Careful with blockchain.info. I used them for the first time just before the fork. When I went to return my coin to coinbase, the laptop scanning tool on Blockchain.info failed and lost me 5 BTC! It was NOT user error. I was able to figure it out and recreate the bug last night. here is a video of me recreating the problem after I figured out what was happening:
I let Blockchain.info know about this critical bug last night and they simply responded that it was MY FAULT! How can buggy scanning software be blamed on the user? I scan because I don't trust my ability to get the entire hash perfect! Scanners are supposed to be perfect. Here is the conversation I had with blockchain.info:
URGENT your wallet scanner is broken and just cost me 5 BTC
Avatar Today at 00:42 I lost 5 BTC today on your system due to a really tricky bug.
I tried to send 5BTC to coinbase. I did the normal thing. I pulled up a QR code, scanned it (this way I can't get it wrong, or so I thought) and then clicked send. 5 hours later it had confirmed that it had sent, but it never arrived. I was baffled. So I started trying to recreate any potential problem. Here is what I found:
I am on a new macbook pro 13 inch with 10.12.06 and I am using Chrome. I scanned a wallet on my coinbase app from my phone using the macbook camera feature you have built into the app. I have scanned QR codes hundreds of times over the years on different apps and I have never had a problem. But on your app it is broken and lost 5 BTC.
To recreate the problem I first copied the hash from coinbase so I had a reference. Then I scanned the same code by QR on my macbook. They ended up COMPLETELY DIFFERENT. I believe what is happening is that the camera is mirroring the image your system is getting a mirrored version of the wallet [UPDATE – that was just a guess that has been proven wrong, I still can't figure out what the heck happened]. Today I lost 5BTC plus the cost of the transaction due to this bug. This bug can be recreated over and over and over again.
I hope that where I found this bug, and it wasn't user error, that you will make up for the 5 BTC I lost. It is a significant portion of my wife and my own savings. We have been putting away a small portion of our income in BTC for the past couple of years and a huge chunk just vanished simply because of a bug in your system. First I hope you can fix it quickly so someone doesn't loose MUCH MUCH MORE. Then, I hope you can make it right as your system is completely based on trust. If you can show me the bug is fixed and you can make it right financially for my losses, I would be happy to just keep the bug between us as we are the only ones affected at this point.
Here is a video I just made of me recreating the problem: https://youtu.be/MFj3HcLuWSs
BTW this was my first experience on your system (I moved my BTC here because of the fork). I was very pleased with how it all worked, but then shocked to find such a terrible bug.
Today at 00:48 If you can compensate me for the 5.00022374 BTC I lost, here is a coinbase address you can send it to: 1NqGsghoWMiGezrNyv7Abjoqmf4ftx7an4
HERE IS THEIR RESPONSE.
Avatar Mandrik Today at 11:14 Hello,
I'm sorry to hear of this trouble, but the bitcoin network is designed to make chargebacks impossible. Blockchain.info never has access or control of a user's bitcoins in any way. The end user has 100% control over his or her own bitcoins. This means we have no power to stop, reverse or initiate a transaction on anyone's behalf.
NO THANKS FOR FINDING THE BUG. OR EVEN ACKNOWLEDGING THE BUG. IT IS ALL MY FAULT…
I assume I won't be getting back my 5 BTC, but I figured the world needs to know about my experience with the world's number 1 bitcoin wallet.
Here is the wallet that I lost my BTC to: 16H5t2a9vgTS2vRgu3nvmRneQymwV6XjFq
Any ideas on a way to get blockchain.info to own up to their bug?