Vulcan21 @Vulcan21com Twitter profile

Pinned Tweet

Vulcan21

4 months

@SeedSigner Premium back in stock! All versions available again 🔥 ⚫️All Black 🟠All Orange ⚪️All Silver ⚪️⚫️Silver/Black ⚪️🟠Silver/Orange

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Last Seen Profiles

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Vulcan21

@Vulcan21com

2 years

Introduction: @SteelQR21 plates available @ Our goal: make self-sovereign seed security as convenient as possible while providing optionality without compromising security You're new to this concept and wondering what the benefits are? Buckle up for a🧵

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Vulcan21

@Vulcan21com

2 years

is live 🫰 We're so grateful for this community and massively excited for all ahead! To celebrate this milestone we'll be giving away an EXCLUSIVE BUNDLE to one of you plebs who shoot a like, comment and retweet. Winner announcement in 24 hours

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Vulcan21

@Vulcan21com

11 months

This is what we’ve all been waiting for 🔥

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Vulcan21

@Vulcan21com

2 years

You missed it? Below you'll find all threads from our 7-day @SeedSigner guide series on how to correctly build, safely setup, and securely handle the Free Open Source Software, signing device. Get your bitcoin off exchanges and take personal responsibility, one seed at a time.

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Vulcan21

@Vulcan21com

7 months

That Sunday feeling 🧡

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Vulcan21

@Vulcan21com

2 years

We're getting close now...

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Vulcan21

@Vulcan21com

8 months

🔥 @SeedSigner Premium V2 now available🔥 What's new? -full color options: orange/black/silver -power only microUSB port -design face-lift -build tool set included Available at Massive shoutout to @XmrStreet for the gorgeous design & quality production

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Vulcan21

@Vulcan21com

8 months

GM self-custodians

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Vulcan21

@Vulcan21com

2 years

It's Monday morning and we're pumped. LFG! Next to the individual @SteelQR21 we also put together three BUNDLES that are available @ We'll go through the options, included products as well as what BUNDLE is best for you A short 🧵 to start the week...

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Vulcan21

@Vulcan21com

1 year

Let's simplify things... Going forward, the @SeedSigner DIY kit will include a soldered Raspberry Pi Zero 💥 No more manual soldering or hammering needed! Available at

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Vulcan21

@Vulcan21com

1 year

Happy #BitcoinPizzaDay everyone 🍕

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Vulcan21

@Vulcan21com

11 months

New @SeedSigner Premium coming to life 👀

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Vulcan21

@Vulcan21com

2 years

What a day! Massive shout-out to all involved in making the nationwide #gesundesgeld campaign a reality on Bitcoins birthday 🙏 And boy, how beautiful is it to see a @SeedSigner and @SteelQR21 for an entire day on a billboard in Stuttgart, Germany 👀 Gradually then suddenly...

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Vulcan21

@Vulcan21com

2 years

KYC is the illicit activity

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Vulcan21

@Vulcan21com

2 years

Happy Genesis Day. Happy Proof of Keys Day. Happy 2023. Bitcoin ist Stark im Ländle. Take Personal Responsibility. One Seed at a Time. cc @_einundzwanzig_ @copiaro @PrincessPlo @SoundMoney_pod @SosShield #gesundesgeld #ProofOfKeys #Bitcoin

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Vulcan21

@Vulcan21com

2 years

The new cold-rolled surface needs a lot of subtle tweaking of the laser parameters to get the frosted background to absorb reflections while remaining nice and bright. Getting close to a result we are happy with.

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Vulcan21

@Vulcan21com

8 months

👀

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Vulcan21

@Vulcan21com

11 months

Full @SeedSigner Premium restock 👀

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Vulcan21

@Vulcan21com

10 months

Ready to ship these beautiful @SeedSigner Premiums 👀

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Vulcan21

@Vulcan21com

2 years

Stay humble & stack. Cleaned. Bagged. Sealed. Ready for shipping. The @SteelQR21 backup plates are compatible with @SeedSigner , @Blockstream Jade, @SpecterWallet DIY, Krux and @SparrowWallet Self custody is non-negotiable.

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Vulcan21

@Vulcan21com

2 years

10% OFF all orders at (Nov 25th 1pm - 27th 11:59pm UTC) with coupon: PERSONALRESPONSIBILITY 🔥We're giving away a @SeedSigner together with a @SteelQR21 of your choice🔥 👉like 👉retweet 👉follow The 1 winner will be announced when the coupon goes live

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Vulcan21

@Vulcan21com

2 years

You've heard of @SeedSigner but not had the chance to build/use one yet? If so, we're happy to say we have stock at As there are no excuses to not get one now, we better get you up to speed so we'll publish one guide a day for the next week. Let's go👇

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Vulcan21

@Vulcan21com

11 months

@SeedSigner prices lowered! 👀

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Vulcan21

@Vulcan21com

2 years

Prototyping is over 👨‍🏭 Production has begun 💥 The @SteelQR21 is designed to secure your 12 or 24 word seed and is currently compatible with: ✅ @SeedSigner ✅ @Blockstream Jade ✅ @SpecterWallet DIY ✅ @SparrowWallet More info at

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Vulcan21

@Vulcan21com

11 months

Use @SeedSigner to create your Bitcoin seed and securely back it up on stainless steel with a @SeedHammer 👀 Full tutorial on YouTube: SeedHammer & SeedSigner available at

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Vulcan21

@Vulcan21com

2 years

Additionally to the use with @SeedSigner all versions of the @SteelQR21 are now compatible with @SparrowWallet 🔥🔥 Thank you @craigraw In the following we've listed some brief thoughts and considerations and will go into more detail next week...

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Vulcan21

@Vulcan21com

1 year

A rugged Pill @SeedSigner needs a rugged @SteelQR21 Testing a new mat/rough surface finish. The performance is pretty sweet in bright sunlight as well as normal room lighting.

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Vulcan21

@Vulcan21com

7 months

Brand new @SeedSigner Premium are born 🔥🧡

Vulcan21

@Vulcan21com

7 months

That Sunday feeling 🧡

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Vulcan21

@Vulcan21com

8 months

GM

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Vulcan21

@Vulcan21com

2 years

How easy is it to use a @SteelQR21 with @SeedSigner or @Blockstream Jade? Don't trust, verify.

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Vulcan21

@Vulcan21com

11 months

Moar @SeedSigner building 💥

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Vulcan21

@Vulcan21com

2 years

Prototyping is so much fun! 💥 Current stage of getting the contrast & reflection of our C12 @SteelQR21 just right with our new manufacturer. ✅ Scanning reliably @SeedSigner ✅ Reduced reflection (on the right) Production is right around the corner...

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Vulcan21

@Vulcan21com

1 year

It has been a crazy past couple of weeks but we now have a full restock of @SeedSigner at 🎉 🛠DIY Kit or 🏁Preassembled @SteelQR21 are officially sold out. Restock is underway.

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Vulcan21

@Vulcan21com

10 months

We have a full restock of the phenomenal @SeedSigner Premium cases crafted by @MoneroTime . Grab one while they last 👀

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Vulcan21

@Vulcan21com

1 year

Personal responsibility on the rise. One seed at a time.

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Vulcan21

@Vulcan21com

1 year

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Vulcan21

@Vulcan21com

2 years

This really isn't that complicated...

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Vulcan21

@Vulcan21com

2 years

Check out the before and after on that surface 👀 Working through 500 @SteelQR21 plates by hand today: 🪥Surface finishing 🧽Cleaning 📦Packaging 🚚Shipping to laser partner

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Vulcan21

@Vulcan21com

2 years

Take control of your financial sovereignty. Strong self-custody tools will support enjoying the peace of mind that comes with owning and controlling your wealth. @SeedSigner : create seeds & sign transactions @SteelQR21 : secure your seeds @SparrowWallet : manage wallets

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Vulcan21

@Vulcan21com

1 year

So what do you guys think: Is this worth a go?

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Vulcan21

@Vulcan21com

2 years

🧡 Nehmt persönliche Verantwortung 🧡 Lasst eure Bitcoin nicht auf der Krypto-Börse 🧡 Bitcoin ist stark im Ländle 🧡 Plebs together strong #gesundesgeld #Bitcoin

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Vulcan21

@Vulcan21com

2 years

1/16 This is part four of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we'll cover how to: 👉set up a watch only wallet as a coordinator The SeedSigner is available at: Step by step. Let's go 👇

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Vulcan21

@Vulcan21com

1 year

It's our first birthday 🎂 What a year this has been. Thank you for all your support. This wouldn't have been possible without you! To celebrate we're giving away a @SeedSigner and a @SteelQR21 ♻️Retweet, ♥️like, 💬comment & 🏃follow within the next 48h to get a chance to win

Vulcan21

@Vulcan21com

2 years

is live 🫰 We're so grateful for this community and massively excited for all ahead! To celebrate this milestone we'll be giving away an EXCLUSIVE BUNDLE to one of you plebs who shoot a like, comment and retweet. Winner announcement in 24 hours

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Vulcan21

@Vulcan21com

1 year

We've officially upgraded the @SeedSigner case: ⛔️OPEN PILL 🧡RUGGED PILL Additionally, each SeedSigner order will include: ✅matching micsoUSB cable ✅microSD card ✅3x SeedQR templates ✅instructions ✅ball point + felt tip pen ✅Stickers Available @

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Vulcan21

@Vulcan21com

1 year

What do you think about these new black joysticks for our black and orange @SeedSigner ?

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Vulcan21

@Vulcan21com

2 years

Can confirm. The new @specter DIY release v1.7.0 by @StepanSnigirev supports both the compact and standard @SteelQR21 formats. Don't trust verify.

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Vulcan21

@Vulcan21com

1 year

New case design 💥 New color options 🔥 Matching cables included 👀 Full restock at Big respect to @Printer_Gobrrr for the superb case design!

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Vulcan21

@Vulcan21com

11 months

Ready to ship 🫡

Vulcan21

@Vulcan21com

11 months

New @SeedSigner Premium coming to life 👀

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Vulcan21

@Vulcan21com

2 years

@SteelQR21 inventory incoming 🧼💥📦🥂

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Vulcan21

@Vulcan21com

11 months

You won’t regret the upgrade to @SeedSigner Premium

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Vulcan21

@Vulcan21com

2 years

1/24 This is part seven (final) of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we'll cover how to: 👉setup multisig The SeedSigner is available at: Nearly there... Let's go👇

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Vulcan21

@Vulcan21com

2 years

The stripped @SteelQR21 S24 plates are now available SteelQR & Bundle prices permanently lowered by up to 30% By decreasing overall cost while maintaining quality we decided to stay true to the @SeedSigner ethos and pass the benefits on to our customers

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Vulcan21

@Vulcan21com

2 years

SeedVault is now available at: Protect your @SteelQR21 from extreme mechanical force by safely storing it in a 316L stainless steel enclosure. Check out this thread covering the brutal testing procedure: TLDR: no data loss 👊

SeedMint

@SeedMint21

2 years

Time for a first review on @SeedSigner SeedQR cold storage with Enclosure. Follow the thread 🧵 for Info on what has been done (so far)

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Vulcan21

@Vulcan21com

2 years

Second favorite stacking, right here. I guess I've got my work cut out for me.

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Vulcan21

@Vulcan21com

2 years

Few.

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Vulcan21

@Vulcan21com

2 years

Sunday evening, good music, and a bunch of @SeedMint21 brass to polish. Bullish.

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Vulcan21

@Vulcan21com

2 years

Got a restock of raw cut plates 👀 These will be off to @snicktoshi to be lasered next week. Great excuse to hang out and have a quality dinner together. Good times!

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Vulcan21

@Vulcan21com

7 months

GM

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Vulcan21

@Vulcan21com

9 months

New toys for Christmas 📸 You guys have no idea how much I’m looking forward to reshooting our product images! You may want to hold your breath for some (hopefully) stunning macros of the full aluminum @SeedSigner Premium case🖤🧡

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Vulcan21

@Vulcan21com

2 years

The shop will launch: Tuesday, 7pm CET (6pm UTC; 1pm ET) Until then, let's have some fun, shall we? Are you ready for a riddle? You should get your @SeedSigner and use a SteelQR LFG!

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Vulcan21

@Vulcan21com

8 months

Take self custody of your #Bitcoin Yes, you 🫵

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Vulcan21

@Vulcan21com

9 months

First day back in the office. Second day of the year. Third year of operation. Let’s build some @SeedSigner

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Vulcan21

@Vulcan21com

2 years

Here is a time lapse of stamping a #Bitcoin seed onto a @SteelQR21 backup plate and importing the seed into a @SeedSigner . We've got some nice video guides in the pipeline... for more info

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Vulcan21

@Vulcan21com

1 year

🔥We're teaming up with @SeedHammer for @BtcPrague ! Let's chat about @seedsigner and our SeedQR related self custody solutions @ booth 39🤝 🎉We're giving away an INDUSTRY TICKET allowing us to meet you in person at #BtcPrague ! 🔄Retweet to participate Winner named on May 28th

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Vulcan21

@Vulcan21com

2 years

Asking how to take self custody? 👉create seed: @SeedSigner 👉secure seed: @SteelQR21 / @SeedMint21 👉export xpub to: @SparrowWallet , @SpecterWallet , @bluewalletio / @nunchuk_io 👉make small test tx 👉delete & recover setup 👉withdraw BTC from exchange

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Vulcan21

@Vulcan21com

2 years

This is part three of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we will cover how to: 👉create, backup and recover seeds The SeedSigner is available at: This one got pretty long... Let's go 👇

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Vulcan21

@Vulcan21com

1 year

Better late than never, I guess 🔥Running nostr🔥 npub1hc65wf3cq9pk8235q7udtun7a3sazgxevww2jpctnfr8wwt9s0dq8ga3yg Drop your npub below to get connected 🤝

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Vulcan21

@Vulcan21com

1 year

💥Ever wondered what the laser process of the @SteelQR21 looks like? Compatible with: ✅ @SeedSigner ✅ @Blockstream Jade ✅ @SpecterWallet DIY ✅ @FOUNDATIONdvcs Passport (export) ✅ @SparrowWallet Available at: 🧡 @Vulcan21com 🧡 @btc_hardware 🧡 @GoBrrr_me 🧡 @copiaro

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Vulcan21

@Vulcan21com

2 years

Case testing under way... We will be sharing results and @seedsigner , @SteelQR21 as well as @SeedMint21 setups shortly. Let us know if you have any suggestions or requests

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Vulcan21

@Vulcan21com

2 years

Quite a few of you have been asking about a hardcore housing solution for the @SteelQR21 @snicktoshi did some prototypes a while back (see link) This is now the current design state. Anything you'd like to see integrated?

SeedMint

@SeedMint21

3 years

This is what spontaneously came into mind, when cutting up the plates for the anon @SeedSigner SeedQR test. The shop starts to really come along thanks @antomousB and we’ll announce a timeline soon. Bullish on having more time to publish new projects on our minds #realdamnsoon

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Vulcan21

@Vulcan21com

2 years

Nothing beats the feel of a hand polished resin @SeedSigner case. Game changer.

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Vulcan21

@Vulcan21com

2 years

🔥We now have the @SeedSigner in stock for global shipping at to go along with your @SteelQR21 🔥 A limited supply of 2⃣1⃣ signers will be going out with the zero v1.3 boards. Once they are gone there will be more zero W boards with WIFI/BT mech. disabled

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Vulcan21

@Vulcan21com

11 months

Gorgeous @SeedSigner Premium cases. Check out the build quality, button action and boot time 🔥 Sound on 🔊

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Vulcan21

@Vulcan21com

11 months

Every @seedsigner order includes:

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Vulcan21

@Vulcan21com

2 years

This is part two of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we will cover how to: 👉download, verify, and install all relevant software The SeedSigner is available at: You ready? Let's go 👇

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Vulcan21

@Vulcan21com

2 years

Self-custody is non-negotiable

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Vulcan21

@Vulcan21com

2 years

1/14 This is part six of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we'll cover how to: 👉add a passphrase The SeedSigner is available at: This shouldn't take long... Let's go👇

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Vulcan21

@Vulcan21com

2 years

If you're here for the fundamental principles of bitcoin, take self-custody and run your own node.

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Vulcan21

@Vulcan21com

2 years

@BTCsessions has knocked it out of the park! A great full guide on building and using a @SeedSigner with @SparrowWallet and an @anchorhodl case Check out @SteelQR21 for steel (316L) versions of the paper QR templates available at

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Vulcan21

@Vulcan21com

2 years

Never underestimate the power of face-to-face interaction. Today we took the time to shake our local laser marking specialists hand. It was a hugely rewarding and inspiring visit as well as a gorgeous drive... Samples will go out soon 🚚

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Vulcan21

@Vulcan21com

11 months

Give your @SeedSigner the upgrade it deserves 👀 ✅Preassembled ✅DIY Kit ✅Case only Your choice at

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Vulcan21

@Vulcan21com

1 year

Bought a new watch. Is this short Bitcoin?

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Vulcan21

@Vulcan21com

11 months

GM

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Vulcan21

@Vulcan21com

1 year

It's our last day at @BtcPrague Thanks to everyone who came by 🤝 If you haven't had the chance yet, come visit us at booth 39 and let's chat about @SeedHammer , @SeedSigner and @SteelQR21

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Vulcan21

@Vulcan21com

10 months

I remain blown away by the combined quality of the @SeedSigner software and these premium aluminum cases

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Vulcan21

@Vulcan21com

1 year

Nearly finished...

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Vulcan21

@Vulcan21com

2 years

BTFD and setup your backups with 316L stainless steel @SteelQR21 In combination with @SeedSigner storing your new sats doesn't get more secure and convenient.

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Vulcan21

@Vulcan21com

2 years

@CoDeC__ @Thiago54604073 @econoalchemist @SeedSigner @SeedMint21 Theft resistance is tough. The first step is tamper evidente storage. Here's a sneak preview to a more indeapth post later today on the SeedVault...

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Vulcan21

@Vulcan21com

11 months

🔥Orders running hot🔥 Only 7 @SeedSigner Premium cases left 👀

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Vulcan21

@Vulcan21com

1 year

2.1M donated to @SeedSigner via @OpenSats 🥳 21% of earnings related to @SeedSigner & @SteelQR21 sales via are donated Remember to support your favorite FOSS projects Special thanks to @SeedSigner Nick @KeithMukai & @newtonick for all you contributions🧡

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Vulcan21

@Vulcan21com

1 year

💥We are proud to announce @SeedHammer will be at #BitcoinAmsterdam 💥 Come by for a demo of how to generate a seed with @SeedSigner & create secure steel backups with @SeedHammer Thank you to @SatsVault for representing us at the booth & to @BitcoinMagazine for the opportunity

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Vulcan21

@Vulcan21com

2 years

Thank you @econoalchemist for putting in the time and effort to test the @SteelQR21 . Absolutely love to see this! Durability and recoverability is our top priority. Could you share some details on the stress test the plate was exposed to?

burn the bridge

@econoalchemist

2 years

A #Bitcoin master seed can be exported in QR code format using @SeedSigner & stamped into a stainless steel plate made by @SeedMint21 . The plate can withstand extreme environmental conditions like fire & flood, preserving the information well enough to be transcribed & recovered.

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Vulcan21

@Vulcan21com

1 year

Soon™️ is finally here (partially) In a massive release @FOUNDATIONdvcs have integrated SeedQR export. Great to see this standard continue to gain traction Passport users can now export a seed as a QR-Code that can be stamped onto @SteelQR21 backup plates Import remains soon™️

FOUNDATION

@FOUNDATIONdvcs

1 year

We've just dropped our biggest firmware update ever 🤯 Say hello to Passport firmware v2.1, packed with new features to empower your use of Bitcoin across the board: Download and install it today via the Envoy app, or directly from Github.

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Vulcan21

@Vulcan21com

1 year

Hope y'all had a great Easter weekend. @SteelQR21 production is ramping up nicely. Let's keep pushing.

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Vulcan21

@Vulcan21com

1 year

@SeedSigner orders are flooding in. We are on it 🏃 Limited supply left at

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Vulcan21

@Vulcan21com

1 year

D'you want to see the @seedhammer in action? Here's a short tutorial on how to create a seed with a @SeedSigner 📸and how to secure🔐it on a stainless steel backup plate using a @seedhammer 💥🔨 ✅The @seedhammer and @seedsigner are available at:

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Vulcan21

@Vulcan21com

2 years

Huge shout-out to @Blockstream for releasing SeedQR support for Jade 🎉🎉 @SteelQR21 can now be recovered by: @SeedSigner @SparrowWallet @SpecterWallet DIY And @Blockstream Jade We appreciate your work 👊

Rich

@bitcoin__help

2 years

Check out @Blockstream Jade's camera scanning a hand-drawn @SeedSigner SeedQR 📸 Available now in 0.1.37 during Recovery Phrase Login with Electrum/Sparrow. Green support coming soon.

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Vulcan21

@Vulcan21com

2 years

Working through some @SeedMint21 upgrades 👉Stamp your seed on plates in addition to washers with the same device 👉one instead of two punch holes eliminating the cost for a second set of punches 👉an additional spring plunger to snap lock the slider and plate Any thoughts?

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Vulcan21

@Vulcan21com

2 years

1/22 This is part five of our daily guide series on correctly building, safely setting up, and easily using a @SeedSigner Today we'll cover how to: 👉create, sign, broadcast transactions The SeedSigner is available at: This is the fun bit... Let's go👇

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Vulcan21

@Vulcan21com

7 months

@SeedSigner Premium ready to ship 🤝📦🚚

Vulcan21

@Vulcan21com

7 months

Brand new @SeedSigner Premium are born 🔥🧡

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