Uniq default metadata

Introduction

Uniq default metadata is utilized whenever any token is reference that does not have a dedicated metadata URI. This can happen either intentionally if the tokens minted from the factory are identical (so there is no need for anything except default metadata) or accidentally in case due to some issue the tokens are minted without a dedicated metadata URI. In any case the default metadata functions identically to individual Uniq metadata with only exceptions that it is utilized when there is no override and the URI for this metadata is placed in the dedicated field of the factory on-chain data default_token_uri.

Supported dynamic values

Default token URI supports special dynamic values that can be used to modify the URI based on different context values which are different between different tokens/factories. If none of those values are specified the the URI is considered to be static (meaning that it is not context dependant). Followind dynamic values are supported:

Value	Description
factory_id	ID of the token factory from which the token was minted
id	ID of the token
hash	Hash of the token
serial_number	Serial number of the token

To specify a dynamic values within a URI you must enclose it in {} like so: https://example.io/{token_id}.json which should evaluate to https://example.io/42.json for the token with serial number of 42 whenever Ultra or any other integrator will be reading this default token metadata.

Metadata fields

Identical to Uniq metadata fields

Minimalistic example

{
    "specVersion":"1.0",
    "name":"Uniq default variant",
    "defaultLocale":"en-US",
    "media": {
        "product": {
            "contentType":"image/png",
            "integrity": {
                "type":"SHA256","hash":"76378a8e97f500dfd69fb9816189fb503a913e0f306a4307bc2d4d61ded8f89e"
            },
            "uris":["https://example.io/default/76378a8e97f500dfd69fb9816189fb503a913e0f306a4307bc2d4d61ded8f89e.png"]
        },
        "square": {
            "contentType":"image/png",
            "integrity":{
                "type":"SHA256","hash":"f41938bf16ed3e779b3de6c63e531bce84101947da49617ee6f6322ecadb1b0e"
            },
            "uris":["https://example.io/default/f41938bf16ed3e779b3de6c63e531bce84101947da49617ee6f6322ecadb1b0e.png"]
        }
    }
}

JSON schema

Identical to Uniq metadata schema