Ackermann Function without Recursion or Stack, "settled in as a Washingtonian" in Andrew's Brain by E. L. Doctorow, Choosing 2 shoes from 6 pairs of different shoes. 2. Cookie Notice 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. Unfortunately, that ether is now "locked" in that smart contract, without an easy way for you to transfer that ether out of that contract. Embedding your collection in your own site, 3. We can now run our new tasks using the Hardhat CLI to quickly repeat common actions: Note: you might get a message from ethers.js that you are being throttled by Alchemy. The last part to verify the contract is simple, just call the Hardhat task! Next we'll learn about how to structure that metadata so it can be picked up by OpenSea. Here's what helper.js should look like after importing the ethers helper and defining our new method. ETH Price: . For more information, please see our We'll learn more about this in the next section. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Leveraging the ERC721 standard to make your items instantly tradeable on OpenSea. Can a private person deceive a defendant to obtain evidence? If you're using an NFT marketplace like Opensea, locate the "Transfer" tab after you have chosen the NFT. But I believe something like that. Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? Next, you'll need create your custom metadata API. On OpenSea, each user has a "proxy" account that they control, and is ultimately called by the marketplace contracts to trade their items. After deploying to the Rinkeby network, there will be a contract on Rinkeby that will be viewable on Rinkeby Etherscan. You can find the address of the deployed contract in the output of the deployment command and find it on Etherscan by hitting the URL: https://rinkeby.etherscan.io/address/. Transferring an NFT using Metamask or Opensea. The best method to determine if a mint is open is to read the contract itself, or check in with the author. $55.88. Thanks for contributing an answer to Ethereum Stack Exchange! It also builds trust with your community since they can go directly to your smart contract and ensure that the code you wrote is safe to interact with. Ultimately you are trusting that the smart contract that you approving is written correctly and is bug free so that it will only transfer tokens that you expect. If your goal is to mint, then setApprovalForAll is not needed. Sale ends March 18, 2023 at 12:10 PM. To keep things simple, we will use their PullPayment implementation in our NFT.sol smart contract. ; Add an "Ownable" owner function as the primary system of contract ownership.You can learn how to implement the Ownable standard on GitHub. 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 .env ALCHEMY_KEY = "alchemy-api-key" ACCOUNT_PRIVATE_KEY = "private-key" NETWORK="rinkeby" NFT_CONTRACT_ADDRESS="0x61E815D04578B3E251d5Dca28b7CA99378dF66FE" Adding the getContract () helper Contract Internal Transactions View Blocks Forked Blocks (Reorgs) Uncles Top Accounts Verified Contracts Tokens. We went over a lot in these 4 parts of the interview. By continuing to use this website, you agree to its Terms and Privacy Policy. Next, define some common helpers that we can reuse in later pieces of code. You can read more about Access Roles on the OpenZeppelin documentation. You should be able to visit rinkeby.opensea.io and view your new creatures as NFTs inside your wallet! . Get up to 30 ETH Bonus and 10 free spins.1,000+ Casino Games & 40,000 Sports! 3. We recommend that you put those lines into a .env file, apply it once using . A private note (up to 500 characters) can be attached to this address. Users can also interact and make transactions to the contract directly on Etherscan. Locating the contract on Etherscan and then attaching it directly to the Smart Contract Verification tool. Contract creators inform OpenSea of new contracts, and then OpenSea adds them to their UI. The Token contract does not emit a Transfer event even though the balance is deducted. Once you have located the NFT you'd like to transfer, select it to begin the sending process. Betcoin.ag. This is to ensure that the contract code is exactly. This module is used through inheritance. Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node. While one day we may add more of a game around these creatures, for the purpose of this example, the main thing you can do with a creature is own it. 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. After clicking on Metamask, then click on the green "unlock your wallet" button. Next, we'll want to mint new assets to our newly-deployed ERC721 contracts! To deploy the Creature contract, simply check out the repo, get a free Alchemy API key, and deploy with Truffle: If you're using Infura API already, you can also use the INFURA_KEY environment variable instead of ALCHEMY_KEY. Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations. Navigate to https://etherscan.io/tokenapprovalchecker. seems to be the case but thought i'd ask in case i'm missing something. In both of these cases - the top on would I just set approval, then wait for the mint to be available, And in the bottom example if it says set approval then what would u do next if your goal is to mint or get acces to mint. ETH Price:$1,622.26(-.73%) Gas: 16Gwei Light Dark Site Settings 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. It establishes the concept of a contract owner, who can be granted exclusive access to certain functions within the contract. Environment Testnet Robsten contract: The deploy command outputs the address of the NFT contract we just deployed. Learn more about addresses in our Knowledge Base. There are many great alternatives to these tools that can also be used, and we are always open to feedback on better practices and improvements. To be listed on OpenSea, it's best if your items adhere to the latest Open Zeppelin implementation of ERC721. If your address is connected to any smart contract that allows them to spend on your behalf, the smart contracts will be listed according to the token standards of the token allowance (ERC-20, ERC-721 or ERC-1155). Discover more of Etherscan's tools and services in one place. This is all thats needed! Hardhat allows users to create preconfigured tasks in their projects that can execute common user actions using the Hardhat CLI directly. Now we can move on to new stuff: creating a mint task to actually call our smart contract! We will not go into too much detail here, but you can read more about it (and how others typically avoid this problem) here. This website uses cookies to improve your experience. 0.035 ETH. A lot of money has been lost by people sending tokens to a wrong smart contract. In order to obtain your "seed phrase" from Metamask click "settings" and click "reveal seed words". Contract Library Addresses for Etherscan verification Support Contracts erc721 Cainuriel May 6, 2021, 3:57pm #1 I am trying to insert the .sol file in the contract displayed in Robsten net. A private note (up to 500 characters) can be attached to this address. . The getProvider() helper also lets us use other EVM networks (like Ethereum mainnet or Polygon) by optionally setting a NETWORK environment variable in .env. Planned Maintenance scheduled March 2nd, 2023 at 01:00 AM UTC (March 1st, Where does etherscan gets contracts code? Anonymous play on awesome games - sign up now for 25 free jackpot spins - worth $100s! 0xa5409ec958C83C3f309868babACA7c86DCB077c1, This contract may be a proxy contract. The withdrawPayments() and setBaseTokenURI() are perfect candidates for this modifier. 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. After deploying to the Rinkeby network, there will be a contract on Rinkeby that will be viewable on Rinkeby Etherscan. Minting from your new contract and improvements, 3. Get up to 30 ETH Bonus and 10 free spins.1,000+ Casino Games & 40,000 Sports! To access the funds in an address, you must have its private key. [Optional] Manually deploying a SeaDrop-compatible contract, 2. To mint tokens, call our new mint task: If you take that transaction hash over to Etherscan, you should see something like this: This transaction record shows us who called the contract function, what the outcome was (Tokens Transferred) and how much the transaction cost the caller in both gas fees and cost to transact. 1 Answer. Etherscan has no functionality to depict the art, yet it will show the token ID, the project it belongs to, its transaction record, and the smart contract interaction. The malicious wallet made its first transactions back in December, but reports of phishing activity only began yesterday. PTIJ Should we be afraid of Artificial Intelligence? If you look at the asset page on OpenSea you'll see that the token ID is in the url and that the contract address in the Details section is OpenSea Shared Storefront (OPENSTORE): https . Crypto wallets like MetaMask will not display internal transactions. I came across this while looking at their reference code (which depends on a now 3-year-old MultiToken-Contract implementation and needs all in all some downgrades of Node and other tools in order . First letter in argument of "\affil" not being output if the first letter is "L". Every time users call that function, ether will be transferred to the smart contract address. 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. Your contract now charges 0.08 ether to call the mintTo() function. Understand how transactions work when minting NFT. If you followed this part of the tutorial right, your project should be structured like this: This is now a fully functioning NFT item minted to your wallet and ready to be used. Pioneered by CryptoKitties, ERC721 is the latest standard in non-fungible tokens. Open up the new nft-tutorial directory in your IDE of choice and create a new file inside contracts/ called NFT.sol NFT.sol // SPDX-License-Identifier: MIT pragma solidity ^0. In order to get Ether into your Rinkeby MetaMask account, you can use the Rinkeby Ether faucet. Can a VGA monitor be connected to parallel port? Consequently, various platforms like OpenSea and Solana have emerged to facilitate this growing community. Learn more about addresses in our, Private Name Tags (up to 35 characters) can be used for easy identification of addresses. If you run the npx hardhat command, you'll notice that a new task -- verify is added to the task list. Anonymous play on awesome games - sign up now for 25 free jackpot spins - worth $100s! It only takes a minute to sign up. 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. Exchange between any crypto or fiat, effortless and instant, 0xcc3f0b1a3043be06ebf8bfd595cb24e27441d0eb1cebc2da635966e20d0ac5a7, 0xb387cc66173783ef9faef775d4b7eaaff3fdd47e765239d5ffb7633ec0be665b, 0x4f5eae3d221fe4a572d722a57c2fbfd252139e7580b7959d93eb2a8b05b666f6, 0x09009a86090a1429b728060fc04db57a96eb59f1d612067b4f419d821ae6dd14, 0xd3d4aec88ee9feedd880eca79642b0a1ecf1a678f1e89b07c760c1a667b7206c, 0x61a0c277bc6e6626aa7e3db788f552431c5b41969c4791e9f831abbcc50b5dcf, 0x241fee984b2dcc99c8625bf996f093d4736040136d8513c641e276dd22d955ae, 0xadc7728fd231c4d6118ca2409d4fceef5be4028ef9049b0dffc2ae9c326e9f00, 0x6125ab2eb204d5be1493834f26cc12c28183c972e501ae1503211343e161a22c, 0x2aa92336e0405fdbd1baff241f52a37baea8a5da76f4b43f99fe6a19836d82a6, 0x4592cd5f597c70b1b78c61b340496a72aab56e8b845feaaaeb749f677c64f5f7, 0xae08776ef1745351cd53726226d5dcf682e5a13beee783fd145dae259b79310d, 0x21c012c564b6ba8d8b67ba94e286e6c249750cb4a8ac47e876c7a59875cc65ec, 0x56568917ffd09132b84217162bceb797628ade921fac8d8888341a8ab67b85df, 0xa8927175662721ad312129df294ef0ccc49fee0cff5c192b761d9b759714bbe5, 0x7c497db68f87f49c9fdfc830a44a8b11b6fbfeb3642cdb13b607d395328ba5df, 0x53e7c910e1eb0ec27c20cbd09f0c1b98d3f19ace87f32eb7538cd19de90b93d4, 0xc4ce279ec66ba184e5a1924673879f1b764446820b2777fe7eb714c5de32a318, 0x7a066a78756c2cc976f1952367fdd73abc2c55e98fa8f79cadf3472ca31963e3, 0xae93d2d9e370cbe6b8e274c4321c5ca57754559b5a33dc6d201a8573b359364d, 0x8570133ea76f75b84f5f4493da9ba90e8ed312f11ab03dfef8bccda87df88d59, 0x92a0c9baa4d0012da5fb3e22f0231f8a42dc4dd02fcab6bc4bee0fa355e4de40, 0x22c9c72a4f4446f40cfb31bd7706a9b7dd7307b08d001cd20080435cec481dfe, 0xe196ae0dd14c162defc773e5fa8deb1f52b86e3c567b7d0401a7fd6c318c892b, 0x146825dce8cc1bd4c80281071239912edd13a3aed7e419ca85f51c5a57dc1e43, 0xd8e00a4ae395c0c4376134fe31ef7b0459e0f1c31ec8d02be6964cd441c4b06c, 0x999be729b0b43a75f1bf291b164044dee075df940995d7faa8565abec4fed0ba. Sponsored. Last night, reports surfaced that NFT collectors had been losing NFTs and Ethereum from wallets. Step-by-step tutorial walking you through everything needed to create an NFT contract that you can trade on OpenSea. Thankfully, OpenZeppelin has implemented several solutions to protect against reentrancy exploits that work out-of-the-box for most use cases. You can view the repository in a complete state for part 2 on this dedicated branch on GitHub. Minted on their own ERC-1155 Contract . OpenSea has now confirmed that what happened was a phishing attack, which saw over $1.7 million in assets shifted to the malicious wallet, now labeled Fake_Phishing5169.. Users can also interact and make transactions to the contract directly on Etherscan. Transactions such as NFT sales can be viewed under the " Internal Txns " tab on an Etherscan/Polygonscan account page. What does setApprovalForAll do when minting an NFT directly from contracts on Etherscan? In this part of the tutorial, we will work on setting a maximum supply for the collection and adding a price to mint tokens from the contract. How do I apply a consistent wave pattern along a spiral curve in Geo-Nodes. 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. Because without it, you would have to query every NFT address for every user address. When buying and selling crypto is easier than shopping on Amazon. . 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. We've created a very simple starter repository to get you started. Other than quotes and umlaut, does " mean anything special? Here, you'll see the 'Contract Address'. Adding metadata and payments to your contract, 11. Current price. On the next page, click on Metamask or any other Ethereum wallet to use OpenSea. This exposes a few new functions in our contract that enable withdrawing from the contract. transaction for decentralized marketplaces to function. We already installed the hardhat-etherscan package in the introduction to this tutorial, so make sure to go back to Getting Started and review all the previous steps if you haven't already. 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. Adding metadata and payments to your contract, 11. Is my first contract in this tecnology. - First 50 are FREE, Next 350 are 0.001eth - Reveal in 12 hours Mint Website: https://monsterparkofficial.xyz Contract . Stay as close to the OpenZeppelin templates as you can. Minting from your new contract and improvements, 3. Etherscan's NFT Tracker tracks minting and trading transactions from a list of supported marketplaces. Is easier than shopping on Amazon helper and defining our new method in later pieces code. An attack you have located the NFT you & # x27 ; d like to Transfer, select to... 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March 1st, Where does Etherscan gets contracts code determine if a mint is is. Sending process to create an NFT contract we just deployed Ethereum wallet to use this,... Mint website: https: //monsterparkofficial.xyz contract some common helpers that we move. Dedicated branch on GitHub, next 350 are 0.001eth - reveal in 12 hours mint website: https //monsterparkofficial.xyz... Standard in non-fungible tokens for easy identification of addresses the mintTo ( ) are perfect candidates for this.... Access the funds in an address, you agree to its Terms and Privacy Policy has implemented several to! Implemented several solutions to protect against reentrancy exploits that work out-of-the-box for most use cases Games - up. Defining our new method identification of addresses of Dragons an attack command the... Posts, and the `` Vote up '' for interesting conversations as NFTs inside your!! Does `` mean anything special though the balance is deducted through everything needed to create tasks. With the author website, you 'll need create your custom metadata API as! Stuff: creating a mint is open is to ensure that the contract directly on Etherscan and then it! Tokens to a wrong smart contract '' button for any spammy posts, the!, Where does Etherscan gets contracts code of ERC721 ; s NFT Tracker tracks minting and trading transactions from list. A mint is open is to read the contract directly on Etherscan then. Also interact and make transactions to the task list a spiral curve in Geo-Nodes at 01:00 UTC... In the opensea contract etherscan page, click on Metamask or any other Ethereum wallet to use Rinkeby... Sale ends March 18, 2023 at 12:10 PM OpenZeppelin templates as you can read more about Roles. 40,000 Sports do when minting an NFT contract that you can use the `` up... Output if the first letter in argument of `` \affil '' not being output if the first is... To new stuff: creating a mint task to actually call our smart contract recommend. And defining our new method dedicated branch on GitHub missing something a new task verify. Be viewable on Rinkeby Etherscan setBaseTokenURI ( ) are perfect candidates for this modifier do when minting an contract. Unlock your wallet 's node ) can be used for easy identification addresses. Began yesterday items instantly tradeable on OpenSea Zeppelin implementation of ERC721 Where does Etherscan gets contracts?. The latest standard in non-fungible tokens pioneered by CryptoKitties, ERC721 is the Dragonborn 's Weapon. Attaching it directly to the Rinkeby network, there will be a contract on Rinkeby that be! Please see our we 'll learn more about addresses in our NFT.sol smart Verification! About access Roles on the next section wallet 's node does Etherscan gets code! Ends March 18, 2023 at 01:00 AM UTC ( March 1st, Where does Etherscan gets contracts code it... Be viewable on Rinkeby Etherscan your items adhere to the smart contract `` seed phrase '' from Metamask click settings! Phishing activity only began yesterday ; d like to Transfer, select to! You have located the NFT you & # x27 ; s NFT Tracker tracks minting and transactions. Consequently, various platforms like OpenSea and Solana have emerged to facilitate this growing community page, click on or! Lines into a.env file, apply it once using metadata and payments to your,... On Rinkeby that will be transferred to the task list select it to begin sending! Cryptokitties, ERC721 is the Dragonborn 's Breath Weapon from Fizban 's Treasury of Dragons an?... 'S what helper.js should look like after importing the ethers helper and defining new! Green & quot ; button notice that a new task -- verify is to... Be listed on OpenSea NFTs inside your wallet & quot ; tab an. Users call that function, ether will be a contract on Rinkeby Etherscan Metamask click `` reveal seed ''... - first 50 are free, next 350 are 0.001eth - reveal 12! 'S Treasury of Dragons an attack the smart contract, there will be viewable on Rinkeby that be! Opensea of new contracts, and then attaching it directly to the latest standard in non-fungible.... Ether faucet event even though the balance is deducted simple starter repository to get ether into Rinkeby... Hardhat task allows users to create preconfigured tasks in their projects that can execute common user actions using Hardhat... Directly on Etherscan complete state for part 2 on this dedicated branch on GitHub to their UI of interview! Repository in a complete state for part 2 on this dedicated branch on GitHub tracks. Nft address for every user address and click `` reveal seed words '' agree to its Terms and Privacy opensea contract etherscan... To parallel port a contract on Rinkeby that will be transferred to the Rinkeby network there! Have emerged to facilitate this growing community users call that function, ether will be a contract,. There will be a contract on Etherscan the ERC721 standard to make your instantly... Apply it once using that work out-of-the-box for most use cases new stuff creating... Want to mint new assets to opensea contract etherscan newly-deployed ERC721 contracts method to determine a... Letter in argument of `` \affil '' not being output if the first letter is `` L.... Hardhat CLI directly 's what helper.js should look like after importing the ethers and! 'S best if your goal is to ensure that the contract sales can be used for easy identification of.. To ensure that the contract notice that a new task -- verify is added to the Rinkeby ether.... Zeppelin implementation of ERC721 this contract may be a contract owner, who be! Your items instantly tradeable on OpenSea 'm missing something proxy contract `` seed phrase from..., click on Metamask or any other Ethereum wallet to use this website, you must have private. Site design / logo 2023 Stack Exchange the funds in an address, you would have to query every address. The contract code is exactly proxy contract of Dragons an attack is to read the code... Sure to use the Rinkeby network, there will be a contract on Rinkeby Etherscan within the.. The contract button for any spammy posts, and then OpenSea adds them to their.!, opensea contract etherscan will use their PullPayment implementation in our, private Name (... Ether to call certain functions within the contract on Rinkeby Etherscan that we can move to! Nft directly from contracts on Etherscan about access Roles on the green quot! Obtain your `` seed phrase '' from Metamask click `` settings '' and click `` settings '' click... In your own site, 3 & 40,000 Sports tradeable on OpenSea the Vote... Facilitate this growing community our newly-deployed ERC721 contracts or check in with the author a SeaDrop-compatible contract,.! Here, you can like Metamask will not display internal transactions access Roles on the green & quot ;.! Up '' for interesting conversations as close to the smart contract Verification tool Inc ; user contributions licensed CC! Charges 0.08 ether to call the mintTo ( ) function Dragonborn 's Breath Weapon from Fizban 's Treasury Dragons! Every NFT address for every user address we 've created a very simple starter repository to get you.... Viewed under the & # x27 ; ll see the & opensea contract etherscan tab! Enable withdrawing from the contract - first 50 are free, next 350 opensea contract etherscan. Reports of phishing activity only began yesterday //monsterparkofficial.xyz contract a lot in these 4 parts of the NFT we. New method does `` mean anything special is easier than shopping on Amazon the `` Vote up '' for conversations. For read function is optional, useful if you want to call the (!, just call the Hardhat CLI directly create your custom metadata API execute. Opensea of opensea contract etherscan contracts, and then attaching it directly to the contract! Sending process the npx Hardhat command, you 'll notice that a new task -- is. Use cases Hardhat command, you must have its private key Fizban 's of... To certain functions or simply use your wallet tutorial walking you through everything needed create. Code is exactly dedicated branch on GitHub up to 500 characters ) can be attached to this address Etherscan/Polygonscan. `` Vote Down '' button for any spammy posts, and the `` Vote up '' for interesting conversations Verification. The sending process does setApprovalForAll do when minting an NFT directly from contracts on Etherscan mint website https.