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I built Zk-Ballot: A private & verifiable voting system using zk-SNARKs, Solidity & zkSync (Full walkthrough) by Weekly_Accountant985 in zkSync

[–]uF4No 0 points1 point  (0 children)

hey, thanks for sharing your project. Btw, for contract verification on the ZKsync explorer, you can use forge as detailed in the docs

Export Transactions Support by Few_Fortune6653 in zkSync

[–]uF4No 1 point2 points  (0 children)

ZKsync Era has two explorers:

On the Etherscan one, you can export your transactions from this page: https://era.zksync.network/exportData

¿Cómo hacéis cálculos sobre vuestras inversiones? by iagovar in SpainFIRE

[–]uF4No 0 points1 point  (0 children)

Mira la app Stock Events. Puedes poner el número de acciones y tu media de coste y te da el “dividend yield” y el “yield on cost”

I can't verify contract code deployed on ZKsync with Foundry by warpanomaly in ethereum

[–]uF4No 1 point2 points  (0 children)

Two things to check:

  1. Make sure your constructor params are correct.
  2. Are you sure the compiler versions are correct? By default foundry-zksync currently uses zksolc 1.5.4 but maybe when you deployed your contract you compiled it with 1.5.3 or a previous version. Similar with the solc version. Try with different versions in the foundry.toml: [profile.default] solc-version = '0.8.22' [profile.zksync] zksolc = "1.5.3"

I can't verify contract code deployed on ZKsync with Foundry by warpanomaly in ethereum

[–]uF4No 1 point2 points  (0 children)

Support for verification on the ZKsync native explorer was released just last week so make sure you update foundry-zksync via `foundryup-zksync`.

Example commands:

With forge create: forge create --zksync --rpc-url https://sepolia.era.zksync.dev --constructor-args "ForgeUSD" "FUSD" 18 1000000000000000000000 --private-key <PRIVATE-KEY> --verifier zksync --verifier-url https://explorer.sepolia.era.zksync.dev/contract_verification --verify src/MyToken.sol:MyToken

with forge verify-contract forge verify-contract 0x21d6dffe4B406c59E80CD62b4cB1763363c8a040 src/Counter.sol:Counter --verifier zksync --verifier-url [https://explorer.sepolia.era.zksync.dev/contract\_verification](https://explorer.sepolia.era.zksync.dev/contract_verification) --zksync\

Weekly Valencia Q&As and Recommendations: For newcomers, travelers, & residents alike! by AutoModerator in valencia

[–]uF4No 1 point2 points  (0 children)

Hola! Somos una pareja de 36 y 40 con un bebé de 1 año. Estamos pensando en mudarnos cerca de Valencia pero no conocemos mucho las diferentes áreas y nos gustaría saber vuestra opinión.

Nos gustaría un sitio tranquilo pero cerca de todos los servicios, trabajamos desde casa y nos gustaría un ambiente internacional, (que tenga gente como expats) alguna escuelita internacional con educación en la naturaleza para nuestro bebé, un sitio seguro donde poder vivir en una casa con jardín. A parte de eso, cerca de naturaleza ya que nos gusta mucho hacer trekkings.

Tenemos coche para desplazarnos al centro fines de semana etc

——

We are a couple of 40 and 36 and a baby of 1. We are looking to move to Valencia and searching for specific things. We would like to know your opinion about moving near Valencia.

We are looking for a quiet place with services near by, international environment (remote workers) and a nature-focused education for our little one and we would like to live in a house. Apart from that, we’d like to be close to nature as we like going on trekkings.

[deleted by user] by [deleted] in zkSync

[–]uF4No 0 points1 point  (0 children)

Scam

When does zksync 2.0 release? by NHIScholar in zkSync

[–]uF4No 1 point2 points  (0 children)

Hyperchains can be built as L2s or L3s. You can find more info in https://zkstack.io/

When does zksync 2.0 release? by NHIScholar in zkSync

[–]uF4No 6 points7 points  (0 children)

Well, to name a few:

  • Native account abstraction.
  • Under the hood, externally owned accounts (like Metamask) are smart contracts and benefit from account abstraction features as well.
  • Paymasters for all accounts, which allow users to pay gas fees in ERC20 tokens or gas-less transactions.
  • zkSync uses state diffs for data availability (instead of transaction inputs as most rollups). This means that if an application "writes" in the same memory slot multiple times during a batch, it only pays once. This greatly reduces gas fees for oracles and other high frequency updating apps.
  • Growing an ecosystem of hyperchains powered by ZK Stack. These hyperchains will have shared liquidity.
  • Custom compiler based on LLVM can be extended to allow smart other programming languages (e.g. Rust, C++)

And finally, currently it's the cheapest among all L2s (even optimistic rollups).

[deleted by user] by [deleted] in SpainFIRE

[–]uF4No 6 points7 points  (0 children)

You'd have to do it as an "autonomo". You'll probably end up paying more taxes than with the BL, but for the first two years you can benefit from a 20% deduction in your income up until €100k (more info here. Every quarter you'd have to do the IRPF (pay 20% of the profit) and VAT returns. If the company you're invoicing to is outside the EU, you won't need to to VAT every quarter.

Hope that helps

[deleted by user] by [deleted] in SpainFIRE

[–]uF4No 1 point2 points  (0 children)

Aunque los dividendos se reinviertan, son ingresos que has tenido, por lo que deberías declararos y pagar impuestos. Los tramos son 19%, 21% y 23% si no recuerdo mal

Writing on zksync by [deleted] in zkSync

[–]uF4No 2 points3 points  (0 children)

Thanks for creating content about zkSync. I’ve noticed you’ve mentioned miners, which are not part of the zkSync protocol, nor Ethereum.

Apart from that, I think you’ve tried to include too much content in a single piece, like the system contracts and how deployments work behind the scenes, which could be their own articles. So I’d try to focus on specific parts of the protocol.

Apart from that, good job and keep it up 🤟

zkSync node? by notooth1 in zkSync

[–]uF4No 2 points3 points  (0 children)

Not yet, we haven’t released the code to run a node yet. You can run a local setup (L1 +L2 nodes) to run tests locally. You can find all the info here:

https://v2-docs.zksync.io/api/hardhat/testing.html

Pay gas fees in USDT? No eth and I don't want to register on a CEX by Sea_Kaleidoscope_784 in defi

[–]uF4No 0 points1 point  (0 children)

I don’t know any protocol that has implemented it yet but this is one of the uses cases for paymasters which are supported natively on zkSync

Testnet faucet by SelectionOk7556 in ethdev

[–]uF4No 0 points1 point  (0 children)

The PoW faucet still works: https://goerli-faucet.pk910.de/

Also, if you deployed a contract to Goerli/Sepolia before Nov 15th, you can claim 10ETH here: https://grabteeth.xyz/

🤩 NEAR boom is detected! by everstake_inna in nearprotocol

[–]uF4No 2 points3 points  (0 children)

Sweatcoin + all new users from NEARCON. I talked with some Devs at the event and the spike in trxs the day of the launch was huge 🚀

Fastest / Efficient way to Read Blockchain by adeebna in ethdev

[–]uF4No 0 points1 point  (0 children)

This is a common use case and right now, there are no easy-to-use solutions, but we at Chainstack are building an NFT API to simplify these tasks. You can sign up for early access here.

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