could the metadata inn ERC721 be altered after issuing a token ? I want to create an contract allowing people changing the Token metadata content (on the tokens purchased in ICO).
Metadata of a non-fungible ERC-721 token are hosted on a public HTTP address. The content of this metadata JSON file can be changed. ERC-721 standard does not prevent you to add smart contract logic for changing token's URI.
metadata
call even a pseudo-random number. btw,metadata
is optional, not a requirement. – Nulik Jun 28 '18 at 23:25totalSupply
. So I guess your idea of offering metadata on purchased tokens in an ICO is conceptually flawed. – Nulik Jun 29 '18 at 20:27