If someone has their name on an empty envelope, hands it to me, I press the Litecoin Private key print button. The printed side of the laser printer is face down. I take the paper off the printer, folding the private key out of view without seeing it. I scan the public key only, place it in the envelope, seal it, an put it in the vault, then turn off the PK printer device with no local storage. I'd be pretty sure there is no other copy of the private key.
If I print a keypair at home, put it in my own sealed envelope, take it to my private bank and place it in my safe deposit box, i'd also feel safe.
I personally have over 20 paper wallets in various coins and denominations, stored in vaults outside my home. I've given them as graduation gifts, teasers that spurred people to learn and get their own coinbase account. I've sold papers to family for $10 to $300 each.
I've worried about people losing the paper, or letting it be seen. I've lectured them about it. I've cashed many of mine as tests. Before I knew how to create my own paper, I bought a keypair card from ebay, loaded it with what now is over $100 of bitcoin($15 then), gave it as a birthday gift, then later found out the seller stole the money I put on it, though the key foil was still unscratched.
Like Colt, Remmington, and gunpowder, I think Satoshi would be proud I'm actually using his invention, though it is more dangerous than using Chase, Bank of America, or the bow and arrow that came before. We are reckless pioneers.
Topic: I want to buy cashless bitcoin ATM for $1,000 (Read 278 times)
I would advise you to be very careful with accepting private keys on your physical vault.
The funds on the private key wouldn't be any safer and the depositor may claim theft on a transaction initiated by him/herself. There is no way to prove there is just one copy of the private key.
The funds on the private key wouldn't be any safer and the depositor may claim theft on a transaction initiated by him/herself. There is no way to prove there is just one copy of the private key.
The youtube link is neat. Too bad they are out of business. I think writing my own open source software may be best. The time is worth a lot more than $1,000 though. I'll dream up a system here and maybe copy it to a new github project later.
Private Key printer:
Offline/airgap private key kiosk that accepts $1 bills or a store owner PIN. No screen, maybe 3 buttons for BTC, ETH, and LTC. Based on a $200 Minix NEO or Rasberry Pi and a cheap laser or thermal printer.
They can skip this PK printer if they bring their own smartphone or paper wallets or generate their own PKs at home.
Public Internet PC:
Hardware:
Minix NEO Z83-4 Win 10 PC, $200
No printer
QR barcode scanner, $40
Touch screen, $150
Software:
Touch screen windows shortcut buttons to
https://www.myetherwallet.com
https://blockchain.info
and similar wallets that accept scanned public and private keys.
Touch screen conversion calculator linked to coinmarketcap.com with easy buttons to convert $20USD.
Pen and paper or $70 Brother Laser for note taking. They can also email themselves.
Warning Sign to not generate PKs on the public PC and to spend full wallet after scanning PKs.
They can skip this PC if they have a smart phone and know how to use it.
Funding PC:
Shop owners existing PC and cash drawer
They can use Coinbase, trezor, or whatever they want.
Requires a little training, but involves exchange profit and customer interaction so they would learn quick.
Physical vault:
Maybe some customers would ask them to store their private keys in a vault or safe deposit box. Customers do it with gold diamonds, and guns, so why not private keys?
Private Key printer:
Offline/airgap private key kiosk that accepts $1 bills or a store owner PIN. No screen, maybe 3 buttons for BTC, ETH, and LTC. Based on a $200 Minix NEO or Rasberry Pi and a cheap laser or thermal printer.
They can skip this PK printer if they bring their own smartphone or paper wallets or generate their own PKs at home.
Public Internet PC:
Hardware:
Minix NEO Z83-4 Win 10 PC, $200
No printer
QR barcode scanner, $40
Touch screen, $150
Software:
Touch screen windows shortcut buttons to
https://www.myetherwallet.com
https://blockchain.info
and similar wallets that accept scanned public and private keys.
Touch screen conversion calculator linked to coinmarketcap.com with easy buttons to convert $20USD.
Pen and paper or $70 Brother Laser for note taking. They can also email themselves.
Warning Sign to not generate PKs on the public PC and to spend full wallet after scanning PKs.
They can skip this PC if they have a smart phone and know how to use it.
Funding PC:
Shop owners existing PC and cash drawer
They can use Coinbase, trezor, or whatever they want.
Requires a little training, but involves exchange profit and customer interaction so they would learn quick.
Physical vault:
Maybe some customers would ask them to store their private keys in a vault or safe deposit box. Customers do it with gold diamonds, and guns, so why not private keys?
I want to install a bitcoin machine at my family pawn and gold shop.
Would something like this work for you? https://youtu.be/7hOnqGc6IvE?
Basically you would need a UI developed. The only thing you would need other than a normal kiosk computer is a thermal printer which is available for less than $30.
I don't know of any ready made solutions for what you want to achieve.
I don't know of any ready made solutions for what you want to achieve.
I want to install a bitcoin machine at my family pawn and gold shop. They know little about computers and bitcoins, but a lot about cash and security. Is there a self service, wifi bitcoin scanner+printer machine for around $1000 that I can buy for them?
I can help them put another $1000 in a bitcoin wallet and link them up to fund it, then if customers sell bitcoin it could print a cash receipt for them to pay out in cash from their existing till. If customers buy, then the shop owner can take the cash and enter a password for the customer or something.
Two features I want are easy for customers and easy for shopkeepers. Low limit transactions under $300 is fine. I want it to work with no third party company. It should communicate to public bitcoin only. Even no fee is fine, but im sure the software can build in an adjustable fee or selectable conv rates. In this way they can trade merchandise or gold without cash and ID customers on their own without a 3rd party company. Altcoin is also ok.
I could teach them how to use blockchain.info, bitaddress.org, a handheld scanner and printer to do the same thing. I may have to. There is some magic in customers interacting with a machine directly though. Bitcoin is all about letting the (software) machine do the work, instead of people like governments and bankers. A machine for the initial customer interaction may be worth $1,000 here compared to a human teller only. Full machines are $5-10K. I don't think I'm ready for that investment yet.
I can help them put another $1000 in a bitcoin wallet and link them up to fund it, then if customers sell bitcoin it could print a cash receipt for them to pay out in cash from their existing till. If customers buy, then the shop owner can take the cash and enter a password for the customer or something.
Two features I want are easy for customers and easy for shopkeepers. Low limit transactions under $300 is fine. I want it to work with no third party company. It should communicate to public bitcoin only. Even no fee is fine, but im sure the software can build in an adjustable fee or selectable conv rates. In this way they can trade merchandise or gold without cash and ID customers on their own without a 3rd party company. Altcoin is also ok.
I could teach them how to use blockchain.info, bitaddress.org, a handheld scanner and printer to do the same thing. I may have to. There is some magic in customers interacting with a machine directly though. Bitcoin is all about letting the (software) machine do the work, instead of people like governments and bankers. A machine for the initial customer interaction may be worth $1,000 here compared to a human teller only. Full machines are $5-10K. I don't think I'm ready for that investment yet.
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