On Chain Metadata Manifold Creator Studio

Gm fam, my doubt goes about the metada of a nft minting from the app manifold creator. i have developed a contract under the ERC-1155 standard which is already published in the mainnet, in the contract i have a nft minted in the ETH mainnet.
I would like to know how can I find out if the nft metadata is decentralized, and if there is any way to update it so it can be in the chain, the metadata was uploaded from the manifold arweave app but when I see the nft information from the browser it says that the metadata is centralized.
here is the link to the contract in etherscan and the link to the nft in opensea