A kind of two-dimensional barcode that can be scanned by many smartphones. They can be used to encode URLs or Bitcoin addresses.

learn more… | top users | synonyms

1
vote
3answers
1k views

Bitcoin QR codes: raw address or Bitcoin URI scheme

I am the author of bitcoinaddress.js library and I am wondering what's the best content for Bitcoin QR codes. What Bitcoin QR codes should contain (for mobile wallet apps and other barcode scanners): ...
0
votes
2answers
154 views

How do you generate a QR code for a not so popular coin?

I'm running a the datacoin-qt client and was wondering how do you generate a QR code? This is relatively a new coin and I can generate an address, but I'm not sure where I can goto to generate a QR ...
0
votes
2answers
370 views

Bitcoin transfer through QR codes

Ok, so let's say I have a wallet with 1 BTC in it. Is it possible to transfer that balance to a QR code or some type of barcode? I want to know if it's possible to basically print out a piece of ...
1
vote
1answer
251 views

How to scan QR code with multibit wallet application?

I downloaded the multibit application for windows and was wondering if there was a way to scan a QR code with my webcam? If so where do I click because I dont see an option and no way am I going to ...
-1
votes
1answer
76 views

Any examples of Bitcoins being used to buy bonds to build a Digital Community [closed]

Does anyone have examples of bitcoins being used to buy bonds to build a digital community?
2
votes
4answers
3k views

What are QR codes and How do you use them as request payment from Wallet?

What are QR codes ? How do you use the QR code for payment function on the wallet ? When would you use it ?
3
votes
2answers
707 views

Is there an Android app that will scan a QR code and show the balance?

What I'm looking for is an app that lets a person scan a QR code containing a Bitcoin address and then see the balance and transaction history for that address. For a specific use case, a mobile ...
1
vote
1answer
421 views

Which mobile apps allow me to redeem a private key from a QR code?

Which mobile apps will let me scan a QR code of a private key (such as the one created by BitAddress) and then spend the funds from that coin? Please specify Android, iPhone (iOS), etc.
14
votes
1answer
554 views

Given a private key, how do you get a public address [duplicate]

Possible Duplicate: How are public & private keys in an address created? I am scanning in a private key from a QR code in an app I am writting to handle the import of physical bitcoins. ...
9
votes
3answers
784 views

Using QR codes for bitcoin giveaway

Suppose I wanted to have a bitcoin treasure hunt, where QR codes were used. The first person who scanned a given QR code should receive some preset amount of bitcoins. Is this possible? (Preferably ...
10
votes
7answers
724 views

What additional benefits can QR codes bring to Bitcoin applications beyond payment requests?

Anyone who has recently used one of the Bitcoin wallets on a mobile device (and some desktop clients) will have seen a Bitcoin QR code. Clearly, QR codes allow for a succinct method for transferring ...