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Topic: How do you transfer Bitcoins without an Internet connection? (Read 4307 times)

legendary
Activity: 1176
Merit: 1005
The trick is to prove that the privkey actually has value / has not been copied.

Bonded/insured company for xxx value insurance per coin? Would an insurance company even touch it?

Lloyd's of London will underwrite pretty much anything.  I'd imagine the transactions would have to be pretty large before it would be efficient to insure them, though.
legendary
Activity: 2156
Merit: 1393
You lead and I'll watch you walk away.
You honor us with your presence. Ladies and gentlemen say hello to one of the first members of the forum.

I'm of no importance at all really. Some of us just had to be here first, that's all.

I probably indirectly helped some here get very rich indeed though, myself not included.

How to start a movement: http://www.ted.com/talks/derek_sivers_how_to_start_a_movement.html

I guess I can say that I had the honor of communicating with Satoshi though.  Cool

Anyway, lets not send this topic way of base now.

Well, I know a lot of people that would love to have talked to Satoshi directly. Don't want to off topic anymore so I'll leave you with a simple - Welcome Back!
legendary
Activity: 2646
Merit: 1722
https://youtu.be/DsAVx0u9Cw4 ... Dr. WHO < KLF
You honor us with your presence. Ladies and gentlemen say hello to one of the first members of the forum.

I'm of no importance at all really. Some of us just had to be here first, that's all.

I probably indirectly helped some here get very rich indeed though, myself not included.

How to start a movement: http://www.ted.com/talks/derek_sivers_how_to_start_a_movement.html

I guess I can say that I had the honor of communicating with Satoshi though.  Cool

Anyway, lets not send this topic way of base now.
legendary
Activity: 2156
Merit: 1393
You lead and I'll watch you walk away.
Dead Drops ? https://www.youtube.com/watch?v=hwohadcUv4A

"Un-cloud your files in cement! 'Dead Drops’ is an anonymous, offline, peer to peer file-sharing network in public space."

Dead Drops - http://deaddrops.com/  Grin  Cool

Wow, that's something new. Greaat idea, not without it's problems, but still!

It's not really new though - three letter agencies have been doing this kind of stuff for years: https://wikipedia.org/wiki/Dead_drop

Combined with Geocaching it might be fun though!

See: http://www.geocaching.com/ and http://www.opencaching.com/

You honor us with your presence. Ladies and gentlemen say hello to one of the first members of the forum.
legendary
Activity: 2646
Merit: 1722
https://youtu.be/DsAVx0u9Cw4 ... Dr. WHO < KLF
Dead Drops ? https://www.youtube.com/watch?v=hwohadcUv4A

"Un-cloud your files in cement! 'Dead Drops’ is an anonymous, offline, peer to peer file-sharing network in public space."

Dead Drops - http://deaddrops.com/  Grin  Cool

Wow, that's something new. Greaat idea, not without it's problems, but still!

It's not really new though - three letter agencies have been doing this kind of stuff for years: https://wikipedia.org/wiki/Dead_drop

Combined with Geocaching it might be fun though!

See: http://www.geocaching.com/ and http://www.opencaching.com/
newbie
Activity: 58
Merit: 0
Printed keypair tokens are the ultimate anonymous transaction. No way to tell if the coins changed hands, or if they are accessible by anyone at all.  Long strings of transactions could be completed with no paper trail at all, digital or otherwise.
full member
Activity: 154
Merit: 100
The trick is to prove that the privkey actually has value / has not been copied.

Bonded/insured company for xxx value insurance per coin? Would an insurance company even touch it?
legendary
Activity: 1330
Merit: 1003
I like the idea of a handheld radio that can send a transaction (say over GMRS or MURS, but that might not be legal) to a receiver that would then send it over the Bitcoin network.

Sure, there wouldn't be a whole lot of use for it given the ubiquity of smart phones, but I like the idea of not depending (as much) on a mobile internet connection. Not to mention the device would be Bitcoin centric and therefore more secure.
legendary
Activity: 1708
Merit: 1006
Envision a 3-D printed plastic coin that has the privkey printed inside it. The only way to get at it is to break the coin open.

It is techically feasible to design an open source 3D printer software that could be married to a custom bitcoin client. That way the privkey could be encrypted end-to-end, and the only way to know the privkey is to break open the printed coin.
The trick is to prove that the privkey actually has value / has not been copied.

That's all in the software magic.
hero member
Activity: 784
Merit: 1000
0xFB0D8D1534241423
Creating transactions offline:
 - http://brainwallet.org/#tx

Won't work, as it loads the unspent outputs of the input addresses to generate a transaction to sign.

Can you generate a 'spend all unspents' transaction without a list of input keys?
Just give the recipient your privkeys.
full member
Activity: 154
Merit: 100
Creating transactions offline:
 - http://brainwallet.org/#tx

Won't work, as it loads the unspent outputs of the input addresses to generate a transaction to sign.

Can you generate a 'spend all unspents' transaction without a list of input keys?
legendary
Activity: 2506
Merit: 1010
How do you transfer Bitcoins without an Internet connection?

Which side doesn't have Internet ... the sender or the recipient (or both)?

From another thread:

In many areas of the world, there is not just limited connectivity, there is no Internet connectivity.   But does that mean those people would be shut out from using Bitcoin?

Is there a way that Bitcoin transaction can execute via sneakernet?   (i.e., the villager and his wallet stay home, but the transaction to pay was transferred to an agent which is then taken to a location that has Internet connectivity)?

Just as a bookend to this thread:
  - http://github.com/bitcoin/bitcoin/issues/271

Also:
Transactions when only one party is online
  - https://bitcointalksearch.org/topic/transactions-when-only-one-party-is-online-77608
 

Update: And these as well:
Desert island economy on Bitcoin without being connected to the internet?
 - https://bitcointalksearch.org/topic/desert-island-economy-on-bitcoin-without-being-connected-to-the-internet-106302

Creating transactions offline:
 - http://brainwallet.org/#tx
hero member
Activity: 980
Merit: 500
FREE $50 BONUS - STAKE - [click signature]
Dead Drops ? https://www.youtube.com/watch?v=hwohadcUv4A

"Un-cloud your files in cement! 'Dead Drops’ is an anonymous, offline, peer to peer file-sharing network in public space."

Dead Drops - http://deaddrops.com/  Grin  Cool

Wow, that's something new. Greaat idea, not without it's problems, but still!
hero member
Activity: 784
Merit: 1000
0xFB0D8D1534241423
Envision a 3-D printed plastic coin that has the privkey printed inside it. The only way to get at it is to break the coin open.

It is techically feasible to design an open source 3D printer software that could be married to a custom bitcoin client. That way the privkey could be encrypted end-to-end, and the only way to know the privkey is to break open the printed coin.
The trick is to prove that the privkey actually has value / has not been copied.
legendary
Activity: 1708
Merit: 1006
Envision a 3-D printed plastic coin that has the privkey printed inside it. The only way to get at it is to break the coin open.

It is techically feasible to design an open source 3D printer software that could be married to a custom bitcoin client. That way the privkey could be encrypted end-to-end, and the only way to know the privkey is to break open the printed coin.

The privkey would be printed on a vertical plane sandwiched closely between two other vertical planes. This way the privkey cannot be observed during the printing process.
mjc
hero member
Activity: 588
Merit: 500
Available on Kindle
full member
Activity: 154
Merit: 100
If you can completely deactivate the device (no NFC!)

Hard switch on the antenna would be nice  Smiley
legendary
Activity: 1734
Merit: 1015
http://bitcoincard.org/ <---this project could help.

I am concerned about the tracking abilities tho, but the video on the website says one can choose different IDs. If you can completely deactivate the device (no NFC!), as well as change the ID (not the User ID, but the ID of the device itself) or if there were no unique IDs, then this could be a really good solution.
full member
Activity: 174
Merit: 253
Bad idea, whoever get their hand on the paper wallet is able to read the private key and steal the bitcoins. Send a transaction, no one can steal it
Whoever can get their hands on your paper dollars can steal them! The point is not using the internet.

I think we need bitcoin bills. 1BTC, .1 BTC, .01 BTC. If we had 1million BTC in physical bills in circulation, things would get interesting.  
Anyone got a printing press?
   Did you see my previous post?
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