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

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3
votes
3answers
104 views

Generating a Bitcoin Address QR code with current USD price embedded?

I'm creating a Bitcoin QR link with my website, but I want to be able to just link to a page that generates the QR code with the current USD price equivalent of BTC in the QR. I tried blockchain.info, ...
0
votes
1answer
31 views

Generate QR Code tesnet

I would like to generate a bitcoin paper testnet wallet. A paper wallet is a QR code of a private key and a QR code of a bitcoin testnet address, I assume it can be generate juste like this link does :...
1
vote
1answer
68 views

First time buyer, questions before I screw up

I am wanting to buy BTC to buy goods but things are a bit confusing to me. First off, would I be better off buying from someone or a website, or use an atm? Once I purchase the BTC what is the best ...
-1
votes
1answer
34 views

Is there any platform where we scan a QR-code and receive the Bitcoin payment?

Like if I want to send 1 BTC to someone I give him a QR-code. He scans it and receives the money. You load your QR code with Bitcoin as payment voucher.
0
votes
1answer
60 views

Dog identifier in blockchain

I would like to print qr-code with transaction that contains my home address to print it for my dog's necklace. If dog will get lost everyone can scan it and get the address. How can I prepare the ...
0
votes
1answer
49 views

Which mobile apps support swiping/importing private keys via QR code?

The bitcoin.org site that provides a list of wallet clients doesn't clearly show which allow for importing bitcoin via a QR paper wallet. Does anyone know a location to see which support such features,...
2
votes
1answer
114 views

Do I need an app and internet on my smartphone to enable a Lamassu ATM to detect and scan my QR code?

I want to send bitcoins to a friend through a Lamassu ATM. She has emailed me her request QR code and when I went to the Lamassu ATM point, after pressing on the start button and showing the QR code ...
3
votes
3answers
3k 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
241 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
824 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
387 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
82 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?
4
votes
4answers
8k 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
1k 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
501 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.
15
votes
1answer
652 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. ...
10
votes
2answers
985 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
864 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 ...