Topic: The best Bitcoin cold storage? - page 7. (Read 19359 times)
I would keep it in a cheap fire proof safe
Engrave a piece of metal If you are planning to store a paper wallet for a long time and in the outdoors, you should just engrave a piece of metal. You can do it at the mall (Fast Fix) for a couple bucks. It will cost more than the little canister, but it will do a better job than writing it on a piece of paper. You could even put your engraved metal in the canister.
Simple as that. I'm not sure you need an x-ray machine.
Simple as that. I'm not sure you need an x-ray machine.
Cut a wound in your arm down to the bone and make notches on the bone instead of copper wire.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
+1
I just use Blockchain... Hopefully its safe enough
is it though??
I just use Blockchain... Hopefully its safe enough
is it though??
Well that escalated quickly.
Dude. That is NOT how a magnetron works. Magnetrons are oscillators, not accelerators. And the frequency is controlled by the geometry of the resonant cavities, not the voltage. If you increase the gate voltage, you might kill yourself, but you won't get x-rays.
Shut up before someone gets hurt.
The part about cathode ray tubes was correct.Shut up before someone gets hurt.
If you ever get your hands on a schematic for a CRT display you'll find marked components for X-ray protection. They keep the voltage in the flyback transformer from exceeding a value which could produce X-rays.
nobody would seriously try this. 
It's highly dangerous not to mention the risk of infection.
It's highly dangerous not to mention the risk of infection.
. . . You would be able to fashion your own x-ray machine using parts from old microwaves.
This seems unlikely.
As I understand it, microwaves have a wavelength of between 1 millimeter and 1 meter (longer wavelength than visible light). x-rays have a wavelength between 10 nanometers and 0.01 nanometers (shorter than visible light). Microwaves mostly tend to be absorbed by the body resulting in a build up of heat. X-rays mostly tend to pass through a body allowing an image to be captured on a film placed on the opposite side (and not building up much heat). I doubt you could fashion an x-ray machine from a microwave anymore than you could cook your food with an x-ray machine.
More energy needed for the higher wavelength of x-rays. You can make x-rays in a similar fashion to how a microwave works. ie by smashing electrons against a metal target.
Just need to up the potential used in your accelerator.
Do this by altering the coil windings or using two transformers etc. Just make sure your rectifier can handle the voltage increase.
A cathode ray TV might make more sense actually since the voltages are already alot higher.
Think a microwave is only about 2000 volts. A TV might be like 20,000 v I guess. In fact TV's have leaded glass in their screen for this reason. It can be dodgy to turn up the voltage too high when adjusting things inside due to x-ray dangers.
Hiding your bitcoin internally would keep it from the man. A laser could be used to burn the code into your retina!
Dude. That is NOT how a magnetron works. Magnetrons are oscillators, not accelerators. And the frequency is controlled by the geometry of the resonant cavities, not the voltage. If you increase the gate voltage, you might kill yourself, but you won't get x-rays.
Shut up before someone gets hurt.
why not store the paper wallet in the same place you store your car title.. house deed etc?
. . . You would be able to fashion your own x-ray machine using parts from old microwaves.
This seems unlikely.
As I understand it, microwaves have a wavelength of between 1 millimeter and 1 meter (longer wavelength than visible light). x-rays have a wavelength between 10 nanometers and 0.01 nanometers (shorter than visible light). Microwaves mostly tend to be absorbed by the body resulting in a build up of heat. X-rays mostly tend to pass through a body allowing an image to be captured on a film placed on the opposite side (and not building up much heat). I doubt you could fashion an x-ray machine from a microwave anymore than you could cook your food with an x-ray machine.
More energy needed for the higher wavelength of x-rays. You can make x-rays in a similar fashion to how a microwave works. ie by smashing electrons against a metal target.
Just need to up the potential used in your accelerator.
Do this by altering the coil windings or using two transformers etc. Just make sure your rectifier can handle the voltage increase.
A cathode ray TV might make more sense actually since the voltages are already alot higher.
Think a microwave is only about 2000 volts. A TV might be like 20,000 v I guess. In fact TV's have leaded glass in their screen for this reason. It can be dodgy to turn up the voltage too high when adjusting things inside due to x-ray dangers.
Hiding your bitcoin internally would keep it from the man. A laser could be used to burn the code into your retina!
. . . You would be able to fashion your own x-ray machine using parts from old microwaves.
This seems unlikely.
As I understand it, microwaves have a wavelength of between 1 millimeter and 1 meter (longer wavelength than visible light). x-rays have a wavelength between 10 nanometers and 0.01 nanometers (shorter than visible light). Microwaves mostly tend to be absorbed by the body resulting in a build up of heat. X-rays mostly tend to pass through a body allowing an image to be captured on a film placed on the opposite side (and not building up much heat). I doubt you could fashion an x-ray machine from a microwave anymore than you could cook your food with an x-ray machine.
Let's get even more extreme...
Store it in a strand of DNA? Then make the DNA recreate itself (I have no idea how this stuff works), and store the resulting biomatter in a container kept frozen. Whenever you need the data, just pick a small portion of the matter out and scan the DNA.
Store it in a strand of DNA? Then make the DNA recreate itself (I have no idea how this stuff works), and store the resulting biomatter in a container kept frozen. Whenever you need the data, just pick a small portion of the matter out and scan the DNA.
I just use Blockchain... Hopefully its safe enough
Cut a wound in your arm down to the bone and make notches on the bone instead of copper wire.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
What a nonsense!
Oh, wait, in fact you really might build bind of an x-ray from a microwave magneton!
Go ahead!
Post pics, you can blur out the actual code in your bone too ;-)
Ente
Cut a wound in your arm down to the bone and make notches on the bone instead of copper wire.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
When the wound heals, these notches might be visible on an x-ray machine.
This might be a good option for an apocalypse. You would be able to fashion your own x-ray machine using parts from old microwaves.
I thought of the stamp set but every set I found is just the capital letters. Maybe you could do the letters upside down to signify lower case.
Lower case alphabet sets are not hard to find ... not sure how hard you looked.
http://www.pjtool.com/metalalphabetlettersstampingset-1.aspx
The biggest flaw is the possibility for human error transcribing the private key ... whilst thinking of the millions that could go into your address your hands might start sweating, trembling and the hammer slips, letter's all askew and you've skinned your knuckles ...
Edit: you'll want at least 63 piece set or the deluxe 72 ... upper lower and numbers, punctuations also if you like http://www.ebay.com/itm/72p-Mazbot-2-5mm-Steel-Letter-Die-Stamp-Metal-Punch-Set-/270669621438#vi-content ... a nicely weighted ball-pen hammer is the best for stamping, could be useful against intruders looking for your private key hidey hole also.
Etch stainless steel or similar metal with chemicals:
http://www.wikihow.com/Acid-Etch-Steel
http://steampunkworkshop.com/electroetch.shtml
http://www.makersgallery.com/goss/etch.html
You could make the print rather small and clear and then store this in plain sight? In fact, you may be able to make it so small, it could only be visible with a magnifying glass.
http://www.wikihow.com/Acid-Etch-Steel
http://steampunkworkshop.com/electroetch.shtml
http://www.makersgallery.com/goss/etch.html
You could make the print rather small and clear and then store this in plain sight? In fact, you may be able to make it so small, it could only be visible with a magnifying glass.
Use your noodle? A strip of ally or copper should do fine ....
Google "Letter and Number Stamp Punch"
Edit: Run Linux LiveCD on offline computer, botg.sh https://bitcointalksearch.org/topic/bitcoin-off-the-grid-botg-secure-savings-script-v011-23081 (on a clean USB stick), metal strip, number-letter punch and you're done. Probably as simple, and cheap as you can get, yet effective.
Google "Letter and Number Stamp Punch"
Edit: Run Linux LiveCD on offline computer, botg.sh https://bitcointalksearch.org/topic/bitcoin-off-the-grid-botg-secure-savings-script-v011-23081 (on a clean USB stick), metal strip, number-letter punch and you're done. Probably as simple, and cheap as you can get, yet effective.
Or you can easily scratch copper with any hard sharp object.
Or you could use a piece of wire and make notches every so many mm apart indicating 1-16 hex. That would take max. 1m, but more likely a half meter.
(I'd make mine the seed for an Electrum wallet, and that's only 32 hex digits, mine took <12cm - though you could just scratch the words on copper.) I like ways that are free and immediate, and I have copper wire anyway. (You can actually slip the plastic coating back on and it's "invisible"
)
I'll take a look at the media safes.
Do you know how I could etch the key without owning laser etching equiment or similar tools?
etch your key onto a small piece of metal and store the metal in a heat proof box.
Do you know how I could etch the key without owning laser etching equiment or similar tools?
Use your noodle? A strip of ally or copper should do fine ....
Google "Letter and Number Stamp Punch"
Edit: Run Linux LiveCD on offline computer, botg.sh https://bitcointalksearch.org/topic/bitcoin-off-the-grid-botg-secure-savings-script-v011-23081 (on a clean USB stick), metal strip, number-letter punch and you're done. Probably as simple, and cheap as you can get, yet effective.
I have to say, that's just brilliant.
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