Questions tagged [nft]

Questions about NFTs, non-fungible tokens.

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I minted an NFT by mistake while in Rinkeby Test net on my wallet, the NFT sold for 1eth now it’s in my test wallet how do I recover this ETH?

This is the details of the transfer Buyer my1703 Transaction hash 0x5438b317f970448a040bba32b89c1e2c4ae306943764193a19d7e65739ae2283 You earned 1.007224 ETH Type of transaction Purchase Time sent Sun ...
1 vote
2 answers
3k views

Given an ETH wallet address - Fetch all ERC721 tokens currently owned

I would like to create an application that - given a specific wallet address - fetches and displays all NFTs/ERC721 tokens currently owned. How can this be accomplished? Are there any examples ...
1 vote
0 answers
60 views

NFTs uniqueness doubt

I am new to the world of NFTs and I find very hard to understand how the ethereum blockchain enforces their "uniqueness". As far as I know, smart contracts implementing the ERC721 interface ...
4 votes
3 answers
737 views

OpenSea to ERC 721 (NFTs)

I'm a mere mortal in the coding world (e.g. a complete noob). I'm an NFT artist that has an increasingly popular collection on OpenSea. The collections on OpenSea, however, uses a system called 'Lazy ...
2 votes
1 answer
78 views

Are there any NFT marketplaces that accept non-media or even arbitrary file formats?

I am curious as to whether there are NFT marketplaces that allow minting tokens for arbitrary file formats say pdfs, text files, etc .
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1 vote
1 answer
1k views

How to have the contract check if the msg.sender currently owns a specific token. (erc721)

Assuming I have a contract to mint my own NFTs: (I'm thinking ERC-721, but not necessarily). I want to create another smart contract that before doing anything, verifies that the address interacting ...
3 votes
1 answer
240 views

deploying a simple ERC721 contract: transaction could not be decoded: could not recover secp256k1 key: calculated Rx is larger than curve P

You can check out the code here: https://github.com/lopeselio/Chainlink-VH-DynamicNFT Command: truffle migrate --reset --network rinkeby -f 3 Then response is as follows: Compiling your contracts... =...
5 votes
0 answers
898 views

What is the difference between ERC-2665 and what is proposed in EIP-2981? Royalties vs Transfer Fee

There is an EIP for Royalty standards. But there is already a ERC for a Transfer Fee Could ERC-2665 be used to implement royalties across all market places for NFT? What is the difference between ...
0 votes
1 answer
2k views

On-chain vs Off-chain NFT art platforms

In this thread, an NFT cryptoart collector with deep pockets named beanie said, I have bought a few pieces on FND cause they were significantly cheaper, but now realize they were priced that way for ...
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2 votes
1 answer
531 views

Studying the cryptopunks code. Why are these three conditions required?

So I recently started learning some solidity and was looking at code to make nft series like the punks. I noticed that in their code there are always three conditions that appear to do the same thing. ...
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4 votes
5 answers
9k views

View all NFTs owned by specific Ethereum wallet

Python developer here, very interested in the ETH ecosystem. I would say I'm an experienced developer, but unaware of the many languages/tools that are available to interact with Ethereum wallets. Let'...
3 votes
1 answer
110 views

how do I know that NFT is from the right person

I understand the NFT (at least solidity part).. There's something that's bugging me though. Let's say someone made a super great cat(cat1), published it to ipfs, then called the ERC721 contract and ...
4 votes
1 answer
3k views

How do I limit the number of ERC721 NFTs per account?

I would like to restrict the number of NFTs any one address can own. How would you implement this in a Solidity smart contract? Say I have an ERC721 NFT contract, Square.sol: import "../...
1 vote
1 answer
812 views

How do I get the number of total NFTs issued by an address?

For example Ethereum Name Service (ENS): https://etherscan.io/token/0x57f1887a8bf19b14fc0df6fd9b2acc9af147ea85 I am looking for an API that returns the total number of NFTs created. I'm using ...
1 vote
0 answers
41 views

Transfer NFT if account lost

I'm a newbie in NFT, ETH and I have a question. Can I transfer NFT if the account was compromised? More precisely, I mean two situations for example: If I author of Digital Art and I sold it. I will ...
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2 votes
3 answers
691 views

NFT ERC 721 smart contracts

According to my understanding ERC721 smart contracts hold a list a "NFTs/owners" the same way ERC20 smart contracts hold a list of "owners/token balance". NFT are digital assets ...
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3 votes
1 answer
146 views

Can my friend sell an 'Eiffel Tower' with NFT

Suppose I know someone who has ownership over a landmark. Not quite the Eiffel Tower, but to ensure he remains anonymous we could say it is a similar asset. Perhaps simpler because it just sits there ...
  • 33
5 votes
2 answers
4k views

Get a list of all token types for ERC1155

How do I identify what token types have been created for a specific ERC1155? I noticed the balanceOf function takes an address (owner) and the token type, but what if I dont know what all token types ...
  • 342
2 votes
1 answer
141 views

How do I allow the current owner an NFT to append 8 bytes to the token?

How would I allow the current owner of an NFT to append a fixed number of metadata bytes to their token on chain. Is this something that can be done with ERC-1155 or ERC-721. Or is this a whole new ...
  • 21
2 votes
1 answer
734 views

ERC-721 price control

ERC-721 n00b here, Problem: I want to control the price of the cost of minting my token. I want the first 1-100 tokens to cost x and 101-200 tokens to cost y and so on. My understanding is that ERC-...
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1 vote
1 answer
501 views

Minting NFTs failed

I'm new to solidity and smart contract development. I'm using openzeppelin's ERC721 contract and trying to generate an NFT. I want to require 0.1ETH for the minting of the token. function mint() ...
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2 votes
0 answers
80 views

How to prevent NFT or Enjin Token copying?

So lets say someone mints an Enjin token pointing to a 3D model asset for a game. What prevents someone from downloading that same exact 3D model, and minting a new token that points to it? Are the ...
  • 121
5 votes
2 answers
397 views

How would an nft marketplace structure their smart contracts to pay out "creator shares"?

This may be a noob question, but does any know how a market like Nifty or any similar nft marketplace actually implement paying a "creator share" or royalty back to the original creator ...
2 votes
0 answers
118 views

Marketplace that only accepts first-party NFTs to be sold

There are two contracts: ERC721 NFT contract (enables minting, etc) Marketplace contract (has a sell function and buy function) When somebody calls the function to put a NFT for sale in the ...
1 vote
0 answers
37 views

How Ethereum NFT Protect Artist Work ( How NFT IMMUTABILITY works on BLOCKCHAIN)?

Hi Guys let discuss how NFT Immutable works on ethereum blockchain I'm new to nft, just created my first one with opensea:) as in image1. My question https://imgur.com/a/KX6TRgi Is my art piece on ...
1 vote
0 answers
25 views

Who knows what a token collection interface is?

I'm new to blockchain development. I'm reading a tutorial on developing an NFT platform and it talks about a token collection interface. Can anyone explain to me what this is. Let's say you have a ...
2 votes
2 answers
7k views

Why are gas fees taken for failed smart contract interactions?

When claiming an NFT (smart contract interaction), the gas fees would have been $50-$80, so I went to Advanced options in MetaMask, and turned down my willingness to pay for gas to around 25,000 units ...
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0 votes
1 answer
241 views

What happens to royalty payments if NFT artist loses wallet?

when NFTs are minted, the creator/artist is registered in the smart contract as a recipient of all future royalty payments from secondary sales of their NFT. People lose wallets all the time: ...
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1 vote
1 answer
83 views

Messaging application using NFT tech?

2 part question. What are some blockchain-based messaging apps? What are their benefits? Could an NFT based messaging app be built? If so what unique properties would it have?
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3 votes
0 answers
364 views

Possession vs Title vs Ownership in NFTs

Is there a way to separate possession from title in an NFT smart contract? I'm not sure these are the best terms, but here are some examples: Renting out NFTs, say for use in a game. The rental is ...
  • 156
1 vote
1 answer
1k views

Is it possible to unmint an NFT? as in, is the reversal of the tokenisation process feasible?

Recently an artist friend of mine got scammed on Rarible. The Scammers put up his original artwork for a reserve price after minting 22 copies of which 2 were sold. My friend came to know of this ...
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1 vote
0 answers
35 views

What gives Dapper Labs the right to "own" and sell the NBA top shots? [closed]

AFAIK, NFT ownership does not include any legal right. But in order to sell the ownership in the first place, you do have to "own" it, and that can be done only by a legal agreement, can't ...
1 vote
2 answers
257 views

Sell my own NFT?

On what platform can I sell my own NFT? I've seen NFT's kick-off recently. I have seen certain more exclusive platforms launch where large sales are being made, but have not seen one where anyone can ...
  • 183
1 vote
1 answer
984 views

Can NFTs be stolen from a web wallet? Is there cold storage for NFTs?

Many NFT collectors move their claimed NFTs (NFTs that they won) from their web wallet (e.g. Metamask) to a different wallet that they call a vault wallet. What is this vault wallet? Is it a hardware ...
  • 1,294
1 vote
1 answer
156 views

Zora doesn't allow NFT 1 of 1 editions? [closed]

Zora is decentralized marketplace for NFTs that doesn't take any fees from sales of NFTs, built on the Ethereum blockchain. Zora's help docs says Instead of creating artificial scarcity by selling ...
  • 1,294
1 vote
1 answer
443 views

Which Ethereum user bought Beeple's "Crossroad" NFT video for $6.6 million?

we know the story of who bought Beeple's "Crossroad" NFT video for $67,000 and re-sold it on the secondary market for $6.6M worth of ETH, but who exactly was the person, or Ethereum username,...
  • 1,294
1 vote
1 answer
362 views

How to tell if an NFT jpg is stored on a legitimate IPFS domain?

usually URLs of NFTs point to well-known IPFS servers like ipfs.io and some gateway that bridges from the web to IPFS, but what about cases where an NFT is pointed towards something like https://f8n-...
  • 1,294
3 votes
2 answers
2k views

Why do crypto art NFT platforms set their minting token's max supply so low?

The screenshot shows details about the crypto art platform SuperRare's non-native token "SUPR" for minting NFTs. I guess this is the token that creators mint their art too. But it says only ...
  • 1,294
0 votes
1 answer
1k views

Do NFT bids, and refunds from being outbid, have the same transaction/gas fees?

If I bid on crypto art to the tun of $50 in transaction/gas fees, can I expect the same amount of fees to incur if I am outbid on that item, and the NFT platform refunds me my bid? $50 fee there, and $...
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1 vote
0 answers
69 views

Pricing in ERC721 tokens [closed]

Can the price of an ERC721 token be handled in the contract itself? Maybe along a fixed curve or something. Can you point me to a simple implementation example of an ERC721 marketplace? Thank you
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3 votes
1 answer
8k views

How to extract the URL of a crypto art as it appears within the NFT? and technical details like ERC-token type?

The following piece of crypto art has a title, description, and additional details regarding file and image size, provided by the NFT platform (Makersplace) where the artist (Lumi) minted the NFT for ...
  • 1,294
4 votes
1 answer
862 views

If crypto art is stored off-chain, how does the collector have any control over their NFT's contents if the server where it is saved shuts down?

CryptoKitties essentially sells crypto art NFTs to collectors on the Ethereum blockchain. However, the pictures of the cryptokitties are stored on the company's server, since the NFT merely represents ...
  • 1,294
1 vote
1 answer
172 views

Is ownership of tokenized real assets through NFT upheld by law?

Let's say you've tokenized your house as a non-fungible token (NFT) on the Ethereum blockchain. if an NFT simply represents ownership of a tokenized asset, what actors or agencies currently will ...
  • 1,294
2 votes
2 answers
1k views

What tokenized assets can be stored on-chain?

Examples of digital assets that can be tokenized as NFTs are: crypto art (.jpg or .png file stored off-chain) game weapons or characters Examples of physical assets that can be tokenized as NFTs are:...
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4 votes
2 answers
8k views

Can we mint 5 gigabyte video NFTs?

What is the maximum size of NFTs on the Ethereum blockchain (ERC-721 or ERC-1155 tokens)? crypto art NFTs on the Ethereum blockchain already contain JPG/PNG files that are about 5 MB large, and ...
  • 1,294
1 vote
0 answers
785 views

NFT Token Ownership Transfer Initiation

I am developing a dapp/smart contract, where users will be able to sell/buy NFTs from each other (market). Users grant authority to the smart contract to sell any of their items on their behalf using ...
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0 votes
1 answer
1k views

Non-native tokens versus Native tokens

to me ERC-20 tokens are a sub-class of Ether, yet they are referred to as "non-native tokens". Why would they be called non-native? What would be native in the Ethereum sense then? Cardano-...
  • 1,294
2 votes
1 answer
956 views

Is there any way of creating ERC-1155 or ERC-721 tokens always earn transaction fees?

I have a rather interesting but challenging question. I want to create ERC-1155 and ERC-721 tokens that will be primarily traded using a Decentralized Exchange (DEX) implemented for a newly created ...
4 votes
3 answers
4k views

How to make a snapshot of ERC-721 (NFT) token holders

What is the best way to create a snapshot of ERC-721 token holders? Maybe there is a tool for this purpose? I need to take a snapshot of holders of tokens for this NFT contract - https://etherscan.io/...
2 votes
2 answers
822 views

Random distribution of large amount of NFT

I'm an beginner in solidity, and with a teamate we have a project for an NFT contract. I have a contract with 5000 NFT limite (cards, and 20 specific card form a familily, each family and cards are ...