetglobal @chainalysis @0xPolygon @brave Signed 📝 LFG!

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Matt Carvalho

@mattcrv

4 months

fix email spam... fix the world

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Matt Carvalho

@mattcrv

2 years

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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Matt Carvalho

@mattcrv

4 months

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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Matt Carvalho

@mattcrv

4 months

@blackcoffeebtc @RSync25

Bitkit

@bitkitwallet

11 months

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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Matt Carvalho

@mattcrv

2 months

@getmash hope to see Mash back online soon!

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Matt Carvalho

@mattcrv

2 months

@LynAldenContact $NVDA only outperformed for those who paid capital gains on their Bitcoin 🤓

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Matt Carvalho

@mattcrv

11 months

This talk by @utxoclub at @BitcoinAlive is fire 🔥! Bullish on all the possibilities unlocked by Schnorr starting to get realized. Can't wait to snap some signing devices together!

Bitcoin Alive 2023 - Next Generation Multi Signatures

This session was recorded at Bitcoin Alive 2023, April 15th 2023 @ The Roundhouse, Sydney, Australia.Presentation by Nick Farrow (Bitcoin Developer @ SatSale...

www.youtube.com

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Matt Carvalho

@mattcrv

2 years

@psivyduck @zebedeeio @SECowell , @andreneves , @MandelDuck & team are so lucky to have you!⚡️

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Matt Carvalho

@mattcrv

3 years

#NFTs and #DeFi are nothing more than sophisticated instances of "blockchain for X". It's almost 2022, and people are still trying to separate the timechain from #Bitcoin . It's so early!

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Matt Carvalho

@mattcrv

4 months

I accelerated a splice out on @PhoenixWallet twice, and in both cases, it used CPFP and updated the commitment transaction. Quite expensive! Why isn't RBF used instead? 🤔

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