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to the OP...why would you bother asking this? Thats like asking...What's a bitcoin? What is Mining?
Just like the 2nd guys said...you would really trust us here? if yes...then buy 100x block erupters for 5 btc....you'll maybe get 3 btc within its lifetime.
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Be sure you encrypt your wallet with a strong password and you should be fine.
However, for very large amounts I'd look into a trezor, cold storage etc.
The problem is a computer is a multi-purpose device. It's meant to run programs; and there are very many ways for external programs to eventually execute on your computer, not all of them benign. This is why very many computer users do experience malware at some point. Could you be sure nobody did any Internet browsing or inserted arbitrary flash drives on your computer over an extended time? For substantial amounts you might be stressed ever leaving your computer unattended.
If you're intent on this route, however, you can button down your computer as well as you can. Don't install anything and turn off absolutely everything, javascript, flash, browser plug-ins, everything. Also, as LiteCoinGuy points out be sure you have backups to the wallet which exist, ideally on printout as well as USB. Also remember it's not a good idea to keep every single coin you have at one single point of failure.
+10,000 Paper wallet is safer than electronic...especially if its somewhere safe like a deposit box and covered such that you need to tamper with a seal to gain access to a private key. I wouldn't trust any computer at all. I would only use a thumbdrive for certain if I knew that it was being kept in similar conditions to a paper wallet. |
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I own a rather large amount of bitcoins currently and am looking to protect me from
losing them by a default of my hard-drive.
What steps are necessary in order to be as safe as possible?
Just copy the wallet.dat file and store it somewhere in the cloud and
additionally on a usb-stick?
Is there a guide around there what steps are necessary in order to be able
to restore access to all your bitcoin addresses / coins if your computer defaults?
I may not have the best possible mechanism but this is what I did just now to make a paper wallet: 1) use a free image on the internet if you wish to make something decorative...otherwise skip this and go to step 2. ex: https://i.imgur.com/NYKX2fN.png2) use something like brainwallet.org it will generate random wallets for you. DO NOT USE THE WALLET LISTED!!!!!!! Press Random next to "secret exponent" on the right. Press it something random like 16 times or 31 times...just press it a bunch for a little while to make sure you got something that wouldnt generate first (it should be truly random I just like to be paranoid about it.) If you didn't decide to make a paper wallet, instead you could create a txt file on a thumbdrive that has the public and private keys listed...be sure to encrypt this file within an encrypted folder..if you can encrypt it twice...encrypt it twice. Keep it on the thumbdrive within the bank or firesafe...etc. If you are using a physical paper wallet then please proceed: 3) now write down the private key and the public key. I used something like MS paint to literally erase the public keys that are printed as well as the qr code. I copied and pasted my new public qr code and key and generated a private qr code from the provided key shown just two fields lower. YOU NEED THE PRIVATE KEY to restore your coins!!!!! 4) using a block explorer such as blockchain.info check this newly created bitcoin address and confirm for certain that no other transactions exist. If they do, congradulations you are one of the 1st people in the entire universe to create a "collision"! Congradulate yourself by taking their coins for yourself (akin to stealing them) There is an almost 100 percent chance of certainty this doesnt happen so if it does happen...make the most of it and celebrate! 5) now print and laminate if possible the newly created paper wallet. Using your current wallet, scan or enter the qr code for your paper wallet and transfer your coins...that are meant for cold storage. be sure to use a transaction fee so that they can be delivered quickly. 6) sit on them, forever, if possible. Keep them someplace hypersafe like inside a fireproof safe or inside a bank vault. BE SURE TO USE SOMETHING like electrical tape to fold the private key backup flap over the private key area...you don't want someone taking a picture of your private key because at that point its as good as stolen! I did this today for a friend I wanted to send bitcoin to that just wanted a way to sit on it/hold it. Was never planning to spend it but wanted to hold onto it. This is the free and easiest method to do this. |
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How do we set up the KNCs to mine alt-coins? Care to elaborate? Download PPcoin Client Install PPcoin client to a windows PC Run once ppcoin client and quit If your PC is Windows 7 goto Users/your user name/AppData/Roaming/PPcoin and create ppcoin.conf as follows rpcuser=anyname rpcpassword=anypassword rpcallowip=127.0.0.1 rpcallowip=your pc ip rpcport=9902 daemon=1 server=1 listen=1 gen=0 Then restart your ppcoin client and let download the whole block chain. After that goto your miner and point to your pc ip:9902 anyname (as above in ppcoin.conf) anypassword Restart cgminer, ensure via ssh that is working and hashing and wait Average block finding time is 4-8 hours for a Saturn (each block equals to 0,41 BTC) That is how to solo mine PPCoins. For the rest, nobody posted about it. Should I expect 12-16 hours on a mercury? wow thats pretty sweet. Im getting .21 since the diff jump for 24 hrs on btcguild with 160 GH (has 20 GH of other stuff too) |
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thanks and all....but you're just adding to the problem.....too many hardware vendors. Its not like there is only 1 or two...now there's like 7. (CT, HF, KNC, BFL, Avalon, Bitfury, and Asicminer for that matter) Not to mention the unknown number of hobbyists doing it with raw chips.
You say free market competition allows for greatness
I say great another way to flood the market and dwindle my pie
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See the contradiction there? You offer to sell the same amt of hashpower in your referral link for like half the price...how on earth do you expect to sell this? |
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I call this my Space Eater
What is it?
Its a McDonald's Bag from the Back Leftover's from his last SR purchase ... The bag has his off llne paper bitcoin wallets where he hides his thousands of BTC. Hide in plain site and no one will ever know. They done stole 3 of the modules out of his brand new KNC Jupiter, they missed the real prize stored in the McDonald's bag. Dude that's colorful I wish on everything it was the 111,111 address. Nope that is a bag-o-heatsinks for a BF full kit on the way. Yup Mercury - I plan to buy up a bunch of upgrade modules in about 9 months when everyone else is thinking that they are junk. |
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Thank you everyone for your suggestions.
One person seems to have misunderstood me, so I would like to clarify that after my hub went bad and the computer stopped recognizing the block erupters, when I restored my computer using the image from a week before, I wasn't trying to fix the hardware problem that way. I just wanted to rule out any possibility that it could be a software issue prior to posting here asking about repairing the damaged block erupters. I have read other reports in the forum of similar cases when a hub power supply went bad and caused a power surge, and Windows reacted by disabling the ports. I also read another report in the forum about a situation where a corrupt registry entry was preventing a block erupter from being recognized. Since I had a byte-for-byte image backup of my hard drive from a week before when everything was working perfectly, before posting a request for help with the hardware problem, I chose to try restoring from that image first, just to rule out any possibility of it being a software issue. I was afraid that if I didn't rule out the possibility that it might just be a software issue, someone would suggest that I do that, prior to declaring the block erupters officially dead.
I admit that I don't know all that much about the block erupters though; I've only been mining with them a few weeks (before I got the BEs, I was mining scrypt with a CPU and a GPU). But what I've seen on the forum over the past months is that the block erupters seemed to start out at a price of around $175 (which seemed a little pricy to me at the time, which is why I didn't buy any until recently). So I'm not sure I agree with the comment that block erupters were "designed to be cheap and disposable." My impression is that the cheap price is a recent phenomomen, which is more a consequence of the recent difficulty increases and decreasing ROI, and the competition beginning to release second generation ASICs, rather than ASICMINER's original intention. I do agree, though, that with the recent Block Erupter price drops, it is not economical to pay over about $10 to repair each one.
If someone on the forum thinks they might be able to fix or reuse them and wants to take these three units off my hands, please let me know. I'm hoping to get my shipping costs reimbursed, plus maybe $1 or so total just so that I can have the psychological satisfaction of knowing that I got something for them and that they weren't a total loss. Otherwise, I'll probably keep them sitting around for a while, until I get more free time and/or get sick of looking at them, at which point I will either clean up the room and throw them away, glue magnets on the back and use them to hold papers on the refrigerator, donate them to frankenmint or another worthy applicant, or maybe take the time to prepare a listing and put them on Ebay (although I have some doubts as to whether I could make enough from an Ebay sale to make it worth my time to prepare the Ebay listing).
Thanks!
Sure you got it...PM me I'll pay you 3.50...just putem in an envelope with a sheet of paper and mail them to me...Im likely going to take the silabs driver off one and fix my fried erupter then convert yours into decorative pins to sell. I'll even pm you when their ready and ship one back to you if you knock that off my price and simply give me an address to give you 3 dollars for them. |
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It is very unlikely you'd find a service man able to do the work, parts and labor, for about $15 apiece. I accept broken usb erupter donations... I've got about 18 BE heat spreaders, you want 'em? Yes pls! pm me and I'll give you my address quote me the shipping and ill shoot you some coin to cover it! |
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have you tried the press in firmly with a click trick that phoenix mentioned earlier?
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never ran it with the case on its always been off - haven't done anything extra to it its been real strong around 138-148 GH never any problems:
Too bad diff change coming right now Im banking this from BTC guild stats (also includes 20 additional GH from Block Erupters too for a total of approx. 160 GH or so)
24 Hour Earnings 0.29247938
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I call this my Space Eater  |
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having a tough time getting ANY nodes to sync was there ever an update or hard fork that I need to be aware of?
try addnode=71.19.153.148
addnode=146.185.148.114
addnode=188.165.19.28
addnode=74.208.170.71
addnode=46.233.6.6
addnode=188.142.26.124
didn't work when I added them to the qt client: addnode 188.142.26.124 add It takes the input but doesn't actually update: It keeps staying disconnected. I have 800 xjo sent to this wallet but its failing to update so I'm starting to get worried |
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I kept my brick =)
I don't think anyone will buy it at this point.
I'd buy it for $25 as a curiosity and maybe to run it on a solar panel. C I'll buy it for 50 each for the same points mentioned above. |
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having a tough time getting ANY nodes to sync was there ever an update or hard fork that I need to be aware of?
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I am sourcing 20W 4a 5v Ac Adapters with Barrel Jacks that fit a Vantec 10 Port Hi-Speed USB 2.0 Hub (UGT-PH210) or equivalent of similar size. Make your generic 10 port hub power 9 USB block Erupters with ease, no need to pay for expensive Anker hubs! This mod comes to you for the price of .07 BTC Each which includes shipping for USA only....I can do international but it's extra, pm for detailed quote...I would be happy to offer 3rd party shipping where you provide the label for the price of only .046 BTC each. I make these myself and will cater a barrel jack to your specifications if you provide the inner diameter outer diameter and polarity desired - --- C --- + for example. I accept payments to the following Address: 13JWsDJa2a5CqXjBFTka3CTVZZGePigkiF or if you'd like we can setup escrow. I will need a shipping address PM me! Local pickup for South Bay Area only. |
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How much of a reduction in life could I expect from my miner if I OC them up too a level like 40 GH per card or approximately 640 GH/s? I'm planning to use heat sinks on all chips and have fans on them too. Could I possibly hope to see something that lasts a year?
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because they are stupid...no its because they are risk averse. why should you speculate on greed if you've already got a healthy portion of wealth.
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Just as with GPUs...the race moves towards fpgas utilizing scrypt however there needs to be a magnitude of 3-5X of a GPU for an FPGA scrypt miner to be efficient something along the lines of 2000 KH or more for a few grand. just a Grand. also the power requirements will have to also match the efficiency curve too in order for the premium in cost to be worthwhile. I could easily buy 600 KHs 7950s for a couple hundred each. http://www.newegg.com/Product/Product.aspx?Item=N82E16814127737 |
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