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0x: Exchange v3 Address 0x61935cbdd02287b511119ddb11aeb42f1593b7ef

Thursday December 15th, 2022

confirmation time

Other investors in the round include Pantera, Sound Ventures, A.Capital, Jump Crypto, OpenSea, Coinbase, Brevan Howard, Reid Hoffman, and Jared Leto. The project conducted an initial coin offering on August 15, 2017 where it sold half of the total supply of its ZRX token in just over 24 hours, raising a total of $24M. GuaranteedPrice returned in the API response, the transaction will revert.

  • /// @dev Gets the memory address for the contents of a byte array.
  • // The address occupies 20 bytes and mstore stores 32 bytes.
  • Once the order is relayed to a blockchain, 0x settlement protocol verifies the maker’s signature and executes the token swap.
  • ZRX token holders can use their stash to vote on 0x Improvement Proposals , just like ETH token holders do the same for Ethereum Improvement Proposals .
  • ZRX owners have a say in how the protocol evolves, and token holders can also stake their tokens to earn ETH liquidity rewards.

/// @dev Returns a slice from a byte array without preserving the input. /// @dev Copies `length` bytes from memory location `source` to `dest`. /// @return matchedFillResults Amounts filled by maker and taker of matched orders.

// Magic bytes to be returned by `Wallet` signature type validators. /// @param addOperatorAsMaker Adds operator to the created pool as a maker for convenience iff true. /// @param updatedProtocolFeeMultiplier The updated protocol fee multiplier.

Active 0x Protocol Markets

// If all of the left orders have been filled, break out of the loop. /// @return EIP712 hash applied to the given EIP712 Domain. /// @dev Calculates EIP712 encoding for a hash struct with a given domain hash. /// @param verifyingContract The EIP712 verifying contract. Circle is a financial services company that makes products using blockchain technology.

Orders can still force _fillOrderNoThrow() to revert by using an external contract for signature validation and having that contract consume all XRP available gas. If the number of required confirmations was decreased, then one or more owners will have to revoke their confirmation before the transaction can be executed. Increasing signing requirements or changing signers can still unconfirm previously confirmed transactions, but the development team is happy with that behavior.


/// @dev Reads an address from a position in a byte array. /// @param leftOrders Set of orders with the same maker / taker asset. Bancor blockchain protocol allows users direct zero/low fee conversion between different crypto coins. It is similar to a decentralized exchange but has unique differences. One of the differences is that a DEX stores orders on its blockchain, while 0x does not.


A is a digitally distributed, decentralized, public ledger that exists across a network. It is most noteworthy in its use with cryptocurrencies and NFTs. The word “token” is often used interchangeably with “coin.” However, a token is different from a coin because it represents an asset, whereas a coin is used as a means of exchange.

v3 Exchange

/// 0x exchange Settles an order by transferring assets between counterparties. /// @param takerAssetFillAmount Desired amount of takerAsset to sell. // Round down to ensure the right maker’s exchange rate does not exceed the price specified by the order. // Round up to ensure the maker’s exchange rate does not exceed the price specified by the order. /// @param takerAssetFilledAmount Amount of takerAsset that will be filled. Uint256 takerAssetFilledAmount; // Total amount of takerAsset filled.

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The 0x protocol is an open protocol that enables the peer-to-peer exchange of assets on the Ethereum blockchain. 0x facilitates a smart contract ecosystem to allow the P2P exchange of Ethereum-based assets. Its native token ZRX enables the community members to vote on a variety of proposals within the 0x system. Fusion mode New Fusion mode enables users to swap tokens on DEXes without paying network fees, at the most favorable rates. 1inch RabbitHole A feature that protects MetaMask users from sandwich attacks 1inch Earn A derivative-based product offering liquidity providers attractive APYs.

Trading Activity on Ethereum

The 0x protocol 3.0 specification is an excellent explanation of the exchange and its inner workings. ConsenSys Diligence conducted a security audit on version 3 of the 0x Exchange contract system. ABI for the implementation contract at 0x45daa83b927ad02065b543df26aa03a6e4cf9952, likely using a custom proxy implementation.

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Back in early 2018, this value had its historic high at more than USD 1.1 billion. /// @dev Magic bytes returned by the bootstrapper to indicate success. /// @dev Get the implementation contract of a registered function. Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet’s node. /// @return `LEGACY_WALLET_MAGIC_VALUE` if the signature check succeeds. /// @return magicValue `EIP1271_MAGIC_VALUE` if the signature check succeeds.

ZRX token

0x protocol (pronounced “zero-ex”) is a decentralized, permissionless exchange protocol that allows ERC20 tokens to be traded on the Ethereum blockchain. Developers can also use the 0x protocol as a platform to build their own decentralized exchange applications for Ethereum-based assets. 0x is an open-source, decentralized exchange infrastructure that enables the exchange of tokenized assets on multiple blockchains. The 0x protocol benefits greatly from being a crossover between a centralized and a decentralized exchange, as it combines the best of both worlds. The team behind 0x have built a standard protocol on the Ethereum blockchain that facilitates the exchange of tokens or the creation of new decentralized applications.

Grants A grant program that fosters growth and expansion of the 1inch Network. As with all native protocol tokens, ZRX is both a utility and governance token for 0x. ZRX token holders can use their stash to vote on 0x Improvement Proposals , just like ETH token holders do the same for Ethereum Improvement Proposals . If a maker is already familiar with a specific taker, they can send the order directly to them via over-the-counter trading desks or general messaging apps. In total, 0x has raised $109M across 9 funding rounds, led by Polychain Capital, Pantera Capital, Blockchain Capital, to name a few. Coinbase co-founder Fred Ehrsam serves 0x in an advisory role.

proxy contract

Immediately after, that owner can call confirmTransaction() again, which will reset the confirmation time and thus the time lock. Following that same logic, the rapid tokenization is bound to create an abundance of tokens that are difficult to spend or exchange – and that’s where the 0x project comes in. In addition, the 0X protocol allows interoperability between dApps, fostering the liquidity of networks through positive network effects.

Eve front runs this market order with a transaction that buys all 4 FOO tokens from Bob for $9 each. She creates a market buy order to purchase tokens first from Bob, who is selling 4 FOO tokens at $9 each, and then from Eve, who is selling 20 tokens at $10 each. // gasPrice that transaction is required to be executed with.

/// Allows the owner to update the protocolFeeCollector address. // The address of the registered protocolFeeCollector contract — the owner can update this field. /// @dev Transfers ownership of the contract to a new address. Address indexed feeRecipientAddress, // Address that received fees.

  • Note that this currently only works with non-contract addresses.
  • The goal of 0x Labs is to make the necessary infrastructure for the emerging cryptocurrency economy and enable markets to be created that couldn’t have existed before.
  • /// @param numPoolsToFinalize The number of pools that have yet to be finalized through `finalizePools()`.

0x is a liquidity protocol that enables DeFi applications in the Ethereum network. Aggregation Protocol An aggregator of liquidity from multiple DEXes ensuring the best swap rates. Limit Order Protocol The most innovative and flexible limit order functionality in DeFi. Liquidity Protocol A next-generation AMM that offers capital efficiency to liquidity providers.

A likely attack vector for this is front running a ZeroExTransaction that ultimately invokes _fillNoThrow(). // Arbitrary number to ensure uniqueness of transaction hash. These functions use MixinWrapperFunctions._fillOrderNoThrow() to attempt to fill each order but ignore failures. This way, if one order is unfillable for some reason, the overall market order can still succeed by filling other orders. ExecuteTransaction also inherits a lot of the safety from the reentrancy protection on other individual functions in the Exchange contract. Similarly, if an owner that had previously confirmed the transaction is replaced, the number of confirmations will drop for existing transactions, and they will need to be confirmed again.

Which wallet starts with 0x?

What is a 0x (ZRX) wallet and how does it work? A 0x (ZRX) wallet is a software where users can store and manage their ZRX. In fact, 0x (ZRX) is stored in blockchain and you access the cryptocurrency using public and private keys (a type of password).

/// @param rightMakerAssetAmountRemaining The amount of the right maker asset that is remaining to be filled. /// @param leftTakerAssetAmountRemaining The amount of the left taker asset that is remaining BTC to be filled. // Calculate amount given to taker in the left order’s maker asset if the left spread will be part of the profit.

However, this type of behavior could possibly be enforced by using external contracts that are set to the senderAddress of the related orders. These functions are primarily intended to be used with “matching relayers”. In this model, orders must set their takerAddress or senderAddress to the address of the matcher, who is the only party allowed to actually fill the orders.


/// @param transactionHash EIP712 typed data hash of 0x transaction. /// @return isValid true if the signature is valid for the given transaction and signer. /// @dev Calculates the EIP712 typed data hash of a transaction with a given domain separator.


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