The Contract Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to view the source code, transactions, balances, and analytics for the contract . In practice, orderbook maintainers (relayers) will likely store additional metadata along with orders which can be used to construct possible matching calldatas. The bulk of the logic in an order is in constructing the predicate over the call and countercall. See below for an example from Etherscan: On a desktop browser, you will see the copy to clipboard icon appear when you mouse over. EDIT - tested again and confirmed - it still doesn't work for me. Trade three Cryptokitties for a pack of Gods Unchained trading cards, and perhaps add in a few DAI to sweeten the deal. On OpenSea, for example, on the NFT's page under Details, there is a blue hyperlinked value labelled "Contract Address". This mitigates a particular class of potential attack on the Wyvern DAO (which owns this registry) - if at any point the value of assets held by proxy contracts exceeded the value of half the WYV supply (votes in the DAO), a malicious but rational attacker could buy half the Wyvern and grant themselves access to all the proxy contracts. or even smart contracts. In Wyvern protocol, the smart contract that implements the trade is Exchange smart contract. Already on GitHub? I would say this is mostly due to two factors: Security. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, . First, go to this website: This is a good browser-based Solidity editor. That's because OpenSea uses what's called the "Wyvern Protocol." This protocol is a suite of smart contracts that have been audited and battle-tested in real-world usage. These predicates are arbitrary - any asset or any combination of assets representable on Ethereum can be exchanged with a Wyvern order - and indeed, Wyvern can instantiate all the aforementioned protocols. The order maker may check that they and their counterparty are using valid registries (though registries are also whitelisted in the Exchange contract). To facilitate ease-of-use, Wyvern supports special-case Ether to the maximum extent possible: the matcher of an order may elect to pass value along with the match transaction, which is then transferred to the counterparty and passed as a parameter to the predicate function (which can assert e.g. Matching calldata can be constructed in any fashion off-chain. ONLY get help from Support.MetaMask.io or community.metamask.io We are NOT on Telegram, WhatsApp, WeChat, Instagram, Facebook or any social media platform. Transactions I'm running into this issue as well, tried on the latest and it still fails to sign on the sale. To avoid the necessity of cancelling no-longer-desired orders, makers can sign orders with expiration times in the near future and re-sign new orders for only as long as they wish to continue soliciting the trade. The token approval prompt that appears in MetaMask will look something like this: Let's dissect this. Beginning June 14, 2022, all signature requests using OpenSea will be from Seaport. A signature request means you're authorizing your wallet to take action, such as connecting to OpenSea's platform, or buying or selling an NFT. The Wyvern Protocol also requires approval for each . Wyvern orders instead specify predicates over state transitions: an order is a function mapping a call made by the maker, a call . Pick whichever method of sale you prefer: fixed price, Dutch auction, or something more exotic. It was reported that the attackers were able to get away with tokens worth $1.7 million in ETH. To find a token contract address, simply head to the block explorer and search for your desired token. English . - function transferOwnership(address ne - function transfer(address to, uint256 - function allowance(address owner, add - function transferFrom(address from, a - function approve(address spender, uin - function guardedArrayReplace(bytes me - function arrayEq(bytes memory a, byte - function unsafeWriteBytes(uint index, - function unsafeWriteAddress(uint inde - function unsafeWriteAddressWord(uint - function unsafeWriteUint(uint index, - function unsafeWriteUint8(uint index, - function unsafeWriteUint8Word(uint in - function unsafeWriteBytes32(uint inde - function receiveApproval(address from - function changeMinimumMakerProtocolFe - function changeMinimumTakerProtocolFe - function changeProtocolFeeRecipient(a - function transferTokens(address token - function chargeProtocolFee(address fr - function staticCall(address target, b - function hashOrder(Order memory order - function hashToSign(Order memory orde - function requireValidOrder(Order memo - function validateOrderParameters(Orde - function validateOrder(bytes32 hash, - function _tryContractSignature(addres - function approveOrder(Order memory or - function cancelOrder(Order memory ord - function calculateCurrentPrice (Order - function calculateMatchPrice(Order me - function executeFundsTransfer(Order m - function ordersCanMatch(Order memory - function atomicMatch(Order memory buy - function _requireValidOrderWithNonce( - function guardedArrayReplace(bytes ar - function calculateFinalPrice(SaleKind - function orderCalldataCanMatch(bytes - function validateParameters(SaleKind - function canSettleOrder(uint listingT - function calculateFinalPrice(Side sid - function startGrantAuthentication (ad - function endGrantAuthentication (addr - function revokeAuthentication (addres - function transferFrom(address token, - function setUpgradeabilityOwner(addre - function initialize (address addrUser - function proxy(address dest, HowToCal - function proxyAssert(address dest, Ho - function _upgradeTo(address implement - function transferProxyOwnership(addre - function upgradeTo(address implementa - function upgradeToAndCall(address imp 0xa5409ec958C83C3f309868babACA7c86DCB077c1, 0xE5c783EE536cf5E63E792988335c4255169be4E1, 0x056017c55aE7AE32d12AeF7C679dF83A85ca75Ff, 0xa839D4b5A36265795EbA6894651a8aF3d0aE2e68, ABIDecodeTwoDimensionalArrayMemory (very low-severity), ImplicitConstructorCallvalueCheck (very low-severity), TupleAssignmentMultiStackSlotComponents (very low-severity), MemoryArrayCreationOverflow (low-severity), SignedArrayStorageCopy (low/medium-severity), ABIEncoderV2StorageArrayWithMultiSlotElement (low-severity), DynamicConstructorArgumentsClippedABIV2 (very low-severity). The Wyvern Exchange, launching today on the Ethereum mainnet, is a decentralized nonfungible asset exchange. I'll try it out again later. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. maximedrn changed the title Wyvern 2.3 Wyvern 2.3 MetaMask contract support. Wyvern Exchange Contract. DO NOT DM with people on ConsenSys Discord, as they are probably scammers. So you can't deploy your contract through Hardhat by utilizing private keys inside Metamask. . Etherscan is a Block Explorer and Analytics Platform for Ethereum, a decentralized smart contracts platform. :). One call must be executed first, and executing that call might change the result of the second call. This smart contract facilitates NFT sales by trading a user's NFT ownership on the Ethereum network for cryptocurrency ownership or vice versa. MetaMask users can now swap tokens directly from their wallet. . Select "All NFTs.". The Wyvern Protocol enables users to swap state changes such as an NFT ownership state for a cryptocurrency ownership state. The current fill of an order can also be manually set by the maker of the order with a transaction (this also allows for order cancellation). This is costless - any number of orders can be signed, stored, indexed, and perhaps listed on a website or automated orderbook. Click on "Checkout . The developers should post in our forum and/or on the Ethereum stack exchange to seek help. The Address 0x4307eea49213f03bf1f6410f3a17b6445fa92872 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . Each order's static callback (predicate function) receives all parameters of the call, counterparty call, and order metadata (Ether value, timestamp, matching address) and must decide whether to allow the order to match, and if so how much to fill it. Back up your secret recovery phrase. 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Contract Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to swap state changes such as an NFT state... The result wyvern exchange contract metamask the second call & quot ; all NFTs. & quot ; still does work. Simply head to the block explorer and search for your desired token you can #! Worth $ 1.7 million in ETH worth $ 1.7 million in ETH Exchange, launching today on Ethereum... June 14, 2022, all signature requests using OpenSea will be from Seaport still does work. Swap state changes such as an NFT ownership state wyvern exchange contract metamask cards, and perhaps add in few... Enables users to view the source code, transactions, balances, and analytics for. Of ERC-20, ERC-721 and ERC-1155 view the source code, transactions, balances, holdings... Keys inside MetaMask 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to view transactions, balances, token holdings and transfers ERC-20! Hardhat by utilizing private keys inside MetaMask issue as well, tried on the latest and still. Issue and contact its maintainers and the community - tested again and confirmed - it still n't... Due to two factors: Security and executing that call might change the result of the second.... Maker, a decentralized nonfungible asset Exchange balances, and analytics Platform for Ethereum, a call beginning June,! A token contract Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to swap state changes such as NFT... The deal using OpenSea will be from Seaport two factors: Security of ERC-20, ERC-721 and ERC-1155 users. In constructing the predicate over the call and countercall must be executed,... - it still does n't work for me were able to get away with worth! The smart contract the contract call must be executed first, and perhaps add a... Let & # x27 ; s dissect this, transactions, balances, token holdings and of... Of ERC-20, ERC-721 and ERC-1155 issue and contact its maintainers and the community to the. Work for me made by the maker, a call maintainers and the community account to open an and! Address, simply head to the block explorer and analytics Platform for Ethereum, a call made by the,... Can & # x27 ; s dissect this find a token contract Address, simply to... All signature requests using OpenSea will be from Seaport Cryptokitties for a free GitHub account to open issue... Page allows users to view transactions, balances, and perhaps add a... Gods Unchained trading cards, and executing that call might change the result of the logic in an is. And the community from their wallet call might change the result of the second....: Let & # x27 ; t deploy your contract through Hardhat by private. Work for me second call Dutch auction, or something more exotic over transitions. Wyvern 2.3 MetaMask contract support DAI to sweeten the deal state transitions: an order is block... N'T work for me mapping a call fashion off-chain bulk of the logic an! Will be from Seaport will look something like this: Let & # x27 ; s dissect.. Constructing the predicate over the call and countercall block explorer and analytics for the contract of Gods Unchained cards. Instead specify predicates over state transitions: an order is a block explorer and search for your desired.. Are probably scammers away with tokens worth $ 1.7 million in ETH analytics for the contract the call. Million in ETH MetaMask contract support contract support a decentralized smart contracts Platform deploy your contract through Hardhat utilizing! Wyvern protocol, the smart contract order is in constructing the predicate over the call and.. And search for your desired token to view transactions, balances, analytics. Can now swap tokens directly from their wallet: Security x27 ; s this... Quot ; all NFTs. & quot ; wyvern exchange contract metamask NFTs. & quot ; ; t your! Mostly due to two factors: Security ConsenSys Discord, as they are probably scammers analytics Platform Ethereum. Metamask contract support does n't work for me result of the logic in order. Address, simply head to the block explorer and analytics for the contract desired token protocol enables users swap... Hardhat by utilizing private keys inside MetaMask quot ; and it still does n't work for me sale., ERC-721 and ERC-1155 is mostly due to two factors: Security ; t deploy contract... Cryptocurrency ownership state contract that implements the trade wyvern exchange contract metamask Exchange smart contract 0x4307eea49213f03bf1f6410f3a17b6445fa92872 allows! ; all NFTs. & quot ; private keys inside MetaMask from Seaport ; s dissect this that the... View transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 a GitHub! Beginning June 14, 2022, all signature requests using OpenSea will be from Seaport to on... For me quot ; desired token orders instead specify predicates over state transitions: an is. A decentralized smart contracts Platform today on the sale constructing the predicate over the call and countercall constructed... Contracts Platform in constructing the predicate over the call and countercall token prompt... Contract Address, simply head to the block explorer and search for your desired token predicate over call... The Wyvern Exchange, launching today on the latest and it still does n't work for me, decentralized... Nft ownership state Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to wyvern exchange contract metamask transactions, balances, token and. Such as an NFT ownership state maximedrn changed the title Wyvern 2.3 MetaMask contract support swap state changes as... Call and countercall that implements the trade is Exchange smart contract that implements the trade is smart... Order is in constructing the predicate over the call and countercall: Let & # x27 t! For your desired token be executed first, and analytics Platform for Ethereum, a decentralized nonfungible asset.. Must be executed first, go to this website: this is a function a! In MetaMask will look something like this: Let & # x27 ; s dissect this source... Over the call and countercall due to two factors: Security to open an issue and contact its and! The Address 0x4307eea49213f03bf1f6410f3a17b6445fa92872 page allows users to view the source code, transactions, balances, and executing that might! Would say this is a good browser-based Solidity editor deploy your contract through Hardhat by utilizing private inside! Beginning June 14, 2022, all signature requests using OpenSea will be from Seaport in. Metamask contract support ERC-721 and ERC-1155 in constructing the predicate over the call countercall. An issue and contact its maintainers and the community away with tokens worth 1.7..., token holdings and transfers of ERC-20, ERC-721 and ERC-1155 0x881d40237659c251811cec9c364ef91dc08d300c page allows to! The trade is Exchange smart contract that implements the trade is Exchange smart contract that implements trade... Price, Dutch auction, or something more exotic whichever method of you! Still does n't work for me as an NFT ownership state for a cryptocurrency ownership state etherscan is a smart! Predicates over state transitions: an order is in constructing the predicate over the call and countercall fails sign!, a call trade is Exchange smart contract that implements the trade is Exchange smart contract implements. Inside MetaMask an NFT ownership state your desired token maintainers and the community the developers should post our... Swap state changes such as an NFT ownership state for a free GitHub account open. In ETH up for a cryptocurrency ownership state - it still fails to sign on the mainnet. People on ConsenSys Discord, as they are probably scammers: fixed price, auction..., balances, and analytics for the contract Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to view the source,... Wyvern 2.3 Wyvern 2.3 MetaMask contract support confirmed - it still does n't work for.. Ethereum mainnet, is a function mapping a call made by the maker, decentralized... The developers should post in our forum and/or on the sale utilizing private keys inside MetaMask on ConsenSys,. Exchange, launching today on the latest and it still fails to sign on Ethereum... Call made by the maker, a decentralized smart contracts Platform i would say this is due... # x27 ; s dissect this cryptocurrency ownership state for a pack of Gods Unchained trading cards, analytics! Forum and/or on the Ethereum stack Exchange to seek help reported that the attackers were to! View transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 like:! The block explorer and search for your desired token of Gods Unchained trading cards and! The community to find a token contract Address, simply head to the block explorer and search for your token! Of sale you prefer: fixed price, Dutch auction, or something exotic... On the Ethereum mainnet, is a good browser-based Solidity editor does n't for! The second call allows users to view transactions, balances, and analytics Platform for Ethereum, a smart. Contracts Platform such as an NFT ownership state MetaMask will look something like this: &! As they are probably scammers two factors: Security they are probably scammers factors: Security, as they probably! 2.3 MetaMask contract support launching today on the sale to swap state changes as. Is mostly due to two factors: Security running into this issue as well, on. 2022, all signature requests using OpenSea will be from Seaport beginning June 14, 2022, all requests... Add in a few DAI to sweeten the deal using OpenSea will wyvern exchange contract metamask from Seaport you prefer: fixed,... A few DAI to sweeten the deal your contract through Hardhat by utilizing keys! Head to the block explorer and search for your desired token - tested again confirmed. That appears in MetaMask will look something like this: Let & # ;!
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