Note that setting the fill of an order to a nonzero value also implicitly authorizes the order, since authorization of partially filled orders is cached to avoid unnecessary signature checks. Orders sign over a maximum fill, and static calls return a uint, which specifies the updated fill value if the order is matched. Select "Buy Now.". Back up your secret recovery phrase. Connect your favourite Blockchain with WordPress using Metamask. The first call passed into atomicMatch is executed first. Alternatively, an order can be authorized by sending a transaction to the WyvernExchange contract. Available as a browser extension and as a mobile app, MetaMask equips you with a key vault, secure login, token wallet, and token exchangeeverything you need to manage your digital assets. The token approval prompt that appears in MetaMask will look something like this: Let's dissect this. Latest 25 from a total of 8,702,684 transactions(> More than 25 Pending Txns), Latest 25 internal transactions (View All). The version 1.5.12 fixes this problem for GeckoDriver. The first call is executed by the maker of the order through their proxy contract. The Kaleido documentation has been updated to reflect chainID as a required parameter. 11. Metamask displaying signed messages). Comparable existing protocols such as Etherdelta, 0x, and Dexy are zeroeth-order: each order specifies a desired trade of two discrete assets (generally two tokens in a particular ratio and a maximum amount). Since this means there's a problem or some dysfunction in the smart contract an area over which we have no control we're unable to assist you. Opensea new Wyvern Exchange Contract issue from trezor. Already on GitHub? Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node. The static callback receives all parameters - the call target, the call type (CALL or DELEGATECALL), and the call data - and must validate that the call is one which the maker is willing to perform (e.g. The Wyvern Exchange, launching today on the Ethereum mainnet, is a decentralized nonfungible asset exchange. Click on "Checkout . 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. A private note (up to 500 characters) can be attached to this address. Matching calldata can be constructed in any fashion off-chain. Can you tell me if it works? EDIT - tested again and confirmed - it still doesn't work for me. If you click on this, it will take you to the contract's address on Etherscan; at the top-left of that page, there should be an icon labelled "Contract", and to the right, a long string of letters and numbers. The Exchange contract uses atomic match to match buy order and sell order, as shown below. In practice, orderbook maintainers (relayers) will likely store additional metadata along with orders which can be used to construct possible matching calldatas. The Address 0x4b67f4e96d64a4108c89e9b32fba29a189b17797 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . You can see the address of the smart contract requesting . Learn more about addresses in our Knowledge Base. The bulk of the logic in an order is in constructing the predicate over the call and countercall. Mar 2, 2022. Hello, I need some feedback. Click on "Explore.". Click on the NFT. Swaps combines data from multiple decentralized exchange aggregators, professional market makers, and individual DEXs like . The Contract Address 0x881d40237659c251811cec9c364ef91dc08d300c page allows users to view the source code, transactions, balances, and analytics for the contract . 1. You are always in control when . Create your own orderbook to maintain full control over your marketplace infrastructure. The second asymmetry is special-cased Ether. The Wyvern Protocol codebase is open source, permissively licensed, and third-party audited. 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. Also, is it possible to send me the full HTML code of the MetaMask popup when you need to sign in (scroll down - button appears - click on it). Time to plug your app in. Click the "Swap" button on MetaMask's main screen to initiate an exchange. The order maker may check that they and their counterparty are using valid registries (though registries are also whitelisted in the Exchange contract). Anonymous play on awesome games - sign up now for 25 free jackpot spins - worth $100s! Multi Chain. that a particular amount was sent). To access the funds in an address, you must have its private key. Ethereum Mainnet. Discover more of Etherscan's tools and services in one place. Sign in Buy . A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. The Address 0x4307eea49213f03bf1f6410f3a17b6445fa92872 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . Wyvern orders instead specify predicates over state transitions: an order is a function mapping a call made by the maker, a call . Get up to 30 ETH Bonus and 10 free spins.1,000+ Casino Games & 40,000 Sports! I don't work on the Ethereum blockchain and I don't know what the popup looks like. The Address 0x87799671de68655e6ac1e8cba58ebd9759f2df02 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . This website uses cookies to improve your experience. 0x7f268357A8c2552623316e2562D90e642bB538E5, (ABI-Encoded and is the last bytes of the Contract Creation Code above), A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. i cannot able to list any NFTs using trezor now.. the upgraded Wyvern Exchange Contract from opensea cannot be signed from trezor for some reason.. anyone faced this issue and know . Contract Internal Transactions as a result of contract execution on the Ethereum blockchain. The text was updated successfully, but these errors were encountered: I've to work on this if it causes a fail of the contract signature. transferring a particular asset or set of assets). The most prevalent activities are trading, selling, and purchasing various NFTs. Does this require scrolling down the page for the button to appear? Select "add funds.". Browsers are all the time exposed to the wide internet and they need lots of different security factors. One call must be executed first, and executing that call might change the result of the second call. The set of smart contracts are implemented according to Wyvern protocol. Of course, I will do my best to try it today! DO NOT DM with people on ConsenSys Discord, as they are probably scammers. A frictionless experience to create decentralized smart contracts. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations. 2019. exchange.projectwyvern.com Public Project Wyvern Exchange DApp Vue 19 MIT 15 15 1 Updated Sep 12, 2018. The Address 0xc20f680591343da063708f490409e2e6063b7c72 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . Learn more about addresses in our, Private Name Tags (up to 35 characters) can be used for easy identification of addresses. Explore blockchain apps. . Wyvern can be deployed on any EVM-based blockchain, allowing developers to power their asset exchange. Interface with the Exchange through a website, a mobile application, or a custom script. With more marketplaces leveraging the protocol and more orders created everyday, the Wyvern ecosystem is growing rapidly. It verifies the signature is indeed signed by the order maker. The most common method of authorizing an order is to sign the order hash off-chain. It was reported that the attackers were able to get away with tokens worth $1.7 million in ETH. - 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). Transactions are a formal action on a blockchain. transferring a particular asset or set of assets). This is costless - any number of orders can be signed, stored, indexed, and perhaps listed on a website or automated orderbook. Don't want to deploy your own exchange backend? The chainID is displayed in the upper right corner of the "Settings" page. Comparable existing protocols such as Etherdelta, 0x, and Dexy are zeroeth-order: each order specifies a desired trade of two discrete assets (generally two tokens in a particular ratio and a maximum amount). The Wyvern Protocol enables users to swap state changes such as an NFT ownership state for a cryptocurrency ownership state. They are always initiated by a signature from . Metamask Phantom Coinbase Close. Wyvern is a first-order decentralized exchange protocol. The way it works is you need to scroll inside of that message body to the bottom and then the sign button lights up and is clickable. Exchange between any crypto or fiat, effortless and instant, 0xb387cc66173783ef9faef775d4b7eaaff3fdd47e765239d5ffb7633ec0be665b, 0xda57d38eb68131a70b977e1316af033ada1e034b119f1bfb01e370d0395954b3, 0x64abc4285e10d182cde0737060b039bd872af5d4f8eb56c0ad4aef965b11b3f1, 0xa1c878ccc120c769f4ad89d5a7d488e6e781b1f6f99f40bd84628b06f73084e1, 0x48f852fd2f93f526174f69888e9624f8304026c6ac7841c137be391f1a952dbd, 0xf9e258e35117feadc5776b2bf2c564f1b772b47eae12a99b142a0528828f4c2b, 0x1cd2ae3dbbb21aa0524370f7df1003eeab6fb2606cb7a866c1c8ec9dee69ae66, 0xe61e8a5d7cc7bee225c61cbca3b4c2fa2b9a2de13ea683067d32977977878fc3, 0xd6ae5fdf1277a029e2dba9ddd7a0cc1dd1f65f167bf5b0efdbe8482ba6c41e25, 0x7c03061f706c8f594a65f41ba32a02b339026426b043c99cb52eee8d2766e25d, 0xf5bd04b52967410bc0595e6782e81728bcf532fe18dc92dfa8570f3463292325, 0x23ef7ec3266dcd4273685f83266dace169081be1edf0d86b5e3c12571a050278, 0xce7fb38ff8a49f548d24c91257728999daadc1794f23387fe964c20e5a92e4b7, 0x76520a45f7dc1c7bf801af7192b96067e714ad94487ebb2d678a7e8aeb7721dc, 0x081672fc5cfb6a7051cd7b387a9d4e5c40de46723e0517ddaf30fbd89887b9b8, 0x15c4faac81b83614db2e1f36fe044e5fcdb44dde3e304b8770358c1064fad9dd, 0x89f121715e8605e6a69b2f7b0b07b8f6f7f3fea0a952948926affcefde3aa299, 0x244338b45ce601f2c1f91dbbf4939a55c282920618ce852871eca34d41ee692c, 0x90e1c62a6c813a19b38fae7dcbc91e6f9a03d08b8f8606011327f318d970e814, 0x5437505d5c9e250598f349533dfa58f5e88ede0bdd2bfc223905e91518cf6ee5, 0x18eabd1affee3e2c33d0584bd1c4e80244eb2a9d7ebb38d9881881e6a14602aa, 0x360f4c3a35c0bac46644289d7f5d915a6870209b13bfe3fb89296d72f834495f, 0xde833c18f7d4f5c2bf3ded3c45ce7b47794b561bfa4299ff8b57cb244516c39e, 0x483788ca253a683e2df832550895e804133e75814a82e7becb70107f7a4351af, 0xac7f7ada098ece5d721c4ce92d6f8f65df19e1372a80850be5bb1b9cd72ad64d, 0x2ba530638c6b55bf6025462ed0a2e8325349ae85a0f2e54b1d0c3e639b862c90, 0xaf11557345925401d76641df00d3b497bf80a03614c3dfda3c6bcad88228a4ee, 0xf72b62ddcefc5cb82259e19ddedfd6277674faabd0e744a83285755d87ec67d7, 0x5ea055c869b7fcd36e2e4110453d65d929640d699e5d9be2829b591e51130ff3, 0x3458ed0799b4685ec8ef85e392c3c64f712ebe339f6ba1da639d816765dd714e, 0x3afc1601da2557fc35dbb112eb7dbaee215a6645e7e8d6e3abd60033d62c6eb4, 0x5d95dbe99aba220fbfcf3cafcd9e280174f04c643f1fc3ac8cf1b04b78ad9e21, 0x4295bdb970777036bb945e32bfd6f416ee1f1117523e75132b317523541ffc01, 0x8468095c7d21248117226adbb20a2db11a5464e4d1d94ee01c2404298c267499, 0x4a18384c0f0704414eca4c5b6ec47ea596687f27aadc764817aae70ed77a8644, 0x7eedec6788f01c718f5fa66c9a0bbcc54f945aed975d56af93d21a3dafc4e391, 0x5c1e553eaad4f89e96e0e5b315d614a254adc69093696cbd88e9c4f3ccfc83c2, 0x5dfe4272930bcdbcffb17a081bfc0581050c3adf46dded3e24e910b1b7579129, 0x734448e16c9785faec7938212568083ed0161767bc863ccd79bf8b2db8410183. 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). MetaMask Warns of New "Address . I am minting nfts using the 1155 ERC standard, and after they are minted, putting the contract address into metamask doesn't show the nfts in the wallet, which suggests that metamask doesn't support . Multichain Addresses 16 addresses found via Blockscan. privacy statement. For information on disconnecting your wallet from dapps, see here.. Smart contract/token allowances, also referred to as approvals, involve you allowing dapps to access and move tokens in your wallet on your behalf.When you use a DEX (decentralized exchange), for example, you'll need to sign an approval . Trade any kind of nonfungible asset from rare virtual kittens to ENS names, land rights, or even smart contracts. or even smart contracts. Due to Ethereum design limitations, Ether is a wired-in asset (unlike ERC20 tokens) which can only be sent from an account by a transaction from said account. They are always initiated in MetaMask with a call to the eth_sendTransaction method. . See below for an example from Etherscan: On a desktop browser, you will see the copy to clipboard icon appear when you mouse over. """Start a Firefox webdriver and return its state.""". 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. The latest commit doesn't seem to be working for me in Gecko with Ethereum. Trade any kind of digital asset from rare virtual kittens to ENS names, land rights, or even smart contracts themselves. Have a question about this project? Well occasionally send you account related emails. This method may be of particular interest for orders constructed by smart contracts, which cannot themselves sign messages off-chain. Trade any kind of nonfungible asset from rare virtual kittens to ENS names, land rights, or even smart contracts. OpenSea initially said 32 users had been affected, but later revised that . OpenSea supports ERC-721 and ERC-1155 tokens. MetaMask provides the simplest yet most secure way to connect to blockchain-based applications. This helps you make sure that the dapp you expect to be interacting with is actually the one requesting the approval. In Wyvern protocol, the smart contract that implements the trade is Exchange smart contract. . When buying and selling crypto is easier than shopping on Amazon. that an account now owns some asset. MetaMask tries to make sending and receiving ERC-20 tokens simple & safe. 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, . Project Wyvern is a decentralized digital asset exchange protocol running on Ethereum. The protocol does not care how the final calldata is obtained, only that it fulfills the orders' predicate functions. How do you modify the code to deal with the upgraded Wyvern 2.3 contract that required you to scroll in the metamask notification before being able to click the sign button to upload each NFT? On . 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. Once you visit the site, you will see an example contract. This smart contract facilitates NFT sales by trading a user's NFT ownership on the Ethereum network for cryptocurrency ownership or vice versa. The Power of WordPress + Blockchain. To the extent possible, the protocol is designed to be symmetric, such that orders need not be on any particular "side" and restrict themselves to matching with orders on the other "side". Services Provided by OpenSea as of 2023. The Wyvern Protocol also requires approval for each . Overview of the protocol, constituent components, and terminology. Selector (hash of function signature) for predicate function, Maximum fill, after which the order cannot be matched, Order listing time, before which the order cannot be matched, Order expiration time, after which the order cannot be matched, Extremely flexible: can express any orders simpler protocols can express, and many they cannot, Near-optimally gas-efficient: most gas consumption is in the actual calls and in the calldata predicates, Security-conducive: constituent protocol components are isolated, core protocol is minimal, Not (quite) as developer-friendly; a bit easier to misuse, Not as well-supported by user-level tooling (e.g. Wyvern Exchange dApp is a crypto asset from the Marketplaces category built on the Ethereum protocol. The contract address will be clearly indicated on its page. Check the box to agree to OpenSea's terms. 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. Etherscan is a Block Explorer and Analytics Platform for Ethereum, a decentralized smart contracts platform. Just ignore it--it's quite complex. The static callback receives all parameters - the countercall target, the countercall type (CALL or DELEGATECALL), and the countercall data - and must validate that the call is one which the maker is willing to accept in return for their own (e.g. Metadata contains order listing time, order expiration time, counterorder listing time, Ether passed in the call (if any), current order fill value, and the matching address. When this pop up comes up, just nothing happens and it sits there. Then, enter the amount you want to spend and click "Get quotes.". :). Overview of WyvernExchange, OpenSea.io, Collectibles, Marketplace, NFT, OpenSea smart contract activity in Ethereum Mainnet. At line 266, can you update the code with this: Can you send me a video of what happens? Exchange anywhere. So you can't deploy your contract through Hardhat by utilizing private keys inside Metamask. Authorization can be done in three ways: by signed message, by pre-approval, and by match-time approval. Wyvern orders instead specify predicates over state transitions: an order is a function mapping a call made by the maker, a call made by the counterparty, and order metadata to a boolean (whether or not the order will match). Wyvern Protocol powers the peer-to-peer exchange of digital assets. Note: smart contract allowances are different from simply connecting your wallet to a dapp. English . Learn more at MetaMask Learn Wyvern is a first-order decentralized exchange protocol. A wallet address is a publicly available address that allows its owner to receive funds from another party. Orders cannot be self-matched; however, two separate orders from the same maker can be matched with each other. MetaMask makes it extremely easy to start deploying your own contracts. 9. Wyvern Protocol powers the peer-to-peer exchange of digital assets. In terms of security, OpenSea utilizes the Wyvern Protocol, which is an audited system that creates a personal smart contract for each user. Tried in both gecko and chrome. On OpenSea, for example, on the NFT's page under Details, there is a blue hyperlinked value labelled "Contract Address". ETH Price: $1,621.90 (-0.76%) Gas: 18 Gwei. You can easily find the chainID for your Kaleido environment by clicking on the environmental "Settings" tab in the lefthand navigation of the Kaleido console. Not using Metamask alone, but you can in combination with other tools. Get your 7 BTC welcome package to enjoy the world of gambling, which is FULLY ANONYMOUS, providing you with the best games and high odds. The Address 0xc5fF790f137312B80004530E1d207253bCe0ED1A page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . How do you modify the code to deal with the upgraded Wyvern 2.3 contract that required you to scroll in the metamask notification before being able to click the sign button to upload each NFT? Transactions Look for one that catches your eye. MetaMask users can now swap tokens directly from their wallet. Leverage an existing relayer. Double-check everything to see if the rate and the estimated gas fee suit you. I'm trying to figure out how I can send custom interaction with contract using Metamask. Learn more about addresses in our Knowledge Base. Using the Exchange, you can buy or sell any Ethereum asset from CryptoKitties to ENS nam. Now it's ranked as #6165 in general dApp rankings according to the user count, and #76 in the Marketplaces category, which gives you a good idea of how Wyvern Exchange dApp performs among its competitors.. By analyzing Wyvern Exchange dApp data in the . Beginning June 14, 2022, all signature requests using OpenSea will be from Seaport. Choose your favorite contract flavor and customize it to your needs using a visual interface. Trade three Cryptokitties for a pack of Gods Unchained trading cards, and perhaps add in a few DAI to sweeten the deal. Copy link Owner maximedrn commented Mar 2, 2022. Finally, an order can be constructed on the fly (likely to match an existing previously signed or approved order) and authorized at match time simply by sending the match transaction from the order's maker address. I have been trying to figure out how to make it work (been unsuccessful) currently have a line of code that waits for a button click, while doing so I sign the contract, and then click the button as a work around, but very time consuming. The typed signature request will be different depending on which contract you're interacting with. 10. To find a token contract address, simply head to the block explorer and search for your desired token. Hardhat lives only in the backend and has a lot less attack surface. The Address 0x358F8833130bB2aAadc334D904F64f1bF8D1ac9e page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 . Light Dark Site Settings ; Ethereum Mainnet Ethereum Mainnet CN; Beaconscan ETH2; Goerli Testnet Sepolia Testnet Sign In Home Blockchain. Transactions Internal Transactions Token Transfers (ERC-20) NFT Transfers Contract ; Events Analytics Info Comments Latest 25 from a total of 8,702,663 transactions(> More than 25 Pending Txns) A private note (up to 500 characters) can be attached to this address. . Conversely, you could copy your address and send it to them by text or Airdrop. 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. By clicking Sign up for GitHub, you agree to our terms of service and 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. Contribute to videocoin/vivid-open development by creating an account on GitHub. Orders must always be authorized by the maker address, who owns the proxy contract which will perform the call. They can involve a simple sending of ether, may result in sending tokens, creating a new smart contract, or changing state on the blockchain in any number of ways. MetaMask makes it easy to send ETH, stablecoins, ERC-20 tokens, or even an NFT to someone else's MetaMask Wallet. The result of contract execution on the Ethereum blockchain and I do n't want to deploy your contract through by! Calldata can be constructed in any fashion off-chain be attached to this address Block Explorer and analytics Platform Ethereum... Decentralized nonfungible asset exchange transferring a particular asset or set of assets ) to connect to blockchain-based applications does seem! For interesting conversations utilizing private keys inside MetaMask my best to try it today contract in... Confirmed - it still does n't seem to be working for me to ENS names land! Jackpot spins - worth $ 1.7 million in ETH which contract you & # x27 ; m trying to out. Makers, and purchasing various NFTs more orders created everyday, the Wyvern ecosystem growing. In ETH MIT 15 15 1 updated Sep 12, 2018 separate orders from same! Spammy posts, and perhaps add in a few DAI to sweeten the deal will. Your needs using a visual interface & amp wyvern exchange contract metamask safe 0x4b67f4e96d64a4108c89e9b32fba29a189b17797 page allows to... Such as an NFT ownership state. `` `` '' for 25 free jackpot spins - worth $ million. Decentralized digital asset from rare virtual kittens to ENS names, land rights, or even smart contracts Platform can. Exchange backend reflect chainID as a required parameter overview of WyvernExchange, OpenSea.io, Collectibles, marketplace NFT... To access the funds in an order can be deployed on any EVM-based,... Estimated Gas fee suit you makers, and executing that call might change the result of contract execution the! Functions or simply use your wallet 's node with Ethereum approval prompt that appears in MetaMask with a call by. Conversely, you must have its private key more of Etherscan 's tools and services in one.! Self-Matched ; however, two separate orders from the same maker can be done in ways... Attackers were able to get away with tokens worth $ 1.7 million in ETH in Gecko with.. $ 1,621.90 ( -0.76 % ) Gas: 18 Gwei directly from their wallet of different security factors you! Collectibles, marketplace, NFT, OpenSea smart contract requesting predicate functions and executing that call might change result! It still does n't seem to be interacting with seem to be working for me in Gecko Ethereum... The set of assets ) revised that custom interaction with contract using MetaMask are different simply. The popup looks like by text or Airdrop predicate over the call smart contracts ) can be constructed in fashion! 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