Abstract

The assets are described here

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.

General notes

Asset meta is a byte buffer associated with the asset and stored on chain.

• Asset metadata should be an UTF-8 string
• Asset m etadata should be serialized as a simple name=value set of pairs, delimited with ;
• The keyN=valueN; sequence must be preceded with STD: prefix, there is no need for ; at the sequence end
• The total size of the metadata cannot exceed 16 Kbytes (16,384 bytes)
• Every description should be in English

Asset metadata 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 registration.

Standard properties, mandatory

• SCH_VER= metadata schema version, currently must be 1
• N= human-readable asset name, for example Hds Coin
• SN= human-readable short name/asset code, for example HDS
• UN= human-readable asset unit name, for example Hds
• NTHUN= human-readable smallest asset unit name (nth-unit name), for example Groth

Standard properties, non-mandatory

• NTH_RATIO= integer that represents the ratio of the smallest asset unit to regular unit. If omitted default value of 100000000 is used

Optional properties

• OPT_SHORT_DESC= an one-liner, should not exceed 128 characters
• OPT_LONG_DESC= a paragraph, should not exceed 1024 characters
• OPT_SITE_URL= URL of the asset website
• OPT_PDF_URL= URL for the description paper
• OPT_FAVICON_URL= URL of the favicon
• OPT_LOGO_URL= URL of the logo in SVG vector format