Blockchains employ sophisticated cryptography to store information (such as Bitcoin transactions) so that it cannot be changed. Additional security is provided by having several organizations maintain separate copies of the blockchain that must agree with each other. A company surveyed Canadian industry last year for applications of blockchains and recorded the industry in which it is used, the type of information stored, how many copies of the blockchain are maintained, and the number of data items that can be recorded on the blockchain per second. This information is stored in the company's own blockchain and it sells statistical summaries of this data to organizations that are considering implementing blockchains of their own. It also sells detailed case examples of blockchain use, including quotations from interviews with users and analysis of the business benefits of the blockchain.

a) Identify the Five W's and also How.

b) Identify which data (if any) are 

{i) Quantitative/categorical
(ii) Cross-sectional/time series 

(iii) Primary/secondary