Questions tagged [nft]

Also known as non-fungible tokens (NFTs): units of data that certify a digital asset to be unique (non-interchangeable).

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23 views

Feasibility of having multiple persistent UTXOs at a script address

I'm attempting to construct a contract which maintains the state associated with a given NFT. I would like this to be done on-chain as there are ways for the user to attempt to save invalid (...
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1answer
38 views

Difference betwen collectibles items and Assets in Nami Wallet?

I had been forging some NFTs, but all my NFTs are listed in the Collectible Part of the Nami Wallet. Even when i followed the 721 standard reported in the CIP-25 for my on-chain metadata. This makes ...
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30 views

What is the difference between "on-chain-metadata" and "metadata" in the Blockfrost Endpoint

I am fetching my assets using the Blockfrost endpoint for a specific asset: https://docs.blockfrost.io/#tag/Cardano-Assets/paths/~1assets~1{asset}/get But there are two metadata entries, one for "...
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How to mint a NFT with a policy of Multiple key-hash with Nami Wallet and Cardano Serialization Lib

I am building a daap and i want the user to be able to mint their app-tokens but the policy of the token must include the signature of the app wallet as well, for this I did the policy with the ...
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how can i show my minted NFT images on cardano testnet

this my minted nft address https://testnet.cardanoscan.io/transaction/38415ba47ba757b5ccb7240962fc064be56850b19f820e9a837aeed6e56e8081?tab=utxo Now i wants to show these minted NFT Images to any ...
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2answers
112 views

NFT royalties Cardano

I am attempting to create a NFT with % royalties when NFT is re-sold. My idea would be the following : The symbolic owner of the NFT is defined in the datum of the script e.g. datum = { owner : [...
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1answer
38 views

How to retrieve the datum added with the option –tx-out-datum-embed-file from the tx witness data

I have been thinking recently about the way we are predominately creating NFTs on Cardano, right now the trend is to add the NFT attributes to the transaction metadata, however, I think this is not ...
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41 views

How to create a project of many NFTs in one shot?

I have a collection of pictures, which I would like to list as NFTs on a popular NFT marketplace. I followed the official tutorial on Cardano developers website, however, the example shows the ...
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38 views

Is It possible to stake an nft on chain

Is there a way I can use smart contracts to stake nfts and back them with ada tokens. Similar to staking ada except also holding the nft in like a gallery or something.
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2answers
51 views

How Do I include MP3/Mp4s into my smart contract?

How Do I include MP3/Mp4 capabilities in my smart contract? Im interested in minting songs and short videos as CNFTs but I do not see any information online what so ever about how this can be done. ...
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1answer
29 views

How to interpret asset transactions data for a NFT?

Using the blockfrost API I quired the transaction history of a NFT using the following script: from blockfrost import BlockFrostApi, ApiError, ApiUrls api = BlockFrostApi( project_id='...
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1answer
161 views

Smart Contract NFT minting with Rarities

I'm trying to work out how an NFT collection might be sold on Cardano in the future, specifically by making use of smart contracts. Let's say that I am creating a 10k pfp collection or something of ...
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1answer
101 views

How to mint multiple NFT assets in the same transaction?

The developer guide doesn't cover this. Here is an example of what I'm trying to do: https://cardanoscan.io/transaction/e1c7bc707e56bf37b4325dc4b7fe524eafe8ca746e54746d60b321588ffebb6c?tab=tokenmint I ...
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2answers
42 views

Error: Reference to a name which is not a local, a builtin, or an external INLINABLE function

I am writing a minting policy that takes half the bytes of one of the eUTXOs being used during mint and encoded them as a base89 readable string then checks that the Asset being minted has as a ...
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29 views

Does Cardano support Dynamic CNFTs?

Can we use offchain data through something like ChainLink and channel it to CNFTs to have them change in real time accordingly? Have got a great idea for a dynamic NFT project, but just want to know ...
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1answer
43 views

How would one go about Gating content through ownership of an NFT?

The question is the title, I want to gate access to a URL based on the presence of a specific token in their wallet. I assume this would be done through a wallet browser plugin? I've heard that this ...
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1answer
57 views

Is really any token metadata stored on chain? Or is it the mint TX metadata?

I am aware that offchain metadata is stored using the registration as Cardano Developers portal dictates, my concern is about on-chain metadata. Is really any NFT-metadata stored on-chain? Like ...
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1answer
64 views

Are there any APIs for Cardano NFT ticker?

I am very new to Cardano NFT. I am trying to find an API to get the Cardano NFT live ticker. Please help me.
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81 views

How to search for an NFT asset name?

Let's say, I have created an asset with name 'xyz' and I want to search for all the nfts with this asset name on the chain. How and where do I do that ?
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2answers
160 views

How to verify a user owns an NFT?

Let's say I have the asset string representing an NFT. How can I verify that a user signed in with Nami wallet owns that NFT? Is there some sort of signature they can provide?
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1answer
62 views

How do I mint an NFT without any image and and just some text?

I have made a script here to mint NFT as per the official docs. : https://github.com/nateshmbhat/cardano-nft-minter But there is no mention in the doc to mint an nft with just some text description ...
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1answer
76 views

I have a smart contract in Ethereum. Is there a way to migrate it over to Cardano?

I have a smart contract for an NFT in Ethereum and I'd like to put it in the Cardano eco system as well. How can I do that? Is there any 'smart contract bridge' through which I can port it over?
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How can you listen to all incoming transactions of a wallet address?

For a web app, I'm wondering is there an API/SDK that enables you to execute some code every time an address receives ADA, NFT, or native token? The wallet address receiving does not change. If not, ...
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1answer
151 views

How to create a programmable NFT?

Is it possible to create a gif or video NFT? For example, every time the user clicks on the image, an animation plays once or on repeat over the image. I do not see any guides on this and would ...
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3answers
251 views

Cardano-cli error when submitting transaction

I am following the cardano developers tutorial to create NFT using Cardano-cli At the end, when submitting the transaction I get the following error : Command failed: transaction submit Error: Error ...
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56 views

Cardan Hobby Project - Concept question

As hobby, I am trying to build a small website (using cardano db and nextjs) that would work as described : The website displays on its front page a "message" . The "message" is ...
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1answer
125 views

Must spend UTxO constraint when minting NFT

I'm currently going through week 5 of the plutus piooner lectures, and I have some questions about the NFT process. Here is a reference with the complete code, but here are the important parts: The on-...
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1answer
100 views

Should I use Marlowe or Plutus to create my native token?

Should I use Marlowe or Plutus to create my token? I also want to create a TCG in which my token will have an utility. Where should i start? (tutorial, how-to, examples ...).
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112 views

Having a problem with Minting with Cardanocli-js

Im creating a transaction using this code: const tx = { txIn: wallet.balance().utxo, txOut: [ { address: wallet.paymentAddr, value: { ...wallet.balance().value, [MARCELOCOIN]: 1 }, } ], ...
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1answer
93 views

ADA locked with assets

Can you send just NFTs and the transaction fee or do you always need to send ADA in a transaction. Also is there a way to unlink the ADA and Asset in the receiver wallet?
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272 views

Minting NFT automatically based on transaction

I wish to write a script that will automatically mint NFTs given payment to an address. Firstly, I haven't found anyone that has shown how to do this, but if anyone has, or is willing to share, please ...
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1answer
107 views

Can a smart contract read the presence of an NFT in the redeemers wallet?

I want to use an NFT as a form of authentication for a Plutus contract. I know I can attach the NFT in the Datum when constructing the transaction and return the NFT in the output however I am worried ...
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2answers
62 views

How does eUTXO model makes it possible to mint NFTs without smart contracts?

I am watching a video by Coin Bureau and he mentioned that Cardano's eUTXO model makes it possible to mint NFTs without smart contracts. Unfortunately he does not fully explain how so. Any one care to ...
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1answer
156 views

What is the recommended way of implementing an NFT sale?

I'm pretty new to crypto development (I've been a professional software engineer for 5+ years now) and would like to get into NFT development using Cardano. Currently, I'd like to start a collab with ...
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1answer
40 views

Calculate a policy locking

How can I calculate when the policy is going to be locked? I have the policy script file and I need to specify the before slot but I don't know how to calculate it. For example, I want the policy to ...
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1answer
60 views

Getting the address of a parameterized contract from within the validator of another script

Suppose I have one contract, Contract 1, that is parameterized by type Contract1Params{ tokenName :: BuiltinByteString } and I have a minting policy that will only mint a token with tokenName tn ...
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1answer
203 views

Is there a good tutorial to mint Cardano NFT using plutus script?

I used to mint Cardano NFT using "Time locking" following this guide https://developers.cardano.org/docs/native-tokens/minting-nfts/. But I know the more formal way is to use plutus script ...
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2answers
225 views

Minting NFTs via cardano-cli: How to mint several NFTs consecutively?

I followed the NFT minting docs on https://developers.cardano.org/docs/native-tokens/minting-nfts which works very well for the first transaction. I'm currently stuck trying to mint a second NFT. It's ...
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796 views

Minting a NFT (collection) with Blockfrost

I see al lot of NFT projects where you can buy 1 or multiple NFT's for a certain price. Like unsigned_algorithms, CardanoTrees etc. I am curious how these projects are created without the use of smart ...
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1answer
135 views

How can I mint a token without a name for NFT royalties?

The proposal for Cardano NFT royalties CIP-0027 suggests that a nameless token should be used to store the royalties information. Usually a mint transaction looks something like this: cardano-cli ...
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30 views

Cardano marketplace that allows selling a batch of NFTs

anyone aware of a cardano marketplace that allows us to mint NFTs in batches that will launch with smart contracts launch or at least close to the launch? So e.g. 1 policy ID, 10000 asset names that ...
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835 views

Creating Cardano Non-Fungible Tokens with royalties for newbies

I've been looking around since last week and I need directions to create my own non-fungible tokens with royalties. Do I need to learn how to create a smart contract for this myself? or are there ...
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37 views

what is happening behind the scenes when you buy a cardano nft, from a privte website

I m starting to get into coding, and I did not manage to find an answer to this question. When you buy an nft you are asked to send an X amount of ada to a wallet, and then few min after the website ...
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3answers
124 views

Can you the number of NFT's that can be minted in a transaction?

I wanted to understand if you could place a hard limit on the number of tokens minted under a policy. I've scanned the docs and the policy.script only seems to control permission and the amount of ...
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1answer
34 views

Can Token Registry be used for NFTs? Can I self-host a Token Registry?

I just learned about the token registry by way of the NFT docs. A few newbish questions: It looks like the Token Registry is currently centralized, and I need to make PRs against github to add my own ...
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2answers
139 views

How to get all NFTs of a wallet address?

I'm trying to retrieve all assets which are located at the specific wallet address, I queried through the docs but couldn't find anything suitable. Can anybody provide me some help regarding this ...
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1answer
205 views

What is the minting cost of an NFT?

What is the minting cost of an NFT? If it depends on some factors, can they be made explicit?
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2answers
111 views

What is the cost (in ADA) of transferring ownership of NFTs?

I have a project underway using private Eth network (zero tx costs) where NFTs transfer ownership very frequently between various owners. I wish to move to Cardano for its completeness and security ...
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2answers
174 views

Problem with creation of wallet using Javascript

Im using linux-Ubuntu in the WSL of the Windows 10. I have installed Cardano-node and Cardano-cli. Node v14 (latest stable version) ghc 8.10.6 Im trying to create a wallet but on this command: node ...
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1answer
51 views

Would anyone respond / share who is working in the real estate space with Cardano?

Who is working within real estate on blockchain, and especially within ADA/Cardano?