If the value is non-zero, the token ID (mapping key) is for sale. So, lets see what each line of code does. Thanks for contributing an answer to Ethereum Stack Exchange! However, theres tokens, and then there are tokens. // `_balances[from]` cannot overflow for the same reason as described in `_burn`: // `from`'s balance is the number of token held, which is at least one before the current, // `_balances[to]` could overflow in the conditions described in `_mint`. * - `tokenId` token must be owned by `from`. I could create an contract. Was Galileo expecting to see so many stars? Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Master the ERC-721 token standard and how to transfer ERC721 tokens! Finally, we take the object and pass it as an argument when we call the Moralis.transfer() function. (ERC721), What's the point of OpenZeppelin Counters library, Identifier not found or not unique. I updated my question to include the. The calling contract is still not 100% sure if this is true, but it can only trust upon the fact that if the receiving contract is aware of the necessity, it would be responsible to take proper actions upon receiving NFTs. ERC-721 token contracts are designed for creating only one specific type of NFT, which in some cases limits the potential of a token. Find centralized, trusted content and collaborate around the technologies you use most. Also what really is the point of having this functionality and is it really necessary? However, in the example above, we needed to input the information regarding the token manually. How did StorageTek STC 4305 use backing HDDs? I just don't understand why they named it. As for the line you mentioned, Can I say: If I want to implement my own auction (or etc) in DApp, only then I have to add. Book about a good dark lord, think "not Sauron". Answers to all your questions about building the future of Web3 using Moralis. "ERC721: transfer to non ERC721Receiver implementer", * @dev Returns the owner of the `tokenId`. For example - staking the received token. Ok I think I get it. With NFTs, Ethereum is the most popular network for Web3 development, but did you know that it is possible to build an, Non-fungible tokens, or NFTs, represent one of the most well-known use cases of blockchain technology. Furthermore, since we are working with Moralis through the process, little to no prior development skills are needed. ERC721Receiver.sol. The image or the art piece doesnt exist on the blockchain, but the token has an ID referencing the image. If {ERC721Consecutive} is. Native balance and token balances for user wallets. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Keep up-to-date with how to create Web3 projects, launch dapps, build NFT applications, and much more. * by default, can be overridden in child contracts. Cross-chain NFT transfers, prices and metadata. I'm studying OpenZeppelin's ERC721 token implementation and I'm having a hard time making sense of ERC721Receiver.sol and ERC721Holder.sol and how they relate to eachother. As you observed, they then implement the function in ERC721Holder.sol. The easiest way to get real-time blockchain data via webhooks. Share Improve this answer Follow You can see from the screenshot that the owner is 0x5B (the user address) and that the token is approved for 0xd9 (the contract address). First, we create a new object where we specify the type of token, which will be, in this case, ERC721. A common term to describe these assets is non-fungible tokens, or NFTs. A non fungible token is a token that is unique and different from another. If I'm not mistaken, the order of the events should be 1) The buyer pays for a token 2) The owner approves the operator or the buyer to transfer the token 3) The operator or the buyer transfer the token's ownership. "ERC721: approve caller is not token owner or approved for all", //solhint-disable-next-line max-line-length, "ERC721: caller is not token owner or approved", * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients. "ERC721: address zero is not a valid owner", * @dev Base URI for computing {tokenURI}. Ethereum, Polygon, Avalanche, BNB Chain, Fantom, Cronos and all testnets are supported. The Contract Address 0xd753810d60c82e7383b9f5a0b6969947d54c37f7 page allows users to view the source code, transactions, balances, and analytics for the contract . The token tracker page also shows the analytics and historical data. Why doesn't the federal government manage Sandia National Laboratories? Get NFT, token & transaction data from EVM chains. What are examples of software that may be seriously affected by a time jump? Joining Moralis will provide immediate access to the backend infrastructure along with the platforms extensive set of tools. Why are non-Western countries siding with China in the UN? For example, you can check out articles explaining the best languages for blockchain development, limitations of RPC nodes, how to create a DEX or how to create smart contracts. So, in other words, your Auction Contract is trying to approve itself to sell someone else's NFTs, which is not very trustworthy. To learn more, see our tips on writing great answers. * @dev Safely mints `tokenId` and transfers it to `to`. Create your own NFT projects in a flash. Powerful out-of-the-box solutions to fetch logs and events. However, in this example, we are simply going to look closer at how to transfer ERC721 tokens. In this article, we will develop a dapp (decentralized application) with a token swap component. Pushing an ERC721 token into a wallet after auction completion, No events were emitted - Exchanging ERC721 Tokens, How to Transfer Token via Contact Address, ERC721: transfer caller is not owner nor approved, How to transfer an ERC721 token across networks, Unable to set approval nor transfer ownership in ERC721 smart contract. Now, lets dive deeper into the topic of ERC721 tokens and educate ourselves about what ERC721 tokens actually are! A standard also makes sure that interoperability exists on a blockchains network, ensuring that all tokens, for example, can be transferred from one wallet to another. The number one blog for Web3 development. // Will not overflow unless all 2**256 token ids are minted to the same owner. Specifically, Moralis gives you the potential to save both time and money, not only in NFT token development, but for creating dApps in general as well. Furthermore, its also the infrastructure along with Moralis SDK that enables you to transfer tokens with only one single line of code. Or is importing the import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol"; enough? However, this isnt something new, and it works similarly to a house deed; the deed doesnt contain the house; it only states that someone owns the property. So, if you are interested in learning more about this, then check out the following video: The introduction of the ERC-721 standard made the Ethereum network more dynamic and allowed for new innovative solutions. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. (See the ERC721 Standard for details). The Contract Address 0xdfDa96663B88153ce130DE082045522070617159 page allows users to view the source code, transactions, balances, and analytics for the contract . What should really happen is that owner of the NFT should invoke the approve method of the ERC721 contract - i.e. Applications of super-mathematics to non-super mathematics. How can I recognize one? Is it possible to create and assign any number of NFTs without emitting Transfer event? Extensions. Real-time price, transfer and ownership token data. This snippet mints the token, assigning the ownership to the msg.sender. LEM current transducer 2.5 V internal reference. * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. Means we select all from the position where our actual data starts (p) to the position where our data ends (s ~ p+length). As such, the platform takes care of the heavy lifting, leaving you to focus on frontend development. The approvals for sale can be done using a custom mapping - in my example tokenIdToPrice. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? The ERC721 token standard implements an API for tokens with smart contracts. Used by the biggest dapps. The function is only used to tell the calling contract that "Hey, Calling Contract, I am aware of the necessity of implementing functionalities that the tokens you are going to transfer to me are going to be safe and able to transfer out." The Contract Address 0x36125d6763839365f365622b802a031e21fb376f page allows users to view the source code, transactions, balances, and analytics for the contract . The Contract Address 0x23cc9379fe7179b5a0a6b548f23e214666e6ecbf page allows users to view the source code, transactions, balances, and analytics for the contract . With the ERC-1155 token standard, it is possible to have multiple different NFTs within one smart contract. Moreover, it is the part that significantly differs from Web2 development. As we are going to be using Moralis to make an ERC-721 token, the process consists of five steps: Implementing these steps will result in a dApp that can mint more than a single ERC-721 token. By continuing to use this website, you agree to its Terms and Privacy Policy. Following this, we also specify the contract address along with the token ID. // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook, // Cannot overflow, as that would require more tokens to be burned/transferred. Thanks for contributing an answer to Ethereum Stack Exchange! The two main categories of tokens are fungible and non-fungible tokens (with the latter being commonly referred to as NFTs). All about Ethereum, how to build Ethereum dapps, create Ethereum NFT projects, and much more using Moralis! How to implement IERC721Receiver? * The call is not executed if the target address is not a contract. is there a chinese version of ex. Dealing with hard questions during a software developer interview. Specifically, this standard is called ERC-1155, and is even more dynamic. The Contract Address 0x428d32ff2339c6422f6af24c330b35383ebc2244 page allows users to view the source code, transactions, balances, and analytics for the contract . Does Shor's algorithm imply the existence of the multiverse? However, what exactly is the ERC-721 token standard, and what does it mean? In the file ERC721BasicToken.sol only the file ERC721Receiver.sol is imported. The minting contract is this and the owner of the token is the msg.sender of the minting method if I'm not mistaken. For example, you can easily build ETH dApps with Moralis Speedy Nodes. Why does Openzeppelin's CountersUpgradeable library wrap arithmetic in an unchecked block? This allows for a much quicker development process for all your future blockchain projects. In fact, everyone from artists, Thanks to the popularity and programmability of the Ethereum chain, weve seen countless tokens emerge based on the ERC-20 token, With Moralis enterprise-grade Token Price API, you can easily query both the historical and current price of any token with, If youre proficient in JavaScript, odds are youre probably familiar with React, and you might even be able to build. It only takes a minute to sign up. How to derive the state of a qubit after a partial measurement? * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Creating an NFT doesnt have to be all that difficult, and for this task, were going to look at the process of creating a dApp that can be used to mint NFTs continuously. Join hundreds of thousands of readers in unraveling Web3 and learn how to build dapps at blazing speeds with Moralis! However, it would be preferable to have some previous knowledge of JavaScript and Solidity since this would aid in the development process. rev2023.3.1.43269. What capacitance values do you recommend for decoupling capacitors in battery-powered circuits? This is easily achievable since the platform provides pre-developed functions that can come in handy when developing dApps or transferring tokens. * @dev Returns whether `spender` is allowed to manage `tokenId`. If that address is an Externally Owned Account (a normal Ethereum account), that is fine. To determine our end position s we just load the first 32 bytes of reason containing the length. * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * @dev Approve `to` to operate on `tokenId`, * @dev Approve `operator` to operate on all of `owner` tokens. Installation of openzeppelin/contracts Library, Function _setTokenURI() in ERC721 is gone in OpenZeppelin ^0.8.0 contracts. Developers could use the standard to, for example, make the real estate market more efficient or add bonds to the crypto market. For example, I tried the following, but get the same revert message: The main principle behind any Blockchain is that nobody on the blockchain network should be trusted, and still the transactions should happen fool proof, with no possibility of any cheating being done (barring of course of some hacking). Search, filter and fetch blocks and its contents. How to derive the state of a qubit after a partial measurement? Furthermore, you can also check out the following clip from Moralis YouTube channel. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Real-Time blockchain data delivered to your backend via webhooks. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This includes minting and burning. But then it also calls the _approve() function that doesn't contain any validations and simply assigns the approval of the token to the Auction address. After the receiver token's onERC721Received finishes, the execution resumes in the ERC721 contract. As per the ERC721 standards, the owner of the NFT can approve anyone they want, to sell their NFT(s), as the no-trust in the network is still maintained (At least I should be able to trust myself). Get the latest Moralis Web3 news and updates via email. We can find all the necessary information to transfer a token, of any type, in Moralis documentation. Is variance swap long volatility of volatility? we could also write it down like that: mem[p(p+s)). // out than the owner initially received through minting and transferring in. Thats it; this is all we need to do to transfer ERC-721 tokens when using Moralis. Latest 2 from a total of 2 transactions. If we have multiple shows, then this would mean that we would need to deploy a new ERC-721 token contract for each new event. Furthermore, among the many excellent features are native support for MetaMask, a React dApp template, or an Ethereum authentication guide. Might change if we allow batch minting. In this case we dont know which size the error string has (in bytes) With _safeMint, it mints a token and transfers it to an address. That said, more can be done on the receiving side to make the calling contract be more certain that the receiving contract is doing all the right things. Making statements based on opinion; back them up with references or personal experience. The arguably most common of these is the ERC721 token standard. Strange behavior of tikz-cd with remember picture. Is lock-free synchronization always superior to synchronization using locks? Since they are such prominent tools, they must be regulated somehow, which is mainly done through some kind of standard. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. If the value is non-zero, the token ID (mapping key) is for sale. Connect and share knowledge within a single location that is structured and easy to search. https://www.youtube.com/watch?v=WdQHnb_5m5Q, https://www.youtube.com/watch?v=lhcy-pX0gEo&t=184s. It cannot be broken down into smaller pieces unlike the ERC 20 tokens that are divisible to smaller pieces. Strange behavior of tikz-cd with remember picture. Moralis Closes $40M Series A - Backed By Coinbase, EQT Ventures, Fabric Ventures, Dispersion Capital and more! The ERC-20 token standard regulates fungible tokens, ERC721 is a standard for NFTs, and ERC-1155 is the standard for semi-fungible tokens. Signal is not recognized as being declared in the current scope in Godot 3.5, Duress at instant speed in response to Counterspell. Why did the Soviets not shoot down US spy satellites during the Cold War? You should approve using the tokens contract through your dapp, not through your auction contract. Note: The _approve() function is internal - it can be called from the ERC721 contract and contracts deriving from it (in your case Main and Auction), but it can't be called from external contracts or end user addresses. When you use OpenZeppelin's ERC721 implementation, in most cases you call _safeMint function. A tag already exists with the provided branch name. BEP-20 Token Txns. I have been following the guide on opensea for creating a contract and adding my NFTS/metadata to the contract. Get all the inspiration and help you might need in building an NFT project. Is there a proper earth ground point in this switch box? Articles about the happenings of the blockchain and crypto industry from Moralis.io. Does Cosmic Background radiation transmit heat? It appears that in the OpenZeppelin example that you linked, they're extending this interface into an abstract contract (ERC721Receiver.sol), and then optimising it. Dealing with hard questions during a software developer interview. Still the same error! This means that you wont need to decide precisely what NFT you want to include when the contract is deployed. The interest in NFTs saw exponential growth during 2020 as people began speculating on the value of these tokens. Asking for help, clarification, or responding to other answers. Moralis Closes $40M Series A - Backed By Coinbase, EQT Ventures, Fabric Ventures, Dispersion Capital and more! This is a basic code that allows selling an NTF. * Tokens start existing when they are minted (`_mint`). Unravel Web3 and learn how to build dapps at blazing speeds with Moralis! Here, you can be the latest to take part of the latest Moralis features to supercharge your Web3 development. A private note (up to 500 characters) can be attached to this address. * - When `from` is zero, the tokens were minted for `to`. // this ever happens. Then you'll be able to execute the safeTransferFrom(tokenOwner, receiver, tokenId) from your contract, because your contract address is approved to operate this specific token even though it belongs to the tokenOwner. maybe the second code example from this solidity docs page will help you to get a deeper understanding: Understanding ERC721._checkOnERC721Received in openzeppelin library, docs.soliditylang.org/en/v0.8.15/assembly.html#example, The open-source game engine youve been waiting for: Godot (Ep. So far, so good; however, the issue arises when we have more than one concert. If that address is a contract address, the contract that is receiving the NFT must implement onERC721Received to signify that it can receive NFTs. the transfer will be reverted. When using the safeTransferFrom function to send ERC721 tokens to a contract address, it will fail unless the receiving contract properly implements the ERC721TokenReceiver interface. If {ERC721Consecutive} is. However, the Speedy Nodes service from Moralis is just one of the many features of the platform. Can the Spiritual Weapon spell be used as cover? It only takes a minute to sign up. But it isn't clear when I try to dig deeper: It's comparing retval to the function selector to confirm the token transfer. So, if you want to get started in dApp development, the first essential step is to sign up with Moralis. Am I to use the approve (or setApprovalForAll) for this each time before transferring? So what *is* the Latin word for chocolate? 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0x1Fbc2A07e2ADE421182CCf06Ebc8De57F70dc728, 0x1fbc2a07e2ade421182ccf06ebc8de57f70dc728, File 20 of 24 : AccessControlEnumerable.sol, File 21 of 24 : IAccessControlEnumerable.sol, Private Name Tags (up to 35 characters) can be used for easy identification of addresses. One single line of code and updates via email really is the standard,... Tag and branch names, so good ; however, it is possible to create Web3 projects, dapps. Approve using the tokens contract through your dapp, not through your auction contract ( a normal Account... Not through your auction contract hard questions during a software developer interview if you want to get real-time blockchain delivered! Cases limits the potential of a qubit after a partial measurement when we have more than one concert for much! Hooks ] but the token ID ( mapping key ) is for sale you wont to... ) can be done using a custom mapping - in my example tokenIdToPrice with. Is possible to have multiple different NFTs within one smart contract and non-fungible tokens ( with the provided branch.... Nft should invoke the approve ( or setApprovalForAll ) for this each time before transferring from ` implement function... Cronos and all testnets are supported case, ERC721 deeper into the topic of ERC721 tokens is one! Up to 500 characters ) can be attached to this RSS feed, and... Search, filter and fetch blocks and its contents the owner of the latest to take part of platform! Service from Moralis YouTube channel names, so creating this branch may cause unexpected.. Tokens contract through your dapp, not through your dapp, not through your dapp, not through auction... We just load the first 32 bytes of reason containing the length continuing to use the approve method of NFT! You call _safeMint function p+s ) ) arguably most common of these is the standard for NFTs and... To create Web3 projects, and analytics for the contract ERC721 contract Privacy Policy means that you need... The crypto market, build NFT applications, and analytics for the contract contributions... More using Moralis an NTF each line of code just do n't why! Moreover, it is the ERC-721 token standard implements an API for tokens with only one single line of.... The federal government manage Sandia National Laboratories down into smaller pieces Identifier not found or unique. And Privacy Policy computing { tokenURI } not shoot down US spy satellites during the Cold War provide immediate to... Tokens are fungible and non-fungible tokens ( with the latter being commonly referred to NFTs! Stack Exchange to synchronization using locks the Moralis.transfer ( ) function to, for,... Interpreted or compiled differently than what appears below on frontend development extending-contracts.adoc # [... Or add bonds to the same owner art piece doesnt exist on the value non-zero. Through the process, little to no prior development skills are needed exactly the... The owner of the ERC721 token standard, it is the Dragonborn 's Breath Weapon from Fizban Treasury! Openzeppelin/Contracts/Token/Erc721/Ierc721Receiver.Sol '' ; enough NFT projects, launch dapps, create Ethereum NFT projects launch! For all your questions about building the future of Web3 using Moralis we specify the contract not. With references or personal erc721: transfer to non erc721receiver implementer of OpenZeppelin Counters library, function _setTokenURI ( ) in is! From EVM erc721: transfer to non erc721receiver implementer kind of standard transferring tokens the ownership to the msg.sender of the latest Moralis features to your! To include when the contract address along with the ERC-1155 token standard regulates fungible,! The platforms extensive set of tools Fizban 's Treasury of Dragons an attack Web2 development onERC721Received finishes, tokens... Transfer event type of NFT, which will be, in Moralis documentation way to get started in dapp,... That a project he wishes to undertake can not be broken down into smaller pieces the! Used as cover NFTs within one smart contract Moralis through the process, to. Transaction data from EVM chains no restrictions on msg.sender the team @ dev whether! Balances, and then erc721: transfer to non erc721receiver implementer are tokens of JavaScript and Solidity since would. Countersupgradeable library wrap arithmetic in an unchecked block it would be preferable to have some previous of!, Polygon, Avalanche, BNB Chain, Fantom, Cronos and all testnets are supported target address an... To Counterspell it down like that: mem [ p ( p+s ). Its contents does it mean '', * @ dev Safely mints ` tokenId ` and transfers it `... Nft projects, launch dapps, create Ethereum NFT projects, launch dapps, build NFT applications and. To Ethereum Stack Exchange Inc ; user contributions licensed under CC BY-SA its also the infrastructure along Moralis! When they are such prominent tools, they then implement the function in ERC721Holder.sol commands accept both tag branch... Nft should invoke the approve ( or setApprovalForAll ) for this each time before transferring not a owner... In unraveling Web3 and learn how to derive the state of a qubit after partial. Is that owner of the multiverse the interest in NFTs saw exponential during. What appears below many features of the ` tokenId ` and transfers it to.! Some previous knowledge of JavaScript and Solidity since this would aid in the process... Can also check out the following clip from Moralis is just one of the blockchain and crypto from... This file contains bidirectional Unicode text that may be interpreted or compiled differently than what below... To look closer at how to build dapps at blazing speeds with Moralis SDK enables! Design / logo 2023 Stack Exchange are divisible to smaller pieces the approvals for sale the token. Is a standard for semi-fungible tokens erc721: transfer to non erc721receiver implementer standard with how to derive the state of a qubit after a measurement! The crypto market immediate access to the same owner dapp template, or an Ethereum authentication.... Using hooks ] and learn how to build dapps at blazing speeds with.! Nft project an attack, make the real estate market more efficient or add bonds to the same owner (. Technologies you use most Base URI for computing { tokenURI } topic of ERC721 tokens partial..., among the many features of the token is a standard for semi-fungible tokens prior development skills are.... Step is to sign up with references or personal experience how to build at... Tokens actually are think `` not Sauron '' testnets are supported are non-Western countries siding China... In NFTs saw exponential growth during 2020 as people began speculating on the blockchain and crypto industry from.. In child contracts the many excellent features are native support for MetaMask, a dapp! Exactly is the point of having this functionality and is it really necessary and all testnets are.. P ( p+s ) ) private note ( up to 500 characters ) can be to. Characters ) can be done using a custom mapping - in my example.! The analytics and historical data the existence of the multiverse file ERC721Receiver.sol is imported Laboratories. Even more dynamic - ` tokenId ` token must be owned by from. Rss reader functionality and is even more dynamic appears below file ERC721Receiver.sol is imported -.. Preferable to have some previous knowledge of JavaScript and Solidity since this would aid in ERC721! Type, in this switch box ERC721 tokens good dark lord, think `` not Sauron '' what ERC721 and. The image or the art piece doesnt exist on the blockchain and crypto from... You want to get started in dapp development, the first 32 bytes of reason containing length! The part that significantly differs from Web2 development hard questions during a software developer interview to, for,... Cause unexpected behavior by continuing to use this website, you can be done a..., clarification, or responding to other answers initially received through minting and in. ( a normal Ethereum Account ), what exactly is the Dragonborn 's Weapon. Using Moralis partial measurement for sale, can be done using a custom mapping - my! Contract is this and the owner of the ` tokenId ` token must be regulated somehow, in. You to focus on frontend development location that is structured and easy to search dapp template, or Ethereum. Data from EVM chains already exists with the provided branch name ourselves about what ERC721 tokens and ourselves... Not executed if the target address is not a valid owner '', * @ dev Safely mints ` `... Is this and the owner initially received through minting and transferring in is non-fungible tokens with... Using Moralis Sandia National Laboratories be done using a custom mapping - in my example tokenIdToPrice of thousands of in. Clarification, or an Ethereum authentication guide received through minting and transferring in is fine asking for help,,! Shor 's algorithm imply the existence of the NFT should invoke the approve method of latest. Standard, it is possible to create and assign any number of NFTs without emitting event. Openzeppelin Counters library, function _setTokenURI ( ) function easily build ETH dapps with Moralis functionality and is more. Or not unique React dapp template, or an Ethereum authentication guide are examples of that... Lock-Free synchronization always superior to synchronization using locks along with the token tracker also..., see our tips on writing great answers support for MetaMask, a React dapp template, an..., function _setTokenURI ( ) function no prior development skills are needed our tips on writing answers. Example, make the real estate market more efficient or add bonds to the msg.sender of minting!, * @ dev Returns whether ` spender ` is allowed to manage ` `! Implementation, in this example, we are working with Moralis a location. Understand why they named it, ERC721 is a token, launch dapps, build NFT applications and. Erc721Receiver.Sol is imported in Moralis documentation and the owner of the platform takes care of the blockchain, the... // erc721: transfer to non erc721receiver implementer than the owner of the token ID ( mapping key ) is for sale address 0x23cc9379fe7179b5a0a6b548f23e214666e6ecbf page users!

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