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Is there a tool that tries to log in to BTC addresses and swipes the coins from and sends them to a specific address?
That might be RainMaker v2.34 , it also logs into peoples' bank accounts and sends their money to a different account. I use that all the time, works great. |
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The syllabus we received for a particular bitcoin related unit has these 2 terms so I'm gathering from your responses that they are not similar.
A one-way function may be inverted with enough computing power but a non-invertibility means that no amount of computing power will produce the inverse because information is missing. Would that be correct?
And OWF is basically a hashing function like SHA-256
Where as the concept of non-invertibility may apply to the elliptical curve used for bitcoin wallet generation?
I'm trying to create some context for the students so any specific references to bitcoin will help
Thanks again for the responses
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Hi, I'm trying to understand how these 2 terms differ when discussing hashing and the bitcoin network. A one-way function to me is a non-invertible function. Take input A, hash it, get output B Try to reverse it, good luck  From a cryptographic perspective, are these two terms not similar? Thank you |
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Hi guys, Thank you to all who have answered and pitched in. It's greatly appreciated. As new account I cant reply to each of you as it would take forever but again, thanks! 1) I understand the importance of private keys being absolutely private (showed them bitaddress and how they can download the code and run while wifi is off) and students would only show the public key if photographed...I mean if they dont learn in our school to refrain from displaying their private keys in public then we have failed them  2) Doge for the win...will set that up and see how that goes along with running Electrum. I think I will send them $1 each out of my own pocket but would love any links to safe faucets...some of the faucets I saw back in the day seemed a little sketchy 3) The janky gpu miner will get them some sats as well and they are seeing, on the screen terminology like epochs, shares, rejections, difficulty, stratum, etc They also get to experience the heat/power needs for a discussion on the environmental impact 4) We are also discussing briefly the economics of BTC...although its not part of the case study as its focused on the tech side of things, I felt its important for them to know Again, thanks for the input |
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My advice, go for the DOGE or Litecoin testnet, setup a DOGE or Litecoin testnet node, solo mine, actually show them the debug.log and the stdout of their cpu miner, let them chose the address that'll be funded with the coinbase reward, let them move funds around from a core wallet to an SPV wallet to an airgapped setup, to a paper wallet, let them see their transactions in the mempool, then show them how they ended up in a block...
As for giving them some sats: sure, why not... But you could setup the mining rigs to mine after hours, and stick to mining testnet DOGE/LTC during class hours.
By the way: it might not be a good idear to take pictures of your students holding paper wallets... If somebody is able to read the private key, or restore the qr code, they can rob your students, unless you used encryption and a strong passphrase...
Awesome, that sounds great. I may need to PM you to get some more details if you are willing to guide me. Doge is a great suggestion especially now that its in the news. As for the photo of course the private keys would not be printed I'm just siked to be able to have them walk away with the basics and maybe a few sats and they can recall when they are 40 that their high school teacher got them their first wallet )) |
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So you guys will join a mining pool or something like that? What's the hash then? If it's too small I think you'd need a very long time just to find some sats. Doing faucet might be faster if your goal is to get a few satoshis imo. But if it's just for learning and seeing how to work things out, I guess it is worth a try.
Our gpu rig is running on nicehash and earning like a $1/day (but I have been using my phone data plan...even with IT help they could not get the miners to connect probably due to the 2rd party proxy/filter they use). As for faucets I didnt think there would be any out there any more ) I thought those were circa 2014 |
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Imho it's not a good plan. The problem is that Bitcoin mining difficulty is very high and rising. That means that an old "unprofitable" ASIC will probably not get you almost any coins, or you'll need quite a number of generations of students to get to withdraw that dust.
If you want to teach students about mining, show them how mining works with any coin. You'll have to pick with every new generation a new worthless coin with low difficulty in order to show them everything, including hitting a block or at least receiving payout from the pool.
If you want to teach students about transferring Bitcoin, then imho your best bet is Bitcoin's testnet. This way they'll see the exact wallets they can use. And since Bitcoin Core needs very long initial sync and you'll probably want to have each student trying this on his computer, I think that a SPV wallet like Electrum would be more suitable, since it syncs fast and it can also work with testnet.
Paper wallets... they are kinda outdated if you want to show them in the "classic" way. Paper wallet is a nicely printed pair of private key + address. But nowadays it's easier and cleaner to introduced them to HD wallets and seed, which they can store instead of paper wallet, and with seed they'll have virtually infinite number of addresses, of which they can bookmark one or two and check on block explorers (there are also a few block explorers that can work with testnet too).
Thanks! 1) I understand the difficulty is high but running an old asic and maybe using Nicehash will accomplish the goal of making some sats while mining...it would be cool to for them to see some old ASICs running 2) I like the Testnet idea but I would love for them to walk away having actual sats. Imagine they are in college 2-3 years from now and they can say they got their first wallet in CS class and even had it funded 3) Software wallets are cool but hardware wallets cost money so that would be out 4) Paper wallets are outdated but are tangible and a great way to help them make the connection between pub/priv key...I actually plan to share with them a private key of a wallet that I will fund my self with $20 or so and have them race to see who can get it first |
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Hello, I am a teacher at a high school in Dubai and my students are doing IB Computer Science. Their case study is surrounding the underlying tech of bitcoin but masked in a hypothetical case study. We cobbled together some small mining rigs so they can learn about mining but they are all sitting on very old mobos. My goal is to get the rigs to make a few bucks so that I can get each of the 35 students a wallet with a nominal amount that they can use to send/receive. I can just imagine the coolest photo op...30 students (less because of covid remote learners) but all holding their paper wallets standing proudly like lotto winners ) I have been lurking on this board for a couple years now off and on learning from so many of you. I would like to know what you think I can do to make this even more tangible: 1) I have reached out to ASIC companies to see if they have any REALLY OLD stock of SHA-256 miners (I would even be happy with those gridseed USB miners I would rather they mine BTC directly instead of using GPUs and nicehash 2) They will create their own paper wallets 3) I'm debating wether to get them to install Bitcoin Core on their devices and actually mine (although they wont make anything they can at least see it working) We plan on making a series of videos on Youtube to document their learning and I figured what better way than to pass it on than by having students share their exploits with others trying to learn. If someone out there has any ideas of how we can make this more "tangible" that would be awesome, wether that be in: a) Activities that you think would be very beneficial b) Some sort of sponsorship of old ASICs or whatever may be available that is not necessarily profitable anymore. PS - I can provide credentials and the school phone number. We are an accredited NEASC and an IB school. Looking forward to hearing from you here or via PM All the best compSciTchr |
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Hello everyone, I am teaching a comp sci class that has a bitcoin case study and the students need some real world experience. We have cobbled together a GPU miner (super low budget) but it obviously isnt mining BTC. I would love to be able to get my hands on some OLD Sha-256 miners like the gridseed USB miners or any other unprofitable units. We already used up our budget on the sad looking GPU miners (old pcs with some 470s and 560s ) My goal is two fold. 1) Give them real world experience with understanding mining, mem pools, transactions, wallets, keys and more apart from just doing theory. 2) I want to give them each a wallet with a nominal amount of BTC so they can say they have their own wallet and can gain experience sending and receiving nominal amounts to each other. The more I can surprise then with the better I have already joked around that they may be able to buy a Lambo with what we earn...I then showed them this  If I can get an old ASIC or 2 I can have them mining and also have some of the BTC go to a wallet that I start to show reveal the private key so that they can see who can figure it out first I can cover shipping (either from the school or I will try to cover it myself) if anyone is able to support my 34 students in this endeavor please lmk. I am happy to share my school details with you as they will be shipped to the school anyway. Please PM me PS - The USB miners would be great because they are low power and the school probably wont appreciate more than 1-2 older power hungry units running. All the best Omar Ghosn Dubai American Academy |
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