Unanswered Questions

14
votes
0answers
786 views

Was a timejacking attack ever performed?

The timejacking attack appears to be a pretty straightforward attack to pull off successfully. I was wondering, whether it was ever performed and documented somewhere, or was it just theoretically ...
10
votes
0answers
371 views

Peergroup download of the blockchain stalls?

I'm using bitcoinsharp to build my client. I try to download the blockchain in a peergroup network. Download starts, but when progress is 98%, the download is stopped & the client is waiting (2 ...
8
votes
0answers
409 views

Is there a good tutorial on how to use bitcoinjs exit nodes?

The documentation that I found seems to contain info about specific API calls, but no top level explaination/example. Where can I find a practical concise example of using exit nodes? I'd like to ...
5
votes
0answers
56 views

Which block() method does what?

In the main.cpp bitcoin code, there are a few different functions for managing blocks. ProcessNewBlock() AcceptBlock() CheckBlock() ConnectBlock() DisconnectBlock() What is a good summary for what ...
5
votes
0answers
338 views

Law / country specifics to start Ripple Gateway

There is requirement in https://ripple.com/wiki/Gateway_Integration_Manual Gateways should comply with the BSA, have AML policies and require KYC information. As i understand this requirements can be ...
4
votes
1answer
26 views

How can services that use the bitcoin blockchain help secure it?

There are many projects being worked on that involve using the bitcoin blockchain for its public verifiability and immutability. A few examples would be Counterparty, Medici, Factom, etc. But each use ...
4
votes
0answers
26 views

Provable Solvency Implementations

Is there a list of provable solvency implementations? It appears to be that each company is taking their own unique swing at the problem. This strikes me as an area that could benefit from ...
3
votes
0answers
75 views

HD wallets with an exposed child private key

HD wallets as described here are built based on a master seed and a master public key as follows: PK.b = PK.a + sG SK.b = SK.a + s I just got a little confused about this. Is s the mnemonic seed ...
3
votes
0answers
78 views

What could be the reason for one loop being significantly more power hungry on an SP20?

One of the loops on my Spondoolies SP20 is misbehaving. I underclocked everything but this loop (number 4) does not seem to care what settings I make. It seems to be running at twice the speed (and ...
3
votes
0answers
113 views

GPU mining strategies (algorithm)

I am currently in the process of creating a fairly simple bitcoin miner for CPU and GPU (for demonstration purposes not for money earning). However I am having a little troubling understanding how ...
3
votes
2answers
102 views

Getting historic exchange data through an API

I'm trying my hands on a trading bot, but I need a website to pull trade data for min. the last 3 days. This can be from any major exchange. Eg. the exact same as this: ...
3
votes
0answers
106 views

Is there a way to specify an invoice ID in Ripple URI?

In Ripple payment transactions we can specify an invoice ID that is used to make payments for a particular invoice. Is there a way to specify such an invoice ID in Ripple's URI scheme?
3
votes
0answers
74 views

How did short positions work on Bitcoinica?

I'm trying to find information on CFDs and exactly how Zhou Tong utilized them to short, but am coming up dry.
3
votes
1answer
304 views

Bitcoin Client - How do I find the destination address of an incoming transaction?

I'm mining Bitcoins and have multiple incoming addresses in my bitcoin-qt wallet. When I get a payout for mining in the "Transactions" tab it shows the amount of BTC I received and the type is set ...
3
votes
0answers
276 views

Vanity Mining Error?

Well after getting a new graphics card (7770) I can mine bitcoins at around 120 - 180 Mhash/s Depending if I run it at full power or not. Now I thought I would try and mine myself an address using it ...

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