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    Thursday, January 11, 2018

    Ethereum Four university level courses that cover Ethereum and smart contracts

    Ethereum Four university level courses that cover Ethereum and smart contracts


    Four university level courses that cover Ethereum and smart contracts

    Posted: 11 Jan 2018 12:04 PM PST

    I have made a list of 10 university level cryptocurrency courses. Four courses cover Ethereum in detail, here they are:

    submitted by /u/seanDL_
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    [Announcement] Ethereum Conference in Paris - 8th,9th & 10th March 2018

    Posted: 11 Jan 2018 07:15 AM PST

    We (Asseth) were delighted by the wonderful feedback we had after EDCON Paris in Feb 2017. After speaking to representatives of the Ethereum community in Amsterdam, Berlin, London and Rome it appeared that the desire for a major recurring Ethereum event in Europe was very strong. So here here it is:

    EthCC - Ethereum Community Conference

    Where and when?

    EthCC will take place in Paris at the Conservatoire Nationale des Arts et Métiers (CNAM) on 8th, 9th and 10th March 2018.

    The venue is an engeneering school a museum dedicated to innovation and technology. EthCC talks will be spread accross 4 amphitheaters allowing for multiple streams (Scalability, Anonymity, Development tools, Governance, Compliance...) and longer duration than usual.

    Who is organizing EthCC?

    Asseth is the organizer with the support of the Ethereum Foundation and the CNAM.

    Asseth is a regulated French non-profit organization. It hosts free Ethereum workshops several times a month since early 2016, feeds the ethereum-france website and translates technical papers in French (see here, here, here and there ). Asseth also participates to various educational projects and open-source projects. Although the tickets will be sold at cost, any eventual benefits will be allocated in future workshops and community projects.

    Why should you attend EthCC?

    ⮕ It's a unique occasion to learn what is happening on Ethereum directly from the actors working on the latest development!

    The Multiple streams will fit different areas of interest and we are also planning hands-on workshops. The location is in the center of Paris and we will soon publish a new Crypto Guide To Paris ! Asseth will set up events the days before the event for people coming in advance.

    Confirmed speakers/attendees:

    Nick Johnson, Martin Becze, Aron Fischer, Frankie Pangilinan, Makoto Inoue, Raine Revere, Thomas Bertani, Andres Junge, Jordi Baylina, Griff Green, Clément Lesaege, Thibaut Schaeffer, Raphael Mazet, Rick Dudley, Josh Stark, Nicolas Bacca, Ashley Tyson, Robbie Bent, Vincent Eli, Simon Polrot, Jerome de Tychey, Jenna Zenk, Jutta Steiner, Will King, Jack Spallone, Daniel Nagy, Hudson Jameson, Dimitry Khoklov, Rob Stupay, Yann Levreau, James Pitts, Andrei Maiboroda, Vanessa Grellet... and many more to be announced

    We are looking forward to seeing you all in March <3

    Should you have any question don't hesitate to reach out to us [contact@asseth.fr]

    submitted by /u/Jey_s_TeArS
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    Week in Ethereum by Evan Van Ness - January 11, 2018

    Posted: 11 Jan 2018 05:35 AM PST

    This is Interesting: tZero Partners with Polymath on Initial Coin Offering

    Posted: 11 Jan 2018 01:39 PM PST

    Ethereum Alarm Clock Beta Release 0.9.0

    Posted: 11 Jan 2018 10:33 AM PST

    White Paper Published for Blockchain Privacy Tech Zk-starks

    Posted: 11 Jan 2018 10:48 AM PST

    ConsenSys is helping Dubai become the first blockchain-powered city

    Posted: 11 Jan 2018 11:42 AM PST

    is down https://etherscan.io ???

    Posted: 11 Jan 2018 10:25 AM PST

    Hi, I try to go to https://etherscan.io , but is always down. Someone see the same?

    submitted by /u/tindaya47
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    eth-button: a simple way to receive donations with Ethereum

    Posted: 10 Jan 2018 09:50 PM PST

    I tried posting this a couple weeks ago. It looks like my account was too young at the time, so it never showed up. I tried again recently, but I think it was deleted for being a duplicate.

    Is the third time the charm?

    eth-button is a simple, one-line method to accept donations on your site, through Mist or MetaMask. It is meant to be very compact and minimalist, and to be as easy to configure as possible. All that is required is the address at which you'd like to receive donations.

    I lack a good sense of design, so I'm looking for feedback or ideas on how to improve it. I would like to keep it focused to on task, though, and rather than extending functionality, I would prefer to work on ensuring it works on as many surfaces as possible.

    Ideas, comments, issues, pull requests, and assorted feedback welcome!

    submitted by /u/eth-button
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    Just learned Bitcoin, now trying to learn Ethereum

    Posted: 11 Jan 2018 01:03 AM PST

    The idea of a decentralized server is fascinating to me. But I have some unanswered questions.

    I understand that a smart contract is operational code that is sent to the miners to execute, and I pay a fee for the compute power. However, if I send a smart contract that executes the following scenario:

    Alice sends Bob 5 GenericERC20 Tokens if Bob has an GenericERC20 balance of less than 50.

    How does the if statement trigger? Does every ethereum block contain code to check whether or not Bob's balance has gone under 0? Another way to put it is...does the smart contract code get stored in each subsequent block and that computation gets run every time a new block gets added? If so, who pays for that compute power?

    Or am I totally misinterpreting smart contracts and the ability to automatically check balances.

    Another question I had in mind is creating a new ERC20 token. A new token is basically a smart contract with the contract address and balance amount, right? Does that mean every new block that gets added to the blockchain contains smart contract code for every ERC20 token imaginable? I am guessing that would be really inefficient storage of data.

    Any help is greatly appreciated. Just trying to learn!

    submitted by /u/Khaoz346
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    ETH to Poloniex Wallet Issues?

    Posted: 11 Jan 2018 09:12 AM PST

    What's a good way to tell if there is a bottleneck for blocks and your transaction will take a long time?

    Posted: 11 Jan 2018 11:50 AM PST

    Waiting for confirmation of my transaction and I was looking at an ethereum block explorer but I was curious to know if there was a metric that shows how "stuffed" the blocks will be.

    submitted by /u/casualchris56
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    Mining to a Nano S via Ethermine question.

    Posted: 11 Jan 2018 04:34 PM PST

    Evening all,

    Hope everyone is well.

    I know what you're going to say, don't direct pool rewards to the Nano S. This is totally understandable as if my understanding is correct a lot of transactions will make future payments extremely slow and will also cause a chance of hardware failure if the device runs too hot.

    Just out of curiosity however, as it's playing on my mind and I am looking to purchase a Nano S. Lets say as an example, if I was to increase the minimum payout to 5 ETH and have it pay out to a wallet address assigned to the Nano S, how would the Nano S then reflect this payment as being made?

    If I understand correctly, the transaction/money is always made and recorded online via the blockchain and the Nano S securely provides the private key to the wallet which receives the transaction. So, does the Nano S basically sync with the blockchain once plugged in to an online device and then the balances are updated and reflected on the Nano S?

    Sorry for the weird question, it's midnight and I start thinking about irrelevant things way too much. Cheers all.

    submitted by /u/haychrj
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    POS: What Stops A Malicious Attacker From Profiting?

    Posted: 11 Jan 2018 01:19 AM PST

    Under POS, isn't the main protection against an attack the notion that a successful attacker would devalue the chain (and their own holdings with it)?

    If that is the case, what is to stop the attacker from gaining more from the attack, either through (1) holdings in a competing coin or (2) a significant short position in cash settled futures?

    Let's use a hypothetical Bitcoin network that is POS. Why would a band of malicious actors (say, a group of early adopters who dislike POS and believe religiously in PoW and bigger blocks) not have the ability to accumulate enough coin to attack the network and simultaneously hedge their losses through holdings in the competing chain and a cash settled short position in the futures market?

    submitted by /u/Bayminer
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    Trouble running transactions on private test net

    Posted: 11 Jan 2018 01:21 PM PST

    I am currently learning how to create smart contracts. I have my own private test net that I created using the instructions found here: http://ethdocs.org/en/latest/network/test-networks.html

    I was able to deploy contracts. But now I want to transfer tokens and/or ether between the few different accounts I created on my private chain, but it does not seem to be transferring between accounts. I have the miner turned on and contracts do execute.

    Entire Contract:

     contract TokenGenerator { mapping (address => AuthenticityToken[]) public OwnerToToken; mapping (address => string) public AddressToOwner; function createToken (string _NameOfToken, uint _supply) public { Token NewToken = new Token(_NameOfToken, _supply, msg.sender); OwnerToToken[msg.sender].push(NewToken); AddressToOwner[msg.sender] = _NameOfToken; } } contract Token { mapping (address => uint) public balanceOf; string public name; uint TotalSupply; function Token (string _NameOfToken, uint _supply, string _TokenSymbol, address _Creator) public { name = _NameOfToken; symbol = _TokenSymbol; TotalSupply = _supply; decimals = 0; balanceOf[_Creator] = _supply; } function transfer(address _to, uint256 _value) public { require(balanceOf[msg.sender] >= _value); require(balanceOf[_to] + _value >= balanceOf[_to]); balanceOf[msg.sender] -= _value; balanceOf[_to] += _value; } } 

    Could the problem be that the token is generated by another contract and I am trying to transfer tokens by finding it and then using the built in transfer function in mist?

    submitted by /u/chick3234
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    Recommended Smart Contracts Primers & Articles?

    Posted: 11 Jan 2018 07:19 PM PST

    I'm guest lecturing at a law school on ethereum and smart contracts next week. I have a handful of articles and reports in mind to use, but would love any recommendations from the sub.

    Any favorite sources on Ethereum & smart contracts--whether video, primer-level, academic, or Vitalik-Vlad-Gavin style technical?

    submitted by /u/reterical
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    Nvidia GTX 980ti not working with Claymore when Computing is enabled

    Posted: 11 Jan 2018 07:09 PM PST

    I have a GTX 980ti that was running in computing mode with no problems. I clean installed its drivers and then tried to run it with Claymore again, but now it is getting CUDA error 1 #102/103/105 - 46 when I turn on Optimize for Computing Performance. I have tried reinstalling the drivers again but am still having the same problem. I have DSR enabled at 2.00x and also tried 4.00x and increased my virtual memory to 16gb. Has anyone else experienced this same problem or has any other ideas on how to fix it? Thanks.

    submitted by /u/digitalstomp
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    If I Create a ERC20 token that serves as a currency, then sell it for fiat, is that a taxable event?

    Posted: 11 Jan 2018 06:32 PM PST

    For example, I create an ERC20 token called XYZ. This token can ONLY be used to buy goods and services from specific businesses that accept XYZ tokens as a form of payment. Sort of like arcade tokens can ONLY buy things like game play at the arcade machines of the respective establishment. They serve no other purpose outside of that establishment's ecosystem, just like XYZ tokens.

    Now, let's say I sell XYZ tokens for $1 USD each. Is this a taxable event? If so, what type? Is it capital gains, sales tax, etc? The same question applies to arcade tokens. Are the sale of those tokens for USD considered taxable? If so, under what category?

    I appreciate anyone taking the time to share their thoughts. Thanks in advance.

    submitted by /u/PrairieDogSeeksHeart
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    Basic tutorial on making ERC20 tokens. Easy to understand.

    Posted: 11 Jan 2018 06:29 PM PST

    sending ETH using MEW using default 21000 gas = 14 hrs waiting time?

    Posted: 11 Jan 2018 05:07 AM PST

    I am quite new to Ether but isn't it abnormal for it to be 14 hrs since MEW adjusted the optional fee for me? How can I get it confirmed faster? Thanks.

    submitted by /u/taquitoxz86
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    Bittrex Users can no Longer Generate new Ethereum and ERC20 Token Deposit Addresses

    Posted: 11 Jan 2018 08:47 AM PST

    I built a Lottery DApp for my new year's resolution of learning to code Solidity

    Posted: 10 Jan 2018 07:44 PM PST

    I've been interested in Ethereum ever since I'd started college last August. However, I've never been able to motivate myself to create something with Solidity as the learning curve was rather steep.

    About a month ago, I switched my major to Computer Science and have been trying to find interesting areas to help build my skills in. As a result, I made a resolution this year to try and learn Solidity programming. I'm really proud to present my first Ethereum DApp, and I think I've gotten a pretty good grasp on the basics of how it works. The source code is here.

    I haven't deployed it to the mainnet yet due to high gas prices and me just being a student without enough ether. However, the testnet versions are still fully functional, and it would mean a lot if you could look it and perhaps give some feedback!

    https://lottery.now.sh/

    submitted by /u/crowdsourcedname
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    Why isn't address reuse a big deal in ethereum when it is in bitcoin?

    Posted: 11 Jan 2018 04:59 PM PST

    As far as I can tell only Jaxx wallet generates a new ethereum address for each transaction. I assume it's not practical in ethereum because you cannot have multiple inputs for a transaction (right?).

    Nevertheless it's considered very bad to reuse addresses in bitcoin. Is it any less of a problem in Ethereum?

    submitted by /u/solled
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    Recommend some reading materials

    Posted: 11 Jan 2018 03:14 AM PST

    Hi...as above, I am looking for some books or texts that can explain the Ethereum project as a whole while keeping the discussion as non technical as possible? Some online sources are good...am just looking for more.

    I have flipped thru Takashima's book but I thought it was a bit superficial. Anything 3kse you folks may recommend? Thanks in advance.

    submitted by /u/kristalsoldier
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