The Digital Asset Model

To avoid redundant data in transactions, the digital asset model is different for CREATE and TRANSFER transactions.

A digital asset's properties are defined in a CREATE transaction with the following model:

{
    "data": "<json document>"
}

For TRANSFER transactions we only keep the asset ID:

{
    "id": "<asset's CREATE transaction ID (sha3-256 hash)>"
}

id: The ID of the CREATE transaction that created the asset.
data: A user supplied JSON document with custom information about the asset. Defaults to null.