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    Monday, April 5, 2021

    Ethereum Key Ethereum Researchers Vote to Ship Proof-of-Stake in 2021

    Ethereum Key Ethereum Researchers Vote to Ship Proof-of-Stake in 2021


    Key Ethereum Researchers Vote to Ship Proof-of-Stake in 2021

    Posted: 05 Apr 2021 09:54 AM PDT

    [ethresear.ch] Should storage be priced separately from execution?

    Posted: 05 Apr 2021 02:29 PM PDT

    Is there an ELI5 on how to run an Ethereum node? How much would it cost?

    Posted: 05 Apr 2021 05:13 PM PDT

    Is there an ELI5 on how to run an Ethereum node? How much would it cost?

    submitted by /u/pinoygs
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    Scaling Ethereum Hackathon, April 16 - May 14th

    Posted: 05 Apr 2021 01:00 AM PDT

    Vitalik in 2019—"ETH absolutely can be money if the community wants it to be"; Vitalik in 2021—"I do think that the Ethereum community wants ETH to be sound money"

    Posted: 05 Apr 2021 12:31 PM PDT

    2019 : https://www.youtube.com/watch?v=wDB4Ntj-RCE&t=2307s

    2021: private chat with Justin Ðrake

    Source: Twitter

    submitted by /u/papasmruf
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    Best way to generate interest while hodling Eth?

    Posted: 05 Apr 2021 01:03 PM PDT

    Hi All, I'm heavily invested in Ethereum and plan to HODL much of it for quite a while. I just recently found out about Nexo and a few other lending options to earn interest on my holdings and have a few questions before I dive in.

    Is Nexo the best option?

    Are there others I should know about?

    How does staking differ from lending?

    submitted by /u/superhyooman
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    Introducing Contracts Wizard: An Interactive Contract Generator ✨ Select token type (ERC20 or ERC721) ⚙️ Choose features (mint, pause, burn, access control) �� Contracts Wizard will magically generate the code ��‍�� Open & deploy in Remix

    Posted: 05 Apr 2021 02:49 PM PDT

    Kyber Dynamic Market Maker (DMM) beta is LIVE! Next-gen AMM with greater flexibility and extremely high capital efficiency

    Posted: 05 Apr 2021 07:31 AM PDT

    Where to start?

    Posted: 05 Apr 2021 03:39 PM PDT

    Hi guys,

    I am a reasonably long time crypto enthusiast (since early 2017), and have an idea for a DeFi project I would love to have a go at developing.

    I'm not a programmer myself, but am fairly technical and have a background in software implementation and product management. I have a friend that is a developer and coding wizard, however no blockchain experience at all. And a second friend that is a professional marketer but again no blockchain background.

    What are our chances of succeeding without having someone onboard that has deep experience in developing/launching crypto projects?

    I have started on my research journey to find out as much as possible but would like to know if people have any tips to help get us started? Any good literature out there around developing/launching crypto projects, particularly DeFi?

    Any advice would be hugely appreciated.

    Thanks!

    submitted by /u/marcosa89
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    Week in Ethereum News - April 5, 2021

    Posted: 05 Apr 2021 11:07 AM PDT

    Can anyone explain to me how "the beacon chain" works in the most simple way?

    Posted: 05 Apr 2021 01:39 PM PDT

    I have looked up on ETH 2.0 at ethererum.org and understand it to a certain degree but always get lost when they get into the beacon chain and can never seem to wrap my head around it.

    I have just started out trading crypto last week and feel like I'm grasping it fairly well although I have no background in computer science (I went to school for accounting) hence why I'm getting lost.

    submitted by /u/wejjers
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    Joined the 1 ETH club. What should I do with it?

    Posted: 05 Apr 2021 11:48 AM PDT

    I don't intend on cashing out anytime soon, so I'd like some suggestions as to how to best utilize my ETH. I'll give an update as to what I end up doing with it and how it pans out.

    Edit: I staked it!!

    submitted by /u/No_manches__guey
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    My second smart contract! here are my notes...

    Posted: 05 Apr 2021 09:09 AM PDT

    Introduction

    In my last post (LINK) I shared my personal notes about the first experience of programming a smart contract using solidity. Now in this opportunity I'll share the solutions of my "future tasks" that I mentioned there:

    • How can the parent add more kids to the smart contract? (I realized how funny could be this question after seeing the first comment of that post. It made me laugh too)
    • How can the parent add more balance to the kids

    Smart Contract

    The idea behind this smart contract consist in having a parent that wants his multiple kids to withdraw the money deposited after certain date. You can check the code here: LINK

    Notes:

    • We can use mapping(_key_type_=>_value_type_) to link data between different object types. In this case there is a link between a kid address and the amount available to withdraw
    • Currently there's not option to check is a key is already in the map but this can be achieve by checking the supposed value
    • In my journey of this development I came across with the "Smart Contract Security". I recommend to take a look at this before deploying any smart contract into the real world (I didn't know that smart contracts can be attacked)
    • Remember to update internal data before making any external calls. This avoids reentrancy attack

    Doubts:

    • Why payable(_address_).transfer(_amount_) does not call the fallback function and msg.sender.call.value(_amount_) does?
    submitted by /u/bloodkn07
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    The Layer2.Finance Testnet Carnival: Win $32,000 by Helping Us Test DeFi City’s First Subway!

    Posted: 05 Apr 2021 08:24 PM PDT

    What is stopping governments from making Ethereum and other crypto prohibitively inaccessible?

    Posted: 05 Apr 2021 12:52 PM PDT

    I'm pretty new to the crypto space and I'm curious to hear the community's thoughts. Say NATO member countries took collective action to protect their fiat currencies without outright banning crypto. If they decided to:

    1) Force large fees on using crypto in daily transactions or outright limiting its uses to prevent widespread adoption.

    2) Heavily taxing revenues based in the crypto space, which discourages new entrants and innovation.

    3) Place barriers to entry in acquiring crypto by necessitating additional documentation and legal processes for both individuals and institutions, etc.

    I really want to believe in Ethereum's future, but I'm having trouble finding some clear and intelligent discussion on this issue. Very curious to hear about how governments could actively push back against decentralized finance and how crypto (or Ethereum specifically) combats it.

    submitted by /u/gonexploring
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    Teeka Tiwari’s 6 coins

    Posted: 05 Apr 2021 08:21 PM PDT

    Does anyone know what are the Teeka's 5 coins he unveiled besides ETH. Can anyone share some info please.

    submitted by /u/macman95835
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    Quick question about different types of L2 solution

    Posted: 05 Apr 2021 08:22 AM PDT

    When L2 rollups like Optimism officially launch for Ethereum, doesn't it kinda remove the role for Polygon/Matic? What different thing does Matic offer compared to Rollups?

    submitted by /u/sggts04
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    Low gas, how much is too much?

    Posted: 05 Apr 2021 10:30 AM PDT

    Hi, I sent a transaction with a very low gas (20 Gwei) so far it has been 16 hours in pending state.

    Is there a time frame when one could say for sure that it will never get picked up and it's time to increase the gas?

    I'm not in a hurry and could wait weeks for it. Just want to be sure that I'd not wait forever...

    submitted by /u/pakcjo
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    Is Sharding really hard to implement?

    Posted: 05 Apr 2021 10:14 AM PDT

    Hi people

    I was talking with crypto people on Twitter and some of the guys which I find them veterans tell me that Sharding is really hard thing to process and Ethereum will never make it.

    I checked the roadmap and Ethereum delays Sharding 1-2 years.

    Is it really that hard? Is Ethereum going to make it? How Sharding process is going and which phase are we at exactly?

    submitted by /u/TShougo
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    Nonprofit looking for help with blockchain idea

    Posted: 05 Apr 2021 05:36 PM PDT

    This may be a long shot, but I've gotta start somewhere.

    I work for a nonprofit and we have (what we believe) is a really neat idea. It will help visualize multiple social issues, namely having to do with fresh food access and reforestation.

    I know enough about blockchain technology to navigate a basic conversation, so this is outside my realm. But I think it's something that could work really well with it. I know there are a lot of grants and such out there for this type of stuff, and we'd be up for working on that aspect.

    So, if anyone knows of a better place to ask this question, please let me know. Or if you think this might be something neat, go ahead and reach out and I'd be happy to discuss further.

    Thanks!

    submitted by /u/BackyUppy
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    ETH & BAT Transactions - Unconfirmed

    Posted: 05 Apr 2021 01:03 PM PDT

    BAT & ETH Transactions - Stuck somewhere

    Hey guys! So I decided to send some BAT to my Coinbase account from my wallet and also ETH.

    It has been more than 24h and these transactions are still unconfirmed. Here are the links for etherscan's info:

    BAT Tx: 0x90de87670ac8e608e8c5f9e9d2efd5452768070748af56cdccd646df7c3eed32

    ETH Tx: 0x406dcf1de6886bacf0b2a851e2eddaa2bcb179b4ba6720a076b2823b720ce59d

    Now, my brain said "your wallet has set a fee so low nobody is interested". So I decided to send more ETH today in the hopes it will complete the previous transactions. The Hash # for this last one is 0xc23818745816400a03da0cf99b9cefd78ebf38b28d45b52f1d405841fb6181a4

    As of now, I have no idea when these transactions are going to be completed. None have been confirmed, and I don't know what else to do to solve this (FYI, I can't self-send myself through the wallet 0ETH at high Gwei to solve this).

    Any suggestions?

    submitted by /u/DanMards
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    A few technical questions about NFTs - mutability and off-chain data

    Posted: 05 Apr 2021 04:11 PM PDT

    I think I have decent understanding of NFTs after reading https://eips.ethereum.org/EIPS/eip-721 but I have the following questions that doesn't seem to have been answered adequately anywhere.

    1. Issues with mutability of URI in the metadata
      While there are use-cases where it is helpful to have it mutable, I wonder if common implementations employ mutability? If it is mutable, I'm guessing only the current owner can change it? What's stopping them from changing it and point to a completely different asset?

    2. What is used for TokenId of NFTs with off-chain data?
      There are many types of NFTs (digital artwork for example) that typically have off-chain data. Assuming availability of off chain data (a tangential problem), am I correct in assuming that the TokenId is typically a hash of the artwork or the json meta-data? More specially, what piece of data on-chain prevents tampering the content hosted off-chain (artwork and the json contents)?

    3. Could you please point to some good and bad implementations of NFTs?
      NFTs with off-chain data seems like a recipe for many bad implementations. I read some twitter threads about bad NFT implementations due to where the artwork is hosted and it's availability.

    If I were creating an NFT contract with off-chain data, I would do this:

    • TokenId: Will be a hash of the asset (the art piece the token aims to represent on-chain). Must be a hash that outputs no more than 256 bits.
    • URI: Immutable and hosted on IPFS
    • Artwork, preferably also hosted on IPFS

    Since both metadata JSON and the artwork are on IPFS, the content cannot be edited without changing the URI itself. This still leaves the problem of these files disappearing from IPFS altogether. Maybe that's not a big problem because the current owner could maintain their own copy of these 2 files and anyone can verify the validity using TokenId and IPFS URI for JSON file?

    submitted by /u/praveendath92
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    Watch an overview of EIP 2124: Fork identifier for chain compatibility checks with Felix

    Posted: 05 Apr 2021 07:22 AM PDT

    An overview of the 'fork identifier', its purpose, and usage for the Ethereum chain for compatibility checks in syncing new nodes by Felix Lange in PEEPanEIP with Ethereum Cat Herders.

    Watch PEEPanEIP #30: EIP 2124: Fork identifier for chain compatibility checks with Felix.

    Resources:

    Watch EIP-778 with Felix Lange - https://youtu.be/TVG4Xb-YDiY

    submitted by /u/poojaranjan19
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