Asset Descriptor v1.0

Abstract

This document's purpose is to specify the asset metadata, to enable 3rd party tools to consume and display the subset of asset-related information in a simple and well-standardized manner.

Each asset has 2 groups of properties:

• Standard properties
• Optional properties

WARNING: Both types of properties are immutable and can't be changed after the asset is created. Therefore, it is strongly recommended to double-check the values before starting the asset distribution.

Standard properties

Each standard property should be specified in English letters is stored in the dedicated field as described here

• N= Human-readable asset name, for example Beam Coin
• SN= Human-readable short name/asset code, for example BEAM
• UN= Human-readable asset unit name, for example Beam
• NTHUN= Human-readable smallest asset unit name (nth-unit name), for example Groth

Optional metadata

• The metadata should be serialized in a JSON format as a series of optional properties (see the list below)
• The total size of the metadata cannot exceed 16 Kbytes
• Every description should be in English

The optional properties are:

• json-schema-version: numeric values, separated by dots. Currently, the only value allowed is 1.0, specified in this document,
• short-description: a one-liner, should not exceed 128 characters.
• long-description: a paragraph, should not exceed 512 characters.
• emission-type: should be either fixed or variable
• smallest-to-regular-ratio: the number that represents the ratio of the smallest asset unit to regular unit (example: 100000000).
• website-url: a URL of the asset website
• pdf-url: URL for the description paper
• large-logo-png-url: URL of the 1024x1024 pixels logo (can be used for printing)
• medium-logo-png-url: URL of the 512x512 pixels logo (can be used for website banners)
• small-logo-png-url: URL of the 128x128 pixels logo (can be used for icons)
• favicon-ico-url: URL of the favicon
• large-logo-svg: URL of the logo in vector format