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The blockchain is a distributed ledger technology in the form of a distributed transactional database, secured by cryptography, and governed by a consensus mechanism. A blockchain is essentially a record of digital events. However, it is not ‘‘just a record,’’since it can also contain socalled smart contracts, which are programs stored on the blockchain that run as implemented without any risk of downtime, censorship, or fraud (Buterin 2014). While blockchain is now seen mostly as the technology enabling cryptocurrencies such as Bitcoin, it will most likely become an even more valuable enabler of economic and social transactions, for instance as a general purpose digital asset ownership record (Lindman et al. 2017). This is because the distributed transaction data and cryptographic logic that lies at the blockchain’s core make it extraordinarily tamper-resistant.