Tags:[[NFT Standards]] [[draft]] [[Metadata new version]] [[Storing the data]]
Defines mechanism by which clients (dapps) may verify that the token metadata has been delivered without unexpected manipulation.
Has two functions:
Which defines how to add tokenURIIntegrity to metadata which is then added to Schema
## Solving problem
URLs (Uniform Resource Locators) provides no guarantees of storing metadata. This standard is providing access to assets on-chain.
## Standards that allows attaching metadata to specific tokens using URI:
- [[ERC721]] metadata extension (`ERC721Metadata`)
- [[ERC1155]] metadata extension (`ERC1155Metadata_URI`)
- [[EIP1046 Metadata extension]] (DRAFT) ERC-20 Metadata Extension
# [[further reading]]
Full implementation: https://eips.ethereum.org/EIPS/eip-2477