Intro:
Hey there Frens!
So you just minted yourself a cool NFT. Well, Congrats!
But wait. What if your NFT is minted on a chain, not supported (yet) by opensea!
Say Sepolia (An ethereum Testnet)?
I feel you. it’s a real pain not being able to view/validate that awesome NFT aka non-fungible-token on Opensea!
Hence, today, we’re going to learn how to validate your NFTs minted on Sepolia testnet (currently not supported by Opensea).
Validation URL (Opensea):
We’re going to use an amazing open source and free-to-use validation tool built by Opensea for validating our NFT!
Sample URL for NFT Validation using opensea tool :-
https://testnets-api.opensea.io/asset/sepolia/[nft-contract-address]/[nft-token-id]/validate
Requirements:
We would just need a couple of things to validate!
The NFT contract address (we can find this on Etherscan / Sepolia-Scan etc.) & of course the token id for the NFT itself!
For this tutorial, I’m going to use the Foundry Course NFT & a sample NFT token-id.
NFT Contract Address (e.g. Foundry Course NFT) 0x76B50696B8EFFCA6Ee6Da7F6471110F334536321
NFT Token Id e.g. 1001
Note:
Foundry Course NFT are these awesome NFTs you mint if you complete modules in the Foundry Solidity Course by Patrick Collins (@PatrickAlphaC). Do check out below link!
https://www.youtube.com/playlist?list=PL2-Nvp2Kn0FPH2xU3IbKrrkae-VVXs1vk
Steps:
Input the contract address and token id in the Opensea Validation URL, as below.
testnets-api.opensea.io/asset/sepolia/0x76B50696B8EFFCA6Ee6Da7F6471110F334536321/1001/validate
There should be NO errors in the validation output, the token_uri associated with the NFT would be shown as in the image below.
NFT METADATA:
To view NFT Metadata, simply copy the complete token_uri & paste in a new tab.
The NFT Metadata is shown below, as a JSON with key-value attributes.
We can see all our NFT attributes such as name, image, any description etc. Awesome!
View the actual NFT Image!
Great! Now we saw the Metadata associated with our unique NFT.
How about viewing the actual image associated with our NFT directly, without needing opensea or any other marketplace?
Let’s look at this now!
Select the value for the image attribute (starting with Qm) from the NFT metadata & paste this in a new tab to view the image (remember to add ipfs.io/ipfs like below).
https://ipfs.io/ipfs/[paste CID value starting with Qm]
for e.g.
https://ipfs.io/ipfs/QmUCK8YsB7Ln5u4Sn6WdsgtD87eEv5fCy1VaG8waMxXq6Q
Above image is the actual image the NFT with token id 1001 is associated to !
Woah! This has been an amazing learning, is it not.
This should be one of (many) such contributions to the awesome web3 community!
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Notice:
The ETH logo and Opensea logo are registered trademarks. All rights reserved.
Tags:
#web3, #nft, #blockchain, #opensea, #ethereum, #non-fungible-token, #erc721, #erc1155, #sepolia, #verify-nft, #validate-nft, #web3community, #ipfs, #Foundry-Course-NFT, #Solidity, #metadata, #nft-metadata
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