Reference

All main concepts are identified via references.

References are identified by a vector of 2 elements: a symbol and a map of properties.

A reference symbol might have:

• no namespace, defined in the extention definition (e.g. id)
• a single segment namespace, exposed by the host (e.g. store/get)
• a multi segment namespace, exposed by third party extensions registered via ENS (e.g. my-dapp.eth/id with my-dapp.eth an ENS name)