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No matter where you are, we are proude to provide you with the best Bitcoin security products available.
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You will get your money back if you choose to return your order within 14 days.
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- 299 € within the EU
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SeedSigner
Bitcoin Signing Device
As a Bitcoin signing sevice the SeedSigner supports the secure creation of Bitcoin wallets as well as convenient processing of air-gapped Bitcoin transactions.
Free Open Source Software
The device is developed and maintained by the Free Open Source Software project SeedSigner. The entire code base is free to access and use on the projects Github repository.
Air-gapped & stateless
SeedSigner is fully isolated from internet-connected devices, enhancing security against remote cyberattacks, and its stateless design allows a single SeedSigner to manage as many wallets as needed.
What people say
Stoked for my 1st multisig setup @SeedSigner @SeedMint21 #coldstorage #bitcoin #opensource pic.twitter.com/2xx4PXADh8
— Bing (@bingbong_BTC) April 23, 2022
Holy crap the @SeedSigner device is so f*cking punk rock. It is from-the-streets, cobbled-together, lo-fi pocket-tech assembled in basements and disseminated to rebel souls fiercely subverting the Orwellian cyber-dystopia toward which we inevitably hurtle. Heroic.
— Jake Sibley (@jakesibley) May 29, 2023
DIY #Bitcoin signing device built with general purpose hardware, open source software, & a 3D printed enclosure. The @SeedSigner is a game changer. pic.twitter.com/1q5NuLuWyr
— burn the bridge (@econoalchemist) May 4, 2022
SEEDSIGNER WORKSHOP DAY!
— Dublin Bitcoiners (@DublinBitcoiner) July 1, 2023
Bitcoiners booked in ✅@SeedSigner tested ✅@Azteco_ vouchers printed✅
Sweaty palms ✅😅
A huge thank you to @Vulcan21com for the quality service and great products they offer! I can’t speak more highly of these guys! pic.twitter.com/dQN5ZZXsWs
Also check out this beautiful package by @Vulcan21com w/ a few swag add-ons! Especially love the energy sticker 😂 #Bitcoin pic.twitter.com/BvEdfUaA3g
— Mars (@Marsmensch) July 13, 2023
I just finished building my @SeedSigner and now I can’t sleep
— Chris Alaimo (@ChrisAlaimo6) November 16, 2022
Damn you @KeithMukai @ODELL!
My understanding of wallets has elevated even more after using my @SeedSigner 💥
— juan 👁🗨 (@juansebastiangb) April 15, 2022
Also I gotta try out @nunchuk_io pic.twitter.com/vzyWGh9faE
SeedSigner is the Linux of Bitcoin self-custody.
— Leonardo Martins (@snitramodranoel) July 20, 2023
.@SeedSigner is a treasure of a #Bitcoin project, which we must help support+develop+maintain at all costs.
— ED ⚡️ 🍯 🦡 (@btcede) April 10, 2022
End-end DIY FOSS HW + SW is about as sovereign as it gets
++ 1st HWW co. to pull its head out of its ass+commercialise mass market stateless signing device will make $BB
I only trust my @SeedSigner at this point
— Logen 🧡⚡️ (@logandetty) May 16, 2023
Stoked for my 1st multisig setup @SeedSigner @SeedMint21 #coldstorage #bitcoin #opensource pic.twitter.com/2xx4PXADh8
— Bing (@bingbong_BTC) April 23, 2022
Holy crap the @SeedSigner device is so f*cking punk rock. It is from-the-streets, cobbled-together, lo-fi pocket-tech assembled in basements and disseminated to rebel souls fiercely subverting the Orwellian cyber-dystopia toward which we inevitably hurtle. Heroic.
— Jake Sibley (@jakesibley) May 29, 2023
.@SeedSigner is a treasure of a #Bitcoin project, which we must help support+develop+maintain at all costs.
— ED ⚡️ 🍯 🦡 (@btcede) April 10, 2022
End-end DIY FOSS HW + SW is about as sovereign as it gets
++ 1st HWW co. to pull its head out of its ass+commercialise mass market stateless signing device will make $BB
SEEDSIGNER WORKSHOP DAY!
— Dublin Bitcoiners (@DublinBitcoiner) July 1, 2023
Bitcoiners booked in ✅@SeedSigner tested ✅@Azteco_ vouchers printed✅
Sweaty palms ✅😅
A huge thank you to @Vulcan21com for the quality service and great products they offer! I can’t speak more highly of these guys! pic.twitter.com/dQN5ZZXsWs
Also check out this beautiful package by @Vulcan21com w/ a few swag add-ons! Especially love the energy sticker 😂 #Bitcoin pic.twitter.com/BvEdfUaA3g
— Mars (@Marsmensch) July 13, 2023
I just finished building my @SeedSigner and now I can’t sleep
— Chris Alaimo (@ChrisAlaimo6) November 16, 2022
Damn you @KeithMukai @ODELL!
My understanding of wallets has elevated even more after using my @SeedSigner 💥
— juan 👁🗨 (@juansebastiangb) April 15, 2022
Also I gotta try out @nunchuk_io pic.twitter.com/vzyWGh9faE
SeedSigner is the Linux of Bitcoin self-custody.
— Leonardo Martins (@snitramodranoel) July 20, 2023
I only trust my @SeedSigner at this point
— Logen 🧡⚡️ (@logandetty) May 16, 2023
Learn more
SeedHammer
Automatic engraving machine
The ultimate metal engraving machine for securely backing up your Bitcoin wallets: Protect your multisig and singlesig wallets by engraving seeds in plain text, SeedQR, and wallet descriptors onto robust 316L stainless steel Backup Plates
Free Open Source Software
The device is developed and maintained by the Free Open Source Software project SeedHammer. The entire code base is free to access and use on the projects Github repository.
Self-contained Multisig
The first and only multisig steel backup solution that does not need any additional information to be secured. The seed as well as the descriptor are recoverable with the chosen threshold of plates.
What people say
Just hammered my first Metal Plate with @SeedHammer ! Greatest #Bitcoin Innovation I`ve seen in a while.. SO GOOD, Thanks @Vulcan21com !! @Marsmensch @terahash_space @geyer_rachel @fabbitcoin21 @Justdoitalex
— ⚡LightningAmbassador⚡ (@LnAmbassador) September 14, 2023
(Don´t try my test seed – wallet is empty 😂) pic.twitter.com/NA7XjHRTzn
Just upped my Uncle Jim status 😎 @SeedHammer
— Stoney Bitson (@GhostOfStoneyX2) August 3, 2023
Stamping stainless washers was a neat way to touch grass with seed phrases but a PITA esp helping family + friends out.
Shipped to random vacant rental I scoped out (seemed cool opsec wise 😂 would not recommend). Burner, etc.
LFG pic.twitter.com/rLUcnmkbFD
1/
— Columbus Bitcoin PhD (@ColumbusBitcoin) July 29, 2023
Spent the afternoon with @amer_icon at his machine shop doing the first run of the #Bitcoin @SeedHammer backup device pic.twitter.com/mQGUyK2TwJ
They grow up so quick 🥹 @SeedMint21 @SeedHammer @blockmit_com pic.twitter.com/YHdAYndvUD
— Erik (@brikk_) April 17, 2023
@SeedHammer start them young…. pic.twitter.com/fgyGoVLNfF
— Jordan (@Jord_AnCap13) August 13, 2023
Sovereignty or nah? @SeedSigner @start9labs @SeedHammer pic.twitter.com/2Mxw9sa5pC
— ericjaffe (@ericjaffe) July 1, 2023
.@SeedHammer doing its thang at @TheBTCAdventure. 👀 pic.twitter.com/XsLw0S4lKH
— Nathan Day (@nathan_day) July 22, 2023
Some do! pic.twitter.com/xj7tDjivzh
— Erik (@brikk_) July 2, 2023
Just hammered my first Metal Plate with @SeedHammer ! Greatest #Bitcoin Innovation I`ve seen in a while.. SO GOOD, Thanks @Vulcan21com !! @Marsmensch @terahash_space @geyer_rachel @fabbitcoin21 @Justdoitalex
— ⚡LightningAmbassador⚡ (@LnAmbassador) September 14, 2023
(Don´t try my test seed – wallet is empty 😂) pic.twitter.com/NA7XjHRTzn
Just upped my Uncle Jim status 😎 @SeedHammer
— Stoney Bitson (@GhostOfStoneyX2) August 3, 2023
Stamping stainless washers was a neat way to touch grass with seed phrases but a PITA esp helping family + friends out.
Shipped to random vacant rental I scoped out (seemed cool opsec wise 😂 would not recommend). Burner, etc.
LFG pic.twitter.com/rLUcnmkbFD
1/
— Columbus Bitcoin PhD (@ColumbusBitcoin) July 29, 2023
Spent the afternoon with @amer_icon at his machine shop doing the first run of the #Bitcoin @SeedHammer backup device pic.twitter.com/mQGUyK2TwJ
They grow up so quick 🥹 @SeedMint21 @SeedHammer @blockmit_com pic.twitter.com/YHdAYndvUD
— Erik (@brikk_) April 17, 2023
@SeedHammer start them young…. pic.twitter.com/fgyGoVLNfF
— Jordan (@Jord_AnCap13) August 13, 2023
Sovereignty or nah? @SeedSigner @start9labs @SeedHammer pic.twitter.com/2Mxw9sa5pC
— ericjaffe (@ericjaffe) July 1, 2023
.@SeedHammer doing its thang at @TheBTCAdventure. 👀 pic.twitter.com/XsLw0S4lKH
— Nathan Day (@nathan_day) July 22, 2023
Some do! pic.twitter.com/xj7tDjivzh
— Erik (@brikk_) July 2, 2023
Learn more
SteelQR
Point & scan seed recovery
The SteelQR allows you to have the security of a 3mm stainless steel cold storage backup while providing the convenience of point & scan import. No need for teadious typing of your backup words for each transaction.
Maximum security
Stamp your own SteelQR with an automatic center punch. The QR-Code grid is precission lasered onto the brushed surface of the 3mm thick 316L stainless steel plates.
Widely compatible
The SteelQR plates are supported by the following software: SeedSigner, Foundation Devices Passport, Blockstream Jade, Specter DIY/Shield, Krux, SparrowWallet, BlueWallet.
What people say
SteelQR just arrived from @Vulcan21com and @Blockstream Jade is scanning it well 🔥
— Rich (@bitcoin__help) September 19, 2022
Will have to test another when Jade supports @SeedSigner‘s CompactSeedQR in the next firmware release pic.twitter.com/W0hxxaZyVI
Now that my account is no longer restricted, it’s time for a few shout-outs.
— Printer Go₿rrr ⚡ (@Printer_Gobrrr) April 28, 2023
#1 going to @antomousB and @Vulcan21com for supplying me with SteelQR plates in, once again, outstanding quality. Yes, that means QR Plates are back in stock, open orders are being shipped today. pic.twitter.com/ph8nstWiqw
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. pic.twitter.com/CgeCwRmCMk
— burn the bridge (@econoalchemist) May 19, 2022
Almost forgot to share that I had the pleasure of testing a @Vulcan21com 25×25 @SteelQR21 earlier in the week. The plate below was stamped with just an automatic punch, no inking. In the correct lighting these scan really well; excited to get them into more of our users’ hands. pic.twitter.com/jYoVMFhlFK
— SeedSigner (@SeedSigner) March 3, 2023
Also check out this beautiful package by @Vulcan21com w/ a few swag add-ons! Especially love the energy sticker 😂 #Bitcoin pic.twitter.com/BvEdfUaA3g
— Mars (@Marsmensch) July 13, 2023
Here’s a sneak peak at the fire test section: pic.twitter.com/BagbM8yGKb
— burn the bridge (@econoalchemist) May 20, 2022
Finally got me a SteelQR and I’m really impressed by the quality of this @Vulcan21com. I can already feel a little more peace inside knowing I’ll be getting it on this. Thanks for getting it here @btctwatterpants pic.twitter.com/HNsnVg2sD3
— Knoxville Bitcoin Network (@KnoxvilleBTC) June 30, 2023
18/25 A fire test was conducted bringing the plate up to just below melting point. Check out the video here: https://t.co/ZTb41ydbe5 pic.twitter.com/nlKbwikjTK
— burn the bridge (@econoalchemist) May 27, 2022
SEEDSIGNER WORKSHOP DAY!
— Dublin Bitcoiners (@DublinBitcoiner) July 1, 2023
Bitcoiners booked in ✅@SeedSigner tested ✅@Azteco_ vouchers printed✅
Sweaty palms ✅😅
A huge thank you to @Vulcan21com for the quality service and great products they offer! I can’t speak more highly of these guys! pic.twitter.com/dQN5ZZXsWs
Time for a first review on @SeedSigner SeedQR cold storage with Enclosure.
— SeedMint (@SeedMint21) September 3, 2022
Follow the thread 🧵 for Info on what has been done (so far) pic.twitter.com/BG2yDjPp1C
SteelQR just arrived from @Vulcan21com and @Blockstream Jade is scanning it well 🔥
— Rich (@bitcoin__help) September 19, 2022
Will have to test another when Jade supports @SeedSigner‘s CompactSeedQR in the next firmware release pic.twitter.com/W0hxxaZyVI
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. pic.twitter.com/CgeCwRmCMk
— burn the bridge (@econoalchemist) May 19, 2022
Now that my account is no longer restricted, it’s time for a few shout-outs.
— Printer Go₿rrr ⚡ (@Printer_Gobrrr) April 28, 2023
#1 going to @antomousB and @Vulcan21com for supplying me with SteelQR plates in, once again, outstanding quality. Yes, that means QR Plates are back in stock, open orders are being shipped today. pic.twitter.com/ph8nstWiqw
Almost forgot to share that I had the pleasure of testing a @Vulcan21com 25×25 @SteelQR21 earlier in the week. The plate below was stamped with just an automatic punch, no inking. In the correct lighting these scan really well; excited to get them into more of our users’ hands. pic.twitter.com/jYoVMFhlFK
— SeedSigner (@SeedSigner) March 3, 2023
Also check out this beautiful package by @Vulcan21com w/ a few swag add-ons! Especially love the energy sticker 😂 #Bitcoin pic.twitter.com/BvEdfUaA3g
— Mars (@Marsmensch) July 13, 2023
Finally got me a SteelQR and I’m really impressed by the quality of this @Vulcan21com. I can already feel a little more peace inside knowing I’ll be getting it on this. Thanks for getting it here @btctwatterpants pic.twitter.com/HNsnVg2sD3
— Knoxville Bitcoin Network (@KnoxvilleBTC) June 30, 2023
18/25 A fire test was conducted bringing the plate up to just below melting point. Check out the video here: https://t.co/ZTb41ydbe5 pic.twitter.com/nlKbwikjTK
— burn the bridge (@econoalchemist) May 27, 2022
SEEDSIGNER WORKSHOP DAY!
— Dublin Bitcoiners (@DublinBitcoiner) July 1, 2023
Bitcoiners booked in ✅@SeedSigner tested ✅@Azteco_ vouchers printed✅
Sweaty palms ✅😅
A huge thank you to @Vulcan21com for the quality service and great products they offer! I can’t speak more highly of these guys! pic.twitter.com/dQN5ZZXsWs
SeedBling


