 Show Posts
|
|
Pages: « 1 2 [3] 4 »
|
I saw in another thread that someone is able to get 5+ Mkey/s out of their laptop with oclvanitygen. I am sure I am doing something wrong with the parameters trying to get it working, still only getting about 100 Kkey/s using these parameters:
oclvanitygen -f list.txt -D 0:0 -w 512
on a Lenovo laptop with 64bit Win7. According to oclvanitygen I have:
0: i5-3320M CPU @ 2.60GHz
1: Intel HD Graphics 4000
Can anyone share what are your typical input parameters or provide pointers?
It's my guess you are running the opencl vanitygen on your CPU and not GPU. I have laptop with an Intel HD graphic, but never got the right drivers (ubuntu) working to run opencl on the graphic card. But maybe the drivers for windows do work. Could you try to run the cpu version (vanitygen64.exe) an check if the speed increases? With an I5-CPU@2.6G you must be able to get >400kKey on the CPU. update: I tried modifying the -D parameter to 0:1 and now have this error: Compiling kernel, can take minutes...failure.
clBuildProgram: CL_BUILD_PROGRAM_FAILURE
Build log:
:173:19: error: __constant variables are required to be initialized
__constant bignum bn_zero;
^
1 diagnostic generated.
error: front end compiler failed build.
Device: Intel(R) HD Graphics 4000
Vendor: Intel(R) Corporation (8086)
Driver: 8.15.10.2696
Profile: FULL_PROFILE
Version: OpenCL 1.1
Max compute units: 16
Max workgroup size: 512
Global memory: 1702887424
Max allocation: 425721856
Could not open device '0:1', ignoring
Available OpenCL platforms:
0: [Intel(R) Corporation] Intel(R) OpenCL
0: [Intel(R) Corporation] Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz
1: [Intel(R) Corporation] Intel(R) HD Graphics 4000
C:\temp\vanitygen> |
|
|
|
I saw in another thread that someone is able to get 5+ Mkey/s out of their laptop with oclvanitygen. I am sure I am doing something wrong with the parameters trying to get it working, still only getting about 100 Kkey/s using these parameters:
oclvanitygen -f list.txt -D 0:0 -w 512
on a Lenovo laptop with 64bit Win7. According to oclvanitygen I have:
0: i5-3320M CPU @ 2.60GHz
1: Intel HD Graphics 4000
Can anyone share what are your typical input parameters or provide pointers?
It's my guess you are running the opencl vanitygen on your CPU and not GPU. I have laptop with an Intel HD graphic, but never got the right drivers (ubuntu) working to run opencl on the graphic card. But maybe the drivers for windows do work. Could you try to run the cpu version (vanitygen64.exe) an check if the speed increases? With an I5-CPU@2.6G you must be able to get >400kKey on the CPU. vanitygen64 gives me 550Kkey/s. oclvanitygen is much slower, that is why I know I am doing something wrong. |
|
|
|
|
I saw in another thread that someone is able to get 5+ Mkey/s out of their laptop with oclvanitygen. I am sure I am doing something wrong with the parameters trying to get it working, still only getting about 100 Kkey/s using these parameters:
oclvanitygen -f list.txt -D 0:0 -w 512
on a Lenovo laptop with 64bit Win7. According to oclvanitygen I have:
0: i5-3320M CPU @ 2.60GHz
1: Intel HD Graphics 4000
Can anyone share what are your typical input parameters or provide pointers?
|
|
|
|
Why do you say there is no private key for the bytes? Can you elaborate the reason? My guess is that those coins are possibly recoverable unless the person who sent the puzzle is a sicko  1000 satoshis is very less, affordable amount to lose so its possible that the coins went into a blackhole.. But I think this is unlikely. Well, when bitcoin rises to, lets say, 10m$/BTC probably it will be not "very less". 10m$/BTC? I would like to bet 10m$ that it won't get to 10m$/BTC  |
|
|
|
|
you are talking about entering a crowded and well funded market. what would be the unique value proposition of your exchange?
|
|
|
|
This Coindesk article describes how bitnet allows for instant approvals for merchants based on probability of the transaction later confirming... based on transaction propagation times etc. This is in line with my thinking and counters the double spend attack mentioned above where two people on other sides of the planet spend simultaneously. If the transaction is propagating at the normal rate, and not being rejected by any nodes (possible double spend detected) then notify merchant of approval. I like this solution, fast and effective. http://www.coindesk.com/bitnet-launches-instant-approval-tool-for-bitcoin-merchants/ |
|
|
|
This is the third story today by someone who asserts their brilliance by saying: "we are interested in blockchain; bitcoin not so much". It is meant to show you are a bigshot if you can put forth another version of this over-used line. Here is one: http://www.cityam.com/220231/why-i-chose-float-fintech-business-london
Here is another: c-touts-blockchain-tech-for-trade-finance/ It reminds me of the time an English man was explaining to his son on an airplane that: 'it is the wings that makes the airplane fly'. I immediately thought - it's the fucking engine that makes it fly - and the rudder too, and the cockpit too, and the pilot too. Even the landing gear - although I'd have to argue the landing gear makes it fly again. There isn't such thing as Bitcoin or blockchain. Bitcoin includes a blockchain and a bunch of other stuff. Go ahead, try to make your blockchain without some bitcoin behind it. Let's see where that will get you. People need to quit showing how smart they are by expressing their keen interest in the 'blockchain' while at the same time saying 'bitcoin' isn't so interesting. All this really does is show you don't understand cryptocurrency. There is not blockchain without bitcoin. The Blockchain is beautiful technology. The Bitcoin network is the greatest example of this beautiful technology in action. However not all applications of the Blockchain will be in the public sphere, for example Western Union might create a Blockchain where their 'Public' ledger is located within their country HQ nodes. Banks might create a Blockchain for storing customers accounts, the nodes are located in each regional headquarters (or even in each bank branch!). The point is there really are good applications for the blockchain outside the Bitcoin network. We should not feel threatened by these, they are not applications as they are not competing with Bitcoin which is a cryptocurrency in the public domain. Bitcoin is strong not only because of its network but because its technology has not been disproven. I personally welcome any private companies investing in R&D in the blockchain as it only benefits us all in the end. BTW your aeroplane analogy doesn't fly with me, the Bitcoin network could be represented by the the airports and flight routes which you didn't mention, the rest is all part of the Blockchain. There's no need to invest ridiculous amount of money on your own blockchain if you want a different behavior, you just use side-chains once properly implemented so everything stays within the Bitcoin security. where exactly are the ridiculous amounts of money being spent? a bank can implement their own blockchain by deploying a server in each region. they can mine with the server CPU because it is not an arms race to get more hashing power. with this small Blockchain network they can store all customers transactions in a decentralized and secure fashion. Remember the 51% attack is based on a percent of hashing power, all bank nodes can mine on CPUs to secure the network like we once did. I think too many people are fixated on the Bitcoin Blockchain as the solution for everything. For internal applications where there is no hashing power arms race, creating a new network is a perfectly good application of the technology. |
|
|
|
I've attempted to understand the technicalities of blockchain analysis, but some basic yet critical piece seems to have escaped me. Even if one could theoretically tumble their coins a enough times and remove all taint, why would it matter if someone is tracking you already? If they know you have a wallet with dirty coins, don't they "have your number" and could follow your transactions regardless of whether the BTC in your wallet are dirty anymore or not?
There are apparently more possible Bitcoin addresses than grains of sand on Earth, and addresses are free, your software can generate a new one for you instantly. Given that new addresses are free and convenient you wouldn't send your tumbled coins back to your old address would you? The point of the tumbler is to break the connection. |
|
|
|
and how is it exactly that you associated this change with Bitcoin? and what good work are you doing that you think you need to keep up? Branches and ATMs disappearing is typical of the industry trend to online banking. |
|
|
|
Bitcoin value is unstable compared to all fiat values. So if you are in business and use fiat to pay merchants then Bitcoin is not currently suitable for you unless you convert to fiat immediately. If you are a speculator then welcome to the group. We believe the only way is up. HODL and smile |
|
|
|
This is the third story today by someone who asserts their brilliance by saying: "we are interested in blockchain; bitcoin not so much". It is meant to show you are a bigshot if you can put forth another version of this over-used line. Here is one: http://www.cityam.com/220231/why-i-chose-float-fintech-business-london
Here is another: c-touts-blockchain-tech-for-trade-finance/ It reminds me of the time an English man was explaining to his son on an airplane that: 'it is the wings that makes the airplane fly'. I immediately thought - it's the fucking engine that makes it fly - and the rudder too, and the cockpit too, and the pilot too. Even the landing gear - although I'd have to argue the landing gear makes it fly again. There isn't such thing as Bitcoin or blockchain. Bitcoin includes a blockchain and a bunch of other stuff. Go ahead, try to make your blockchain without some bitcoin behind it. Let's see where that will get you. People need to quit showing how smart they are by expressing their keen interest in the 'blockchain' while at the same time saying 'bitcoin' isn't so interesting. All this really does is show you don't understand cryptocurrency. There is not blockchain without bitcoin. The Blockchain is beautiful technology. The Bitcoin network is the greatest example of this beautiful technology in action. However not all applications of the Blockchain will be in the public sphere, for example Western Union might create a Blockchain where their 'Public' ledger is located within their country HQ nodes. Banks might create a Blockchain for storing customers accounts, the nodes are located in each regional headquarters (or even in each bank branch!). The point is there really are good applications for the blockchain outside the Bitcoin network. We should not feel threatened by these, they are not applications as they are not competing with Bitcoin which is a cryptocurrency in the public domain. Bitcoin is strong not only because of its network but because its technology has not been disproven. I personally welcome any private companies investing in R&D in the blockchain as it only benefits us all in the end. BTW your aeroplane analogy doesn't fly with me, the Bitcoin network could be represented by the the airports and flight routes which you didn't mention, the rest is all part of the Blockchain. |
|
|
|
|
I don't recommend Bitcoin. Bitcoin does not currently fit into everybody's lives, and it is complex still. I only talk about it to people who ask me proactively about it.
Think about Bitcoin as a religion. Evangelizing it may annoy people or it may get people interested, but you will get the blame when their stuff doesn't work out. Letting people know it is your hobby is more passive, some people will laugh and quote the common misconceptions about Bitcoin, some will proactively ask questions. I am always ready and willing to help those who proactively ask questions with an open mind.
Remember that Bitcoin is a journey and we are only a small way through that journey. Show your passion but take care when making recommendations.
|
|
|
|
I have done this experiment with my kids, and it's remarkable how much less they spend, when they handle money. The touching and the feeling of a physical thing, kind of bonds you to it. This is why vending machines and slot machines in gambling replaced the coin operation in my opinion, with smart cards. The emotional bond to money is broken and people tend to spend more.  Bitcoin makes a lot of other things easier, but it might increase spending habits and increased debt. That is true. When you hold physical cash you will think twice before spending it. But same is not with the credit cards,debit cards or even bitcoins as you know that paying with credit cards gives you some added time to pay so people spend more but same doen't goes with physical cash. The thing that I can't understand is all this stuff that people fight over kids learn in school, and NO ONE cares that children aren't taught financial literacy in high school! I mean ALL students should have a mandatory financial education class that teaches the lifetime value of living within your means, the dangers of auto loans, credit card debt, and building wealth. I think the fact that this stuff is excluded from curriculum is sad and frankly intentional. It would be the best way for young people to start their lives out on the right foot, be able to buy a house/build wealth from early on, not learn the hard way after they get out of college with 100k in student loans and 20k in credit card debt. Starting out your adult life like that is not good, and makes it tough to gain financial independence. Then again, the debt masters of the world want you to remain a debt slave forever... financial literacy could/should be taught in the home. firstly by being a good role model. and secondly by building on the maths they learn in school to explain real life financial applications. Read the book Rich Dad Poor Dad to see how all this fits together. |
|
|
|
But it could be possible to temporarily fake a human out and make them think they had real bitcoin which is all that is required for an effective counterfeiting operation. Eventually the sucker will find out their duped but by then the thief could be long gone.
I like the question, it is forcing us to think about Bitcoin from a newbie perspective again. and @grendel25 has pointed out an interesting scenario, setting up a fake bitcoin network, with fake wallet and all. agreed this would only dupe a newbie who hasn't done their groundwork... but how many Bitcoin newbies are there out there to be picked off... I can see the new Nigerian scam, download your new wallet from "here" and lets transact. |
|
|
|
|
Can Blockchain provide log information about the user session which moved the btc, IP address, operating system, browser type etc? That can help try to prove to them that it was not you, therefore be more helpful and friendly to you.
Also I suggest you keep control of the Blockchain account containing the Bitcoin address that was stolen from. In the future maybe the authorities may be willing to investigate such crimes (when 1 BTC = 1Million USD!), so you need to prove you are the owner of that address.
|
|
|
|
|
When a node receives information about a newly solved block it will update itself. It will create a new block to solve with the transactions it has already received. This process should take fractions of a second. Then the process of mining the block (trying to solve the block it created) begins.
According to my logic there is no advantage to creating an empty block to solve. And the miner misses out on the small amount of transaction fees.
Correct me if I am wrong?
|
|
|
|
As others have said, it's more about doing something you love while earning that wealth. Otherwise it's like climbing a ladder thinking things are super-exciting once you get to the top, but you never get to the top to get that feeling, long before that, you fall off the ladder and die without ever having allowed yourself that peak experience of contentment. I say try to pick the most interesting ladder that you can, that way you can just keep doing what you're doing as you go along. Then it's not about the wealth, more the quality of life experience. Well it depends on the situation or on the person
Actually i onced asked a rich guy (my classmate in college) before if is it fun being wealthy.
He said at first it is but as he grew older, he's getting tired of it and he wanted to try something born rich people didn't experienced (being poor ) so he hang out with me (yes, i'm a poor guy) and showed him our(poor people) world. He said it was hard but it was fun and he really admire me on how i can survive on that situation
Lol. Man. That's a touch insulting. Having been born poor myself, I think I would have taken him to the worst areas I know and left him there at 3am in the morning and told him to enjoy himself. When your poverty is another persons 'rich' experience, you should start charging for the ride. Put an ad somewhere: ' Rich and bored? Come experience the shit life with me! I'll take you lower than you've ever been before, and show you things that'll turn your nose up like you wouldn't believe. Just 4 BTC a day. McDonalds meals not included. Bring your own pack lunch, but not salmon sandwiches, or we'll end up getting the crap kicked out of us both due to your culinary faux-pas while were traversing the post-apocalyptic wasteland called 'The Projects.' https://www.youtube.com/watch?v=yuTMWgOduFMlaugh sign me up. send me the link to the registration page. and if I don't get pick-pocketed and headbutted I will be very dissapointed  |
|
|
|
I will let you know when I get there Seriously though wealthy people rarely have completely passive investments. In addition the more wealthy you are the more difficult it is to make sure all that money is making a healthy return. We watch the market for hours to buy one bitcoin, wealthy would want to buy thousands of btc to be worthwhile, but they will move the market by doing so. Wealthy people also have to deal with real estate and other investment scammers. So they are rarely bored, but they may not be all that happy either. |
|
|
|
I would rather use that hash power to support the Bitcoin network and to generate a income, rather than wasting it on a fruitless venture. All the other Alt Coins fall under the same category, called : Crypto currencies {Why would you want to hurt your own family?} Every time a Alt coins fails or Scam, it has a negative affect on all Crypto currencies, so should protect each other, not attack to gain a competitive edge. The DoSS attacks and Spam attacks is plain stupidity and greed.  Indeed it is bad press when something like this happens. The OP is investigating the economics and ethics question of whether there would be miners willing to point their hashing power at a SHA256 altcoin to participate in a 51% attack. Interesting question but I can't imagine anyone putting their hand up in the forum |
|
|
|
|
My mistake is not buying in when 1 pizza was worth 10,000 bitclams.
|
|
|
|
|
