1. A method for pricing data according to provenance-based use in a query, the method comprising: identifying, by a processor, a set of data cubes, wherein a data cube in the set of data cubes comprises a quantum of data configured for trading in exchange for a payment, the set of data cubes being usable for answering the query; computing, by the processor, a first portion of a price for performing the query, wherein the first portion includes a price of a first data cube computed using a first set of provenance attributes and a first provenance-based pricing adjustment from a first pricing definition, the first data cube being included in the set of data cubes; computing, by the processor, a confidence level of a result set of the query; and presenting, by the processor, the set of data cubes, the first set of provenance attributes, the first portion of the price, and the confidence level in a pricing preview of the query.