Interface: NonFungibleTokenMetadata
General structure of Non-Fungible Token Metadata (in camelCase) as per official NEP-177 standard (https://github.com/near/NEPs/blob/master/neps/nep-0177.md).
Properties
copies
Optional copies: number
number of copies of this set of metadata in existence when token was minted.
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description
Optional description: string
free-form description
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expiresAt
Optional expiresAt: number
When token expires, Unix epoch in milliseconds
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extra
Optional extra: string
anything extra the NFT wants to store on-chain. Can be stringified JSON.
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issuedAt
Optional issuedAt: number
When token was issued or minted, Unix epoch in milliseconds
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media
Optional media: string
URL to associated media, preferably to decentralized, content-addressed storage
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mediaHash
Optional mediaHash: string
Base64-encoded sha256 hash of content referenced by the media field. Required if media is included.
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reference
Optional reference: string
URL to an off-chain JSON file with more info.
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referenceHash
Optional referenceHash: string
Base64-encoded sha256 hash of JSON from reference field. Required if reference is included.
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startsAt
Optional startsAt: number
When token starts being valid, Unix epoch in milliseconds
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title
Optional title: string
ex. "Arch Nemesis: Mail Carrier" or "Parcel #5055"
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updatedAt
Optional updatedAt: number
When token was last updated, Unix epoch in milliseconds