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    Home Unlabelled Ethereum Canadian Weed Company now accepts Ethereum

    Ethereum Canadian Weed Company now accepts Ethereum

    December 24, 2017

    Ethereum Canadian Weed Company now accepts Ethereum

    Canadian Weed Company now accepts Ethereum

    Posted: 24 Dec 2017 03:40 PM PST

    Canadian Hydroponic growing equipment store now accepts Ethereum as payment on grow lights and grow tents.

    I honestly think Ethereum / Blockchain is going to change the world

    This is the website - www.TheGrowKit.ca

    submitted by /u/GrowToronto
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    A Christmas Mystery: sweepers and zero gas price transactions

    Posted: 24 Dec 2017 11:41 AM PST

    For the last couple weeks I've been following some accounts that have a bunch of old brainwallet keys and compete with each other to steal ether that is continually deposited into accounts, either via mistake or misconfiguration. I've seen them mentioned once or twice, usually by /u/rya_nc in regards to the empty password parity account:

    https://etherscan.io/address/0x00a329c0648769a73afac7f9381e08fb43dbea72

    There's not a ton of information about this practice out there, but much of it is related to BTC rather than ETH, but I've heard them referred to as sweepers as they sweep deposited funds out of accounts as fast as they can.

    You can see in the brainwallet for '' (as in no password) that a few different accounts compete for the funds that are deposited here. One of the common addresses you can find is 0x957cD4Ff9b3894FC78b5134A8DC72b032fFbC464 which I'll refer to here as 957.

    Now, 957 has been quite lucrative in this endeavor, collecting something like $23M in ethereum and $900k in tokens over two years.

    Not too unusual up until this point, plenty of sweepers do the same thing (most not nearly to the same success rate) and make a good amount of cash stealing from people who make mistakes.

    But all this competition between sweepers leads to some interesting situations like in the case of this empty password brainwallet account, which has a supply of $13k worth of minereum tokens and a private key that anyone can look up.

    minereum (MNE) ERC20 Token Tracker

    However, since any transactions to this account are quickly swept away, it's impossible to send enough gas for a token transfer because it's gone nearly as fast as it arrives - usually within two blocks.

    It's fascinating to see some money locked in the blockchain not because of an address mistake (which is a fairly regular occurrence), but because of the collective actions of a bunch of people interacting with the chain.

    A Minereum Mystery

    So I check this account relatively frequently to see how the various players are doing and the other day I was surprised to notice that some of the minereum that I thought was locked in this account was leaving this account and headed to 957, like this one:

    Ethereum Transaction 0xb1050b324f02e9a0112e0ec052b57013c16156301fa7c894ebf2f80ac351ac22

    This was immediately interesting as this minereum was supposed to be untouchable in this account. How was 957 removing it?

    It wasn't immediately clear but it appears that 957 had submitted a few transactions with a normal gas limit but zero gas price, meaning there's zero tx gas cost and the transfer can be included in blocks even though there's no gas to pay for it.

    But since there's no gas associated with the transaction, there's no conceivable reason why a miner would include such a transaction in one of their mined blocks. You might know this if you've tried to buy or interact with a cryptokitty recently and your gas price was set too low - you probably wait a long time for your transaction to be included. But these zero gas price transactions were being included immediately in a block.

    That was fascinating - how did these transactions get included in the chain?

    Sweeps Become Miners

    The mystery started to reveal itself when I realized that all of these zero gas price transactions have been included in blocks mined by 0xE4E359702A4Ab1F9C7b2f1A4da8064492eC1D41A, a miner that has been operating for the last 11 days:

    https://etherscan.io/address/0xe4e359702a4ab1f9c7b2f1a4da8064492ec1d41a#mine

    Presumably 957 had the brilliant idea that they could include whatever transactions they wanted if they only had access to a mining pool. And with $23M in the bank, why not buy your own pool?

    There are payments made to Genesis from this account so it seems reasonable that this is paying for a cloud miner but I'm not familiar enough with the setups of cloud miners to understand how one can decide to include zero gas price transactions in their own.

    So 957 waits for their GPUs to mine a block, and immediately adds ~5 zero gas price transactions to the normal selection of txpool transactions picked up by their node, sweeping tokens to the 957 account and submitting it normally.

    957 also uses this opportunity to move funds out of accounts where the balance is low enough that it doesn't make sense to pay a tx fee to move that low amount otherwise. Yes, it might not be worth it for a single transaction, but if you've got enough of these accounts with $5 in them then it can accumulate over time and add up to real money. Or at least they think so. Here's one of these low value with zero gas price transactions:

    Ethereum Transaction 0x9506fc85ab3836744025a41dfe66076d53a10d70b9f2008cbfc4eb1bbb393820

    Cloud mining may be barely break even normally, but with the extra bonus of trapped tokens and these accounts with very low amounts on top, paying someone to host hardware to mine ethereum might actually be worth it for 957.

    I find these sorts of meta-games inside of a system that isn't designed specifically for them very interesting, and after watching for a while I finally felt like I had enough information to put something together describing what's going on.

    I'll keep watching, of course, for continuing developments. There are still a lot of interesting angles to explore here. Here are some of the questions I still have about the process. If you've got theories, please chime in!

    • Why does 957 make these tiny transactions to pull 3 minereum at a time from these accounts with no gas price? Could they not include all 30k minereum at once from accounts like this: https://etherscan.io/address/0x5b5b9f1cbc0062c61ab73577e02301c07f5b66fa#tokentxns
    • I've never seen anyone sweep any ether away in less than two blocks time, i.e. eth is sent as part of block 4700000 and then is taken in a tx as part of block 4700002. I'm guessing that there's something about the details of how the txpool works that prevents this from happening in one block but I'd be curious to know what that actually is.
    • Zero gas price is a weird thing for the network to tolerate - does this make sense in some cases or is this something that should be disallowed on the network?
    submitted by /u/nickoneill
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    Santa knows

    Posted: 24 Dec 2017 10:37 AM PST

    amazing twitter thread by Vlad Zamfir about fault tolerant consensus protocols. Everyone who is interested in the logic and tech behind blockchains should look at this

    Posted: 24 Dec 2017 05:48 PM PST

    Sci-hub Clone on Ethereum/Swarm/IPFS

    Posted: 24 Dec 2017 05:14 PM PST

    Hi, For those of you who don't now, Sci-hub is a website providing access to millions academic publications that might otherwise be behind a paywall. I love Sci-hub. For whatever reason, one problem it faces is that it regularly experiences downtime. I don't now all the reasons why, but I presume it is largely due to certain jurisdictions trying to prevent them from offering their service.

    This seems like a clear case of something that could be implemented on the Ethereum network along with Swarm or IPFS.. First, is there anyone actively building a Sci-hub clone on Eth/Swarm already? If so, could you point me to their website/community. If not, why not? Is there something preventing a group from doing this?

    submitted by /u/timwilson23
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    Ethereum network continues to scale at a rapid pace - >1.1M transaction volume yesterday (highest ever) with <2k trans pending in the queue.

    Posted: 23 Dec 2017 10:03 PM PST

    I hear this is the best sub for learning. So I have a few questions...

    Posted: 24 Dec 2017 12:26 PM PST

    From my research, I'm starting to see the value of ETH.

    With everything I've been trying really hard to learn, I still have so many questions and I'm trying to wrap my head around all of it.

    So my first question. Does Ethereum plan to take the cryptos off the market that aren't on the ETH network? Or, does ETH and its tokens work together with bitcoin, and litecoin?

    I've also been hearing a lot about mesh networks, has there been anymore research into decentralized ISPs?

    Has ETH been taking precautions to guard against quantum computing?

    As far as scalability, have there been any great new advancements in the technology?

    Then my last question.. do the tokens on the Ethereum network tend to work kinda like stocks or something?

    submitted by /u/dirtybumorgy
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    ObservEth.net : Visualize & filter the flow of Ether / ERC20 tokens

    Posted: 24 Dec 2017 02:26 AM PST

    Will Ethereum be the next Facebook？

    Posted: 24 Dec 2017 06:20 AM PST

    Who are Ethereum's main competitors?

    Posted: 24 Dec 2017 07:12 PM PST

    I want to learn more about companies who are like Ethereum. Besides Cardano, NEO and Stellar, who else, existing or in the near future, will compete in a similar space?

    Do you consider EOS a competitor?

    submitted by /u/SirMzungu
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    Can i contribute to Ethereum without mining or buying?

    Posted: 24 Dec 2017 02:28 PM PST

    hi All

    So currently i have a lot of data and bandwidth, is there way that i can contribute to Ethereum with rewards?

    not keen on mining as the electricity bill would be insane.

    thanks

    submitted by /u/--CPT-Awesome---
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    I found another fake MyEtherWallet

    Posted: 24 Dec 2017 12:40 AM PST

    http://www.myetherwalletet.com/ (do NOT use it!)

    I found it on duckduckgo (search: "my ether wallet"), second result after the original MEW for me. Stay safe folks!

    submitted by /u/ticanic
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    Crack my wallet (easy) - earn $10

    Posted: 24 Dec 2017 01:26 PM PST

    Hi I have an ethereum wallet file with an encrypted private key (AES 128). I know that the password contains a very limited character set (about 8-9 characters). It is between 9 and 11 characters long. This should be trivial to crack if you know how to do it (Im just too lazy to write the code). I can PM you the wallet file as text, but I just ask that you send me the password after cracking. Anyone interested?

    submitted by /u/Legin_666
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    Sent ETH to wrong wallet :(

    Posted: 24 Dec 2017 08:22 AM PST

    I've been so careful. Telling others to check and double check the address. Now I've gone and done it, ugh. €1000 of ETH. I could cry.

    Because I sent it to an eth-based token wallet (FUN token), does this mean it's 'not' going to be a cross chain recovery? If so, Bittrex would charge 0.1BTC, i.e. more than my ETH is worth.

    I've trying to understand the Bittrex support document regarding this. I sent it from GDAX to Bittrex.

    Hope you're all having a good Christmas and thanks for reading.

    submitted by /u/andrewjknox
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    Is Ethereum more environmentally sustainable than Bitcoin?

    Posted: 24 Dec 2017 03:49 AM PST

    Hi, sorry if this is a dumb/old question, but I'm very worried about the energy demand that crypto have and will have in the future. Personally, I think this is a blind spot in the crypto community, or at least in the Bitcoin one. Is Ethereum different in this?

    submitted by /u/aubreymcfato
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    Is there any virtual card that works with ETH so i can use in day to day purchases?

    Posted: 24 Dec 2017 12:11 PM PST

    Been thinking about getting into crypto's. Ethereum without a doubt looks the most promising.

    Posted: 24 Dec 2017 07:22 PM PST

    Only been researching cryptos a couple of weeks and have been paying attention to market and ethereum defiantly looks like the most stable. Just wanted give some perspective from a new comer because i'm well aware of how late to the party i am.

    submitted by /u/Artizianlol
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    Casually explained eth tokens?

    Posted: 24 Dec 2017 07:05 PM PST

    Just trying to understand this plethora of tokens popping up on the eth blockchain. Do they share a wallet with your ethereum? How does that work? Are they functionally different from ethereum?

    I see a lot of people sending their eth/tokens to the wrong wallet.

    submitted by /u/blowtestmebaby
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    Ethereum Synthwave Wallpaper

    Posted: 23 Dec 2017 08:26 PM PST

    Noob question about gas price

    Posted: 24 Dec 2017 03:12 AM PST

    I know that higher gas price means that you will get included faster in next block, but does gas price affects first block confirmation only or all block confirmations? If I pay higher gas price, are all confirmations going to be faster or just first one? Sorry for noob question, I never bothered to ask this and I couldn't find answer anywhere.

    submitted by /u/keysikgg
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    Building dapps on Ethereum – part 6: deploying a private testnet

    Posted: 24 Dec 2017 02:39 AM PST

    How do I give my stupid cousins ethereum for christmas

    Posted: 24 Dec 2017 10:33 AM PST

    Half of them lost bitcoin when I gave them it through circle years ago.

    Any suggestions to give them ethereum? I do have one requirement that makes it a bit difficult.

    I'd like them to have cellphone access to trade it. Not sure if a wallet or web exchange is best, but I want them to have a relatively safe storage that also keeps them attached to the web.

    submitted by /u/trustahoe
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    Best mobile Ethereum Wallet (iOS) ?

    Posted: 24 Dec 2017 03:59 AM PST

    What are in your opinion the best mobile Wallets for Ethereum (iOS) ?

    submitted by /u/future_world_
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    Loci - Platform for IP Discovery & Mining

    Posted: 24 Dec 2017 09:09 AM PST

    Participating in the next wave of innovation is now available via #cryptocurrency. Join the LOCIcoin Token Sale today! https://locipro.com/

    LOCIcoin #trading #innovation #IP

    submitted by /u/najmul73
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