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    Home Unlabelled Ethereum The first working ZK-Rollup DEX is live on Ethereum mainnet

    Ethereum The first working ZK-Rollup DEX is live on Ethereum mainnet

    December 22, 2019

    Ethereum The first working ZK-Rollup DEX is live on Ethereum mainnet

    The first working ZK-Rollup DEX is live on Ethereum mainnet

    Posted: 22 Dec 2019 07:51 AM PST

    Validator rotation, state, stateless clients, and bandwidth in eth2 sharding

    Posted: 22 Dec 2019 03:10 PM PST

    I'm wondering what are the latest thoughts for how to solve the problem presented by the above factors?

    It's my understanding that rotating validators will have to catch up to the latest state for each new shard they are assigned to. The more frequent rotation the more secure the network is from collusion attacks.

    However the more frequent they are rotating, the more requirements in bandwidth they will need to obtain the latest state (or witnesses) in each new shard.

    This seems like a critical issue as it would be impractical from a networking perspective to have so much data need to be constantly transferred just to make basic transactions if the state is significantly large

    I saw on Eth research this post by Vitalik discussing 'welfare state' where clients maintain state objects touched in the last 3 months and have users pay a fee for nodes to store state beyond that.

    I wonder if such a solution is the best direction to take as I struggle to see how a growing state size will be able to be synced or transacted upon by validators with all of the storage and witness data requirements

    I'm curious to know what the latest research or thoughts are for this as we move towards Eth2 as it seems like it's potentially a big issue

    submitted by /u/whuttheeperson
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    Proud moment for all the blockchain enthusiasts

    Posted: 22 Dec 2019 08:58 AM PST

    I was unlucky to see the Internet boom.
    Started to use bank account at 20 years with no knowledge of how banks are going to use my funds that I deposit with no guarantee.

    But DeFi is answering to all my concerns. You're the king of your funds Thanks u/ethereum . We need more adoption with the implementations of blockchain

    submitted by /u/saiteja01
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    Help us Find Bugs

    Posted: 22 Dec 2019 04:29 PM PST

    Help us Find Bugs

    Hello, this is Jeayoung Han, the CEO at Mycoldwallet.

    I'm excited to announce the completion of our project Mycoldwallet.

    Prior to the project launch, to verify its security and guarantee its safety, we are planning to hold a Hacking Contest to the public.

    Everybody, please come and hack the blockchain account if you can!!

    📷

    Purpose of the event: To find any possible malfunctions or errors that can cause inconvenience or security problems. Anyone who can control the protection account without the signature of either the user or management system is the winner of the contest.

    Dates of the event

    1st round: 10~15 of Dec.

    2nd round: 16~22 of Dec.

    3rd round: 23~29 of Dec.

    Prize for winners

    1. Critical bug detector: $1,000 and 20,000 MCW Tokens
    2. Normal bug detector: $200 and 5,000 MCW Tokens
    3. The leftover prize from each round will be carried forward to the next round.

    ** Critical bug: A situation that can make the protection account locked or have the assets in the account transferred to another place without the user signature.

    ** Normal bug: A situation that cannot control the protection account but that can cause small operational glitches.

    ** Any participants who find a problem or error in the program can contact [contactus@mcws.io](mailto:contactus@mcws.io) for the reward.

    ** The first verified detection is only valid for the reward.

    Detailed information

    a.Target protection account(Rinkeby Testnet)

    https://rinkeby.etherscan.io/address/0x8c67f07dcdcf8acb307f3b0500a6333c0e60002d

    b. ABI link of the protection account https://mycoldwallet.io/download/ProtectedAddress.zip

    ** The participants can use all the command words on the ABI file attached here.

    ** Explanation of Mycoldwallet: We are a cryptocurrency wallet service program that provides a Protection Account which is programmed with the Smart-contract. At the time of the account creation, the system registers two signatures in the account. One is a user's signature and the other is a management signature. The activation of the keys is controlled by a waiting period that the user selects on the account setup. During the waiting period, only the user's signature can control the account but when it expires the management signature can control the account. This waiting period is automatically renewed when there is a withdrawal in the account.

    I invite any hacker who is up to the challenge to help us improve our service.

    MYCOLDWALLET.IO

    https://preview.redd.it/59b13t4g2a641.jpg?width=600&format=pjpg&auto=webp&s=30785c7c43ee99c8df0f9ceae242f0d756ae37ed

    submitted by /u/mycoldwallet
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    A photoshop battles platform built on Ethereum

    Posted: 22 Dec 2019 01:38 AM PST

    Ethereum Social Engagement + Volume Spikes

    Posted: 22 Dec 2019 08:42 AM PST

    Ethereum Social Engagement + Volume Spikes

    Ethereum social engagement has been spiking higher this week as high as 6,425,277 unique engagements per hour on Dec 21. https://lunarcrush.com/coins/eth/ethereum?interval=1%20Week

    https://preview.redd.it/j43w6ef1r7641.png?width=2400&format=png&auto=webp&s=e2e8450fde9dbefb2baad1ce06a5a44aa05ed9aa

    Ethereum social volume has had two major spikes over the past month with Dec 18th having the highest volume at 20,359 unique posts. https://lunarcrush.com/coins/eth/ethereum?interval=6%20Months

    https://preview.redd.it/9j1lllr3r7641.png?width=2400&format=png&auto=webp&s=62d65186fa3e8f7c53ab804d7f6c9f7953742429

    submitted by /u/lunarcrush
    [link] [comments]

    Proof-of-stake not economically incentivized according to r/bitcoin

    Posted: 22 Dec 2019 09:00 AM PST

    TemporalX S3 IPFS Minio Gateway Underway

    Posted: 22 Dec 2019 12:30 AM PST
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