dGoods is an open source and free standard for handling the virtual representation of items, both digital and physical, on the EOS blockchain led by Mythical Games. Fungible and non-fungible tokens are represented in this standard, as well as what we term semi-fungible tokens. These are nft's that share many properties but have at minimum a unique serial number. Things like tickets, luxury goods, or even fractionalized ownership are well suited to this classification and therefore, a major focus of this standard.

Three most important properties of dGoods which differentiate from other token standards

1. hierarchical naming structure of category:name for each token or set of tokens, enabling filtering and organization of tokens

2. focus on semi-fungible tokens -- that is, tokens that are 1 of n with a serial number

3. opensource metadata types and standardization for each type with localization, eg 3dGameAsset, Ticket, etc

• contract implementation shared with collaborating teams for feedback/security checks

Token config

• renamed symbolinfo table to tokenconfigs
• added name of the standard (dgoods), version, and changed symbol type to symbol_code
• added corresponding method called setconfig to set the symbol and version

Asset / Quantities

• introduce dasset type, similar to EOS asset but without unnecessary symbol
• dasset has functionality to convert from string
• all quantities are passed in as strings and converted to a dasset type
• precision is set similar to EOS asset and all numbers are converted to uint64_t

Issuance

• issue now takes a metadata_type
• tokeninfo table adds metadata_type onto the token instead of just in the metadata itself

Transfer

• fungible transfer parameters change to include category, token_name

Token Stats Table

• added issued_supply to keep track of serial_number when a token has been burned (ie current_supply is decreased but issued_supply never decreases)

Metadata Templates

• localization added
• Instead of just json object, metadata is an array of json objects with a lang key that specifies the language