A blockchain is a linear, chronological list of transaction records called blocks. (uphold.com)
The bitcoin blockchain can be utilized to store transaction records in its public ledger database, but that is far from its only use case. (coindesk.com)
Most investors don't have detailed transactions records for one cryptocurrency that shows their gains and losses, much less records for all of the other cryptocurrencies they are trading in. (thecollegeinvestor.com)