Why Lawyers, Law Professors, and Judges Should Care About Blockchain

We’re a month away from our second annual Business Law Professor Blog CLE, hosted at the University of Tennessee on Friday, September 14, 2018. We’ll discuss our latest research and receive comments from UT faculty and students. I’ve entitled my talk Beyond Bitcoin: Leveraging Blockchain for Corporate Governance, Corporate Social Responsibility, and Enterprise Risk Management, and will blog more about that after I finish the article. This is a really long post, but it’s chock full of helpful links for novices and experts alike and highlights some really interesting work from our colleagues at other law schools.

Two weeks ago, I posted some resources to help familiarize you with blockchain. Here’s a relatively simple definition from John Giordani at Forbes:

Blockchain is a public register in which transactions between two users belonging to the same network are stored in a secure, verifiable and permanent way. The data relating to the exchanges are saved inside cryptographic blocks, connected in a hierarchical manner to each other. This creates an endless chain of data blocks -- hence the name blockchain -- that allows you to trace and verify all the transactions you have ever made. The primary function of a blockchain is, therefore, to certify transactions between people. In the case of Bitcoin, the blockchain serves to verify the exchange of cryptocurrency between two users, but it is only one of the many possible uses of this technological structure. In other sectors, the blockchain can certify the exchange of shares and stocks, operate as if it were a notary and "validate" a contract or make the votes cast in online voting secure and impossible to alter. One of the greatest advantages of the blockchain is the high degree of security it guarantees. In fact, once a transaction is certified and saved within one of the chain blocks, it can no longer be modified or tampered with. Each block consists of a pointer that connects it to the previous block, a timestamp that certifies the time at which the event actually took place and the transaction data.

These three elements ensure that each element of the blockchain is unique and immutable -- any request to modify the timestamp or the content of the block would change all subsequent blocks. This is because the pointer is created based on the data in the previous block, triggering a real chain reaction. In order for any alterations to happen, it would be necessary for the 50%-plus-one of the network to approve the change: a possible but hardly feasible operation since the blockchain is distributed worldwide between millions of users.

In case that wasn’t clear enough, here are links to a few of my favorite videos for novices. These will help you understand the rest of this blog post.

• Blockchain Expert Explains One Concept in 5 Levels of Difficulty
• 19 Industries That Blockchain Will Disrupt
• How Blockchain is Changing Money and Business

To help prepare for my own talk in Tennessee, I attended a fascinating discussion at SEALS on Thursday moderated by Dean Jon Garon of Nova Southeastern University Shepard Broad College of Law called Blockchain Technology and the Law.

For those of you who don’t know how blockchain technology can relate to your practice or teaching, I thought I would provide a few questions raised by some of the speakers. I’ve inserted some (oversimplified)links for definitions. The speakers did not include these links, so if I have used one that you believe is incomplete or inaccurate, do not attribute it to them.

Professor Del Wright, University of Missouri-Kansas City School of Law;

Del started the session by talking about the legal issues in blockchain consensus models. He described consensus models as the backbones for users because they: 1) allow users to interact with each other in a trustless manner; 2) ensure the integrity of the ledger in both normal and adversarial situations; and 3) create a “novel variety of networks with extraordinary potential” if implemented correctly. He discussed both permissioned (e.g. Ripple) and permissionless (Bitcoin) systems and how they differ. He then explained Proof of Work blockchains supported by miners (who solve problems to add blocks to the blockchain) and masternodes (who provide the backbone support to the blockchain). He pointed out how blockchains can reduce agency costs and problems of asymmetrical information and then focused on their utility in financial markets, securities regulation, and corporate governance. Del compared the issues related to off-chain governance, where decisionmaking first takes place on a social level and is then actively encoded into the protocol by the developers (used by Bitcoin and Ethereum) to on-chain governance, where developers broadcast their improvement protocols on-chain and then, once approved, those improvements are implemented into the code. He closed by listing a number of “big unanswered issues” related to regulatory guidance, liability for the performance of the technology and choice of consensus, global issues, and GDPR and other data privacy issues.

Professor Catherine Christopher, Texas Tech University School of Law;

Catherine wants to help judges think about smart contracts. She asked, among other things, how judges should address remedies, what counts as substantial performance, and how smart contract audits would work. She questioned whether judges should use a consumer protection approach or instead follow a draconian approach by embracing automation and enforcing smart contracts as drafted to discourage their adoption by those who are not sophisticated enough to understand how they work.

Professor Tonya Evans, University of New Hampshire School of Law (follow her on Twitter; see her blog on blockchain here);

Tonya focuses on blockchain and intellectual property. Her talked raised the issues of non-fungible tokens generated through smart contracts and the internet of value. She used the example of cryptokitties, where players have the chance to collect and breed digital cats. She also raised the question of what kind of technology can avoid infringement. For more on how blockchain can disrupt copyright law, read her post here.

Professor Rebecca Bratspies, CUNY School of Law;

In case you didn’t have enough trust issues with blockchain and cryptocurrency, Rebecca’s presentation focused on the “halo of immutability” and asked a few central questions: 1) why should we trust the miners not to collude for a 51% attack 2) why should we trust wallets, which aren’t as secure as people think; and 3) why should we trust the consensus mechanism? In response, some members of the audience noted that blockchain appeals to a libertarian element because of the removal of the government from the conversation.

Professor Carla Reyes, Michigan State University College of Law- follow her on Twitter at Carla Reyes (@Prof_CarlaReyes);

Carla talked about crypto corporate governance and the potential fiduciary duties that come out of thinking of blockchains as public trusts or corporations. She explained that governance happens on and off of the blockchain mechanisms through social media outlets such as Redditt. She further noted that many of those who call themselves “passive economic participants” are actually involved in governance because they comment on improvement processes. She also noted the paradox that off chain governance doesn’t always work very well because participants don’t always agree, but when they do agree, it often leads to controversial results like hard forks. Her upcoming article will outline potential fiduciaries (miner and masternode operators for example), their duties, and when they apply. She also asked the provocative question of whether a hard fork is like a Revlon event.

Professor Charlotte Tschider, William Mitchell College of Law (follow her on Twitter);

As a former chief privacy officer, I have to confess a bias toward Charlotte’s presentation. She talked about blockchain in healthcare focusing on these questions: will gains in cybersecurity protection outweigh specific issues for privacy or other legal issues (data ownership); what are the practical implications of implementing a private blockchain (consortium, patient-initiated, regulatory-approved); can this apply to other needed uses, including medical device applications; how might this technology work over geographically diverse regulatory structures; and are there better applications for this technology (e.g. connected health devices)? She posited that blockchain could work in healthcare because it is decentralized, has increased security, improves access controls, is more impervious to unauthorized change, could support availability goals for ransomware attacks and other issues, is potentially interoperable, could be less expensive, and could be controlled by regulatory branch, consortium, and the patient. She closed by raising potential legal issues related to broad data sharing, unanswered questions about private implementations, privacy requirements relating to the obligation of data deletion and correction (GDPR in the EU, China’s cybersecurity law, etc); and questions of data ownership in a contract.

Professor Eric Chason, William & Mary Marshall-Wythe School of Law;

Eric closed by discussing the potential tax issue for hard forks. He explained that after a hard fork, a new coin is created, and asked whether that creates income because the owner had one entitlement and now has two pieces of ownership. He then asked whether hard forks are more like corporate reorganizations or spinoffs (which already have statutory taxation provisions) or rather analogous to a change of wealth. Finally, he asked whether we should think about these transactions like a contingent right to do something in the future and how that should be valued.

Stay tuned for more on these and other projects related to blockchain. I will be sure to post them when they are done. But, ignore blockchain at your peril. There’s a reason that IBM, Microsoft, and the State Department are spending money on this technology. If you come to UT on September 15^th, I’ll explain how other companies, the UN, NASDAQ, and nation states are using blockchain beyond the cryptocurrency arena.