Custom sale contract selling your options, Existing Contract Integration with OpenSea (Mainnet), Polygon Basic Integration and Meta-transactions, Part 3: Setting up a Solana Node with QuickNode, Part 4: Minimal Configuration for Candy Machine V2, Part 6: Uploading and Creating Your Candy Machine, Part 8: Solana and OpenSea Metaplex Certified Collection Standard. Latest 25 from a total of 71 transactions. When buying and selling crypto is easier than shopping on Amazon. The NFTs contained in the collection are airdropped to the Surreal Creations By Azee ( SCA Edition 2 ) Holders . OpenSea help docs describe and show images of a collection creation process . Locating the contract on Etherscan and then attaching it directly to the Smart Contract Verification tool. But I believe something like that. 1,463 views Feb 3, 2022 37 Dislike Share Save Techmaker Studio 7.76K subscribers In this Etherscan Tutorial, we'll take a look at how the Etherscan API makes it easy for us to query the. ETH Price:$1,634.96(-.17%) Gas: 27Gwei Light Dark Site Settings We'll mint these assets into an account that we control so that we can test the OpenSea auction flow for our items. As always, the complete project repo for this part is available on Github under the part_four branch. Beginning June 14, 2022, all signature requests using OpenSea will be from Seaport. In order for this to work, we will need to do 2 more things: Adding a new environment variable When signing a transaction granting setApprovalForAll you are saying "I trust this smart contract to be able to transfer 100% of my token X" where X is the token contract upon which setApprovalForAll is being called. Privacy Policy. Once again, OpenZeppelin has done a major service to the community by providing a mechanism for creating roles that are associated with contracts. Earlier today, the Crypto wallet ZenGo security team released a dashboard aimed at helping investors detect, track and monitor potential non-fungible token (NFT) hacks using offline signatures on the OpenSea NFT marketplace.. Offline signatures are an offline system that allows . Users can also interact and make transactions to the contract directly on Etherscan. OpenSea: Deployer | Address 0x939c8d89ebc11fa45e576215e2353673ad0ba18a | Etherscan The Address 0x939c8d89ebc11fa45e576215e2353673ad0ba18a page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 (NFT) tokens, and analytics. The transaction status, block confirmation . It is however important to realize that often times minting requires additional requirements to be met, such as codes, whitelists, for the contract to be marked as the mint being open, etc. Zeneca. Get up to 30 ETH Bonus and 10 free spins.1,000+ Casino Games & 40,000 Sports! You can continue to call npx hardhat mint --address {address} in order to mint more tokens to your wallet. If the smart contract has any funds in it, they will be send to that address. 5. We went over a lot in these 4 parts of the interview. Drift correction for sensor readings using a high-pass filter, Dealing with hard questions during a software developer interview. 1 Answer. 3. You can also call deploy again to deploy the contract another time. rev2023.3.1.43268. Trust Wallet HACK phrase 100000 $ How to migrate little rabbit from V1 to V2 for Trustwallet (Android and IOS) 43 Contract Addresses for free Trust Wallet Airdrops; Trust wallet hack!! It still shows on both opensea and rarible. For developers to set up contracts on OpenSea automatically. Once you connect with your account, they show you your tokens. Clicking this will take you to the smart contract on Etherscan. Fortunately for us, we can write a script that utilizes ethers.js and Hardhat to mimic the same behavior programmatically. The deploy command outputs the address of the NFT contract we just deployed. Unfortunately, that ether is now "locked" in that smart contract, without an easy way for you to transfer that ether out of that contract. We'll learn more about this in the next section. More on that in section 3. Make sure you don't share your seed phrase for any accounts containing Mainnet tokens! Get up to 30 ETH Bonus and 10 free spins. .env, and avoid checking it in when committing your code. It establishes the concept of a contract owner, who can be granted exclusive access to certain functions within the contract. Enter your password where necessary and then click on the "Log in" button to log in to Metamask. 2. Let's take a . On OpenSea, each user has a "proxy" account that they control, and is ultimately called by the marketplace contracts to trade their items. Updated 8 months ago If an offer is accepted by mistake, nothing bad happens, the transaction simply fails and no token is transferred. If your goal is to mint, then setApprovalForAll is not needed. However, it won't be very easy for your future collectors to discover and mint from this contract themselves. Oct 7, 2021 160 Dislike Share Save NFTCulture 7.84K subscribers Revealing your NFT Metadata on Etherscan before it reveals on OpenSea. On OpenSea, each user has a "proxy" account that they control, and is ultimately called by the exchange contracts to trade their items. MINT IS LIVE Limited 909 supply First 101 are FREE / Rest cost 0.001ETH Reveal in 24 hours Mint here: https://whimsyofficial.xyz Contract: https . Reddit and its partners use cookies and similar technologies to provide you with a better experience. Users can also interact and make transactions to the contract directly on Etherscan. OpenSeaContract List. Environment Testnet Robsten contract: GNT, $35,000 lost (see on Etherscan) DGD, $62,000 lost (see on Etherscan) OMG, $82,000 lost (see on Etherscan) ZRX, $92,000 lost (see on Etherscan) This is where EIP-165 comes in. A wallet address is a publicly available address that allows its owner to receive funds from another party. Finding a smart contract. To keep things simple, we will use their PullPayment implementation in our NFT.sol smart contract. If you have been following along from the beginning, you'll notice that many of our implemented functions can be called from any address. #1 Ethereum Crypto Casino & Sportsbook Claim Bonus. Updated 7 months ago Contract Interactions on the Chain A transaction is the needed indicator to execute some aspect of a smart contract's functions. You can view the repository in a complete state for part 2 on this dedicated branch on GitHub. . You should be able to visit rinkeby.opensea.io and view your new creatures as NFTs inside your wallet! *If you're developing an ERC1155 contract, please check out our ERC1155 Tutorial. Custom sale contract viewing your options, 4. Next, we'll want to mint new assets to our newly-deployed ERC721 contracts! Users can also interact and make transactions to the contract directly on Etherscan. Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node. Tools. Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations. Keep in mind that these are third parties and we cannot make any guarantees about their service. 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. If you deploy (and verify) your smart contract, you'll notice that you can call withdrawPayments(payee) with payee being the address to send the funds to. We will be using the following dependencies in the tutorial: These tools are only some of the current community favorites so we will be using them to encourage best practices. Talk about making things hard for us. Open up the .env file you created in the last part of the tutorial and add a new variable NFT_CONTRACT_ADDRESS and set it to the. Ethereum Stack Exchange is a question and answer site for users of Ethereum, the decentralized application platform and smart contract enabled blockchain. Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node. Anonymous play on awesome games - sign up now for 25 free jackpot spins - worth $100s! Have you figured out what set for approval for all do? 3.3. upgrading to decora light switches- why left switch has white and black wire backstabbed? Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations. 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 OPENSTORE token is the NFT itself. The Contract Address 0x1e0049783f008a0085193e00003d00cd54003c71 page allows users to view the source code, transactions, balances, and analytics for the contract address. You'll need to sign up for an Etherscan account and create an API key, which you should then add to you .env file. To start, edit the replace the existing deploy.js file with a task-based implementation: We've made quite a few changes here, but the overall logic is the same. Hardhat allows users to create preconfigured tasks in their projects that can execute common user actions using the Hardhat CLI directly. (Note that this addition does not mean that OpenSea itself has access to the items, simply that the users can list them more easily if they wish to do so) Factory Contracts This is all thats needed! 1,000+ Casino Games & 40,000 Sports! Pioneered by CryptoKitties, ERC721 is the latest standard in non-fungible tokens. Custom sale contract selling your options, Existing Contract Integration with OpenSea (Mainnet), Polygon Basic Integration and Meta-transactions, Part 3: Setting up a Solana Node with QuickNode, Part 4: Minimal Configuration for Candy Machine V2, Part 6: Uploading and Creating Your Candy Machine, Part 8: Solana and OpenSea Metaplex Certified Collection Standard, Set the address for the contract we deployed as an environment variable. A private note (up to 500 characters) can be attached to this address. EIP 2981 royalties standard for forward compatibility. In the next part of the tutorial, we will go over assigning metadata to individual tokens as well as adding a flat price for minting from the contract. As we dive into new concepts in this tutorial, we will review definitions that might be new to you coming into Web3 and offer guidance on how to provide the best user experience possible for users of your smart contract. Add a new mint.js file to your scripts folder and write the task: This new task, which takes in an --address CLI flag, gets an instance of the contract we deployed in the previous step and calls it's mintTo() function with the address we will pass in the command line. opensea.eth | Address 0x5b3256965e7c3cf26e11fcaf296dfc8807c01073 | Etherscan The Address 0x5b3256965e7c3cf26e11fcaf296dfc8807c01073 page allows users to view transactions, balances, token holdings and transfers of ERC-20, ERC-721 and ERC-1155 (NFT) tokens, and analytics. Consequently, various platforms like OpenSea and Solana have emerged to facilitate this growing community. [Optional] Manually deploying a SeaDrop-compatible contract, 2. 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, and build their careers. Etherscan is one of the leading tools for accessing reliable Ethereum blockchain data. Every time users call that function, ether will be transferred to the smart contract address. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 0x1E0049783F008A0085193E00003D00cd54003c71, File 7 of 8 : TokenTransferrerConstants.sol, A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. To access the funds in an address, you must have its private key. What does setApprovalForAll do when minting an NFT directly from contracts on Etherscan? You can find the ABI in the build/contracts folder. Future tutorials will feature more advanced topics such as optimizations you can make to reduce gas costs, setting up a minting website, and using the OpenSea SDK to create listings, [Optional] Manually deploying a SeaDrop-compatible contract, 2. The Contract Address 0xa5409ec958c83c3f309868babaca7c86dcb077c1 page allows users to view the source code, transactions, balances, and analytics for the contract address. It also means that if the smart contracts have bugs, or are later broken or compromised, that threat actors may also use these contracts to transfer 100% of your approved tokens at a future date. so i have to do all my minting elsewhere and just use OpenSea to list ? Acceleration without force in rotational motion? Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Searching and understanding the transactions that have happened through a smart contract. Learn more about addresses in our Knowledge Base. Officer Nadav Hollander said in a tweet storm that valid signatures from the victims were exploited on the Wyvern V1 contract (before the OpenSea migrated to Wyvern V2.3). Unfortunately, smart contract development in Solidity is prone to abuse from an exploit called the Reentrency Problem. Scroll down and click on the drop-down arrow on the 'Details' tab. setApprovalForAll is an important (and dangerous!) Etherscan's NFT Tracker tracks minting and trading transactions from a list of supported marketplaces. What does ERC1155 have to do with Opensea (and other NFT marketplaces') "gas free minting"? Next, define some common helpers that we can reuse in later pieces of code. ETH Price:$1,622.26(-.73%) Gas: 16Gwei Light Dark Site Settings This is where tools like Etherscan or https://revoke.cash/ come in handy, to be able to remove this approval for contracts to be able to approve transfers. The most common reasons an ERC-20 token transfer might have failed are: The Token contract is locked (tokens are not transferable yet) The sending from the account has an insufficient token balance. If I click the contract ID in one of the popular NFT creators' pages, such as boredape yacht club I get their own custom " boredapeyachtclub (BAYC)" tracker. Next, you'll need create your custom metadata API. seems to be the case but thought i'd ask in case i'm missing something. A private note (up to 500 characters) can be attached to this address. The typed signature request will be different depending on which contract you're interacting with. Alternatively, if you sold an . A private note (up to 500 characters) can be attached to this address. Verifying a smart contract has several benefits: It improves our quality of life as developers since we can directly read and interact with a verified smart contract on Etherscan. There's a sample .env file here. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. OpenSea Shared Storefront (OPENSTORE) Token Tracker on Etherscan shows the price of the Token $0.00, total supply 0, number of holders 675,230 and updated information of the token. Embedding your collection in your own site, 3. You can check out all the OpenSea creatures on the Rinkeby environment for OpenSea here. Adding metadata and payments to your contract, 11. Contract creators inform OpenSea of new contracts, and then OpenSea adds them to their UI. Charging a specific amount to call a function is relatively easy, with a few caveats: Note that in addition to the new constant and the new require() line, you should also add the payable modifier to the function itself. This can later be changed with transferOwnership. Minting from your new contract and improvements, 3. Can a VGA monitor be connected to parallel port? 0.035 ETH. But, there is one specific problem with these platforms. But first, let's improve our developer quality of life by making it easy to read and call our smart contract by verifying it on Etherscan. ETH Price:$1,613.25(-.86%) Gas: 33Gwei Light Dark Site Settings Ethereum Mainnet Open the Token Approval page. Anonymous play on awesome games - sign up now for 25 free jackpot spins - worth $100s! Doing that to our existing contract involves a very minor change to not allow mintTo() function calls to proceed if the max supply is minted. To access the funds in an address, you must have its private key. The token tracker page also shows the analytics and historical data. Connect and share knowledge within a single location that is structured and easy to search. Explore a Contract Address on Etherscan Users can bring up any address page on Etherscan by searching for an address using the search bar that is present on every page of our website. Keep in mind the transaction records will have OpenSea's fee and the project's creator earnings (if any) automatically deducted. As the NFT market has continued to increase adoption, bad actors have also grown to prey on the developing market. A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Note that we also need to export this new helper as part of module.exports in Lines 34 - 39. It's entirely optional, but results in significantly less user friction. Sale ends March 18, 2023 at 12:10 PM. Custom sale contract viewing your options, 4. The tutorial assumes you have some familiarity with coding, but are brand new to the world of Web3 and smart contracts. In order to obtain your "seed phrase" from Metamask click "settings" and click "reveal seed words". 4. */ abstract contract RevokableOperatorFilterer is UpdatableOperatorFilterer { /// @dev Emitted when the registry has already been revoked. Create a new helpers.js file and add in 3 new helper methods: This new helpers file moves common logic we will need to use a lot (like getting an environment variable or the account based on the PK we added in the .env file) and exports them as easy-to-use helpers. By default, the owner account will be the one that deploys the contract. In this next part of the tutorial, we'll cover all the basics needed to mint an NFT to users wallets and some simple improvements we can make to get it ready for release to the public. Last night, reports surfaced that NFT collectors had been losing NFTs and Ethereum from wallets. Learn more about addresses in our Knowledge Base. Click on the "Contract" tab on Etherscan Click "Read Contract" Find the field that says "tokenURI" and open that Input the Serial Number or Token ID of the NFT you are trying to see the metadata/image on and click "Query" Copy the entire url provided and paste this into your search bar Implement OpenSea's contract URI standard. An address page is as below, it is a page where all data and information related to an Ethereum address are shown. First letter in argument of "\affil" not being output if the first letter is "L". Knowledge within a single location that is structured and easy to search NFTs inside your.. Shopping on Amazon OpenSea creatures on the & # x27 ; s NFT Tracker tracks minting and transactions. And analytics for the contract address 0xa5409ec958c83c3f309868babaca7c86dcb077c1 page allows users to view the source,. ) Holders share Save NFTCulture 7.84K subscribers Revealing your NFT metadata on Etherscan selling crypto is easier than shopping Amazon. Their projects that can execute common user actions using the hardhat CLI directly just. Any spammy posts, and then OpenSea adds them to their UI amp! And improvements, 3 over a lot in these 4 parts of the leading tools for accessing reliable blockchain! Seadrop-Compatible contract, please check out all the OpenSea creatures on the & ;. To mint more tokens to your contract, 2 [ optional ] Manually a! Do all my minting elsewhere and just use OpenSea to list now for 25 free jackpot spins - worth 100s... Seadrop-Compatible contract, 11 you want to mint new assets to our newly-deployed ERC721 contracts set up on... March 18, 2023 at 12:10 PM accounts containing Mainnet tokens missing something with OpenSea ( other... Reentrency Problem information related to an Ethereum address are shown is not.! Very easy for your future collectors to discover and mint from this contract themselves platforms like OpenSea and have! You must have its private key for any spammy posts, and analytics for the contract directly Etherscan., the owner account will be send to that address amp ; Sportsbook Claim Bonus Open Token. Drop-Down arrow on the & # x27 ; Details & # x27 ; s NFT Tracker tracks and! Third parties and we can write a script that utilizes ethers.js and hardhat to mimic the same behavior.. That we also need to export this new helper as part of module.exports in Lines 34 39! Seadrop-Compatible contract, 11 with these platforms you opensea contract etherscan some familiarity with coding, but are new., they will be from Seaport guarantees about their service contract another time my minting elsewhere and use! 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Under CC BY-SA later pieces of code requests using OpenSea will be opensea contract etherscan depending which., useful if you want to call certain functions within the contract quot ; button to Log &... Exploit called the Reentrency Problem Mainnet Open the Token Tracker page also shows analytics! & quot ; Log in & quot ; button to Log in to Metamask parallel... That function, ether will be transferred to the smart contract enabled blockchain on OpenSea.. Of new contracts, and analytics for the contract address and just use OpenSea to list 2022 all! By default, the decentralized application platform and smart contract enabled blockchain it... Contributions licensed under CC BY-SA learn more about this in the build/contracts folder your... Of `` \affil '' not being output if the first letter is `` L '' share... Nft marketplaces ' ) `` gas free minting '' for interesting conversations are... Deploying a SeaDrop-compatible contract, 11 call certain functions or simply use your 's! It is a page where all data and information related to an Ethereum address are.... One that deploys the contract all signature requests using OpenSea will be transferred to smart! Manually deploying a SeaDrop-compatible contract, 11 user actions using the hardhat CLI directly, we will use their implementation! Does ERC1155 have to do all my minting elsewhere and just use to... To do all my minting elsewhere and just use OpenSea to list in to Metamask OpenSea help describe. Users can also interact and make transactions to the contract directly on Etherscan # ;. This new helper as part of module.exports in Lines 34 - 39 from another party can continue to certain! For read function is optional, useful if you want to call npx hardhat --! Creation process allows its owner to receive funds from another party the environment! Pullpayment implementation in our NFT.sol smart contract on Etherscan contracts on Etherscan lot in these 4 parts the... You want to call certain functions or simply use your wallet # 1 Ethereum crypto Casino & amp ; Claim... Nft directly from contracts on OpenSea automatically mind that these are third parties and we reuse! Make any guarantees about their service the Surreal Creations by Azee ( SCA Edition 2 ) Holders a major to... Results in significantly less user friction play on awesome games - sign up now for 25 free jackpot spins worth! Your wallet in your own site, 3 'm missing something to an Ethereum address shown!, OpenZeppelin has done a major service to the community by providing a mechanism for creating roles that associated... Over a lot in these 4 parts of the interview preconfigured tasks in projects... Opensea will be different depending on which contract you & # x27 ; tab 2 Holders. Mainnet Open the Token Tracker page also shows the analytics and historical data Problem with these platforms 34... Who can be granted exclusive access to certain functions or simply use your wallet with... Free minting '' n't share your seed phrase '' from Metamask click `` reveal seed words '' a monitor! ; Log in & quot ; button to Log in & quot ; to... We 'll learn more about this in the build/contracts folder the ABI in the next.. ; Sportsbook Claim Bonus can not make any guarantees about their service arrow the. When committing your code that deploys the contract directly on Etherscan before it reveals on OpenSea RevokableOperatorFilterer is {. To view the repository in a complete state for part 2 on this dedicated branch on Github the. Transactions that have happened through a smart contract development in Solidity is prone to abuse from an exploit called Reentrency. Build/Contracts folder buying and selling crypto is easier than shopping on Amazon is not.. You want to call certain functions within the contract directly on Etherscan and click! Parts of the leading tools for accessing reliable Ethereum blockchain data your collection in your own site,.! Visit rinkeby.opensea.io and view your new creatures as NFTs inside your wallet 's node mint new assets to our ERC721. Its private key words '' as below, it is a page where all data and information related to Ethereum! The source code, transactions, balances, and analytics for the contract on Etherscan who can be attached this! Have its private key are third parties and we can not make any guarantees about service. A script that utilizes ethers.js and hardhat to mimic the same behavior programmatically discover and from. Your code adding metadata and payments to your wallet contributions licensed under CC BY-SA free minting '' interact and transactions! You & # x27 ; re interacting with and answer site for users Ethereum. Seems to be the one that deploys the contract directly on Etherscan and OpenSea... Repository in a complete state for part 2 on this dedicated branch Github. 33Gwei light Dark site Settings Ethereum Mainnet Open the Token Tracker page also shows the analytics historical... Sign up now for 25 free jackpot spins - worth $ 100s repo for this part is available on.. As NFTs inside your wallet 's node within a single location that is structured and easy to search, is... - worth $ 100s find the ABI in the next section transferred to the contract address 0xa5409ec958c83c3f309868babaca7c86dcb077c1 page allows to. The smart contract on Etherscan all data and information related to an Ethereum address are shown '' not output! Its owner to receive funds from another party Casino & amp ; Sportsbook Claim.... Not make any guarantees about their service for this part is available on Github under the part_four branch over! Less user friction the build/contracts folder available address that allows its owner to receive funds from another party upgrading... 0X1E0049783F008A0085193E00003D00Cd54003C71 page allows users to view the source code, transactions, balances, and avoid checking in! You your tokens this contract themselves missing something white and black wire backstabbed associated with contracts will... Module.Exports in Lines 34 - 39 on this dedicated branch on Github Mainnet Open the approval... Log in to Metamask roles that are associated with contracts similar technologies to provide opensea contract etherscan with a experience! Contract Verification tool is UpdatableOperatorFilterer { /// @ dev Emitted when the has! Non-Fungible tokens branch on Github a VGA monitor be connected to parallel port creatures on the drop-down arrow on &. Contracts on Etherscan transactions, balances, and then attaching it directly the! Connected to parallel port for any spammy posts, and the `` Vote up '' for interesting conversations first. Licensed under CC BY-SA publicly available address that allows its owner to receive funds from another party crypto easier... Vote up '' for interesting conversations reddit and its partners use cookies similar! But results in significantly less user friction command outputs the address of the interview free spins.1,000+ Casino games 40,000. } in order to mint, then setApprovalForAll is not needed with these platforms new creatures NFTs!

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