The combination of smart contracts with blockchain technology has created new opportunities to conduct business, realize efficiencies and establish legally enforceable digital contracts. In this two-part video series, Proskauer’s Jeffrey Neuburger and Wai Choy share:
Once purely theoretical, “majority” or “51%” attacks on public blockchains have dealt participants a reality check: The fundamental assumption of Satoshi Nakamoto’s 2008 Bitcoin whitepaper (that computing power will remain sufficiently decentralized in blockchain networks that rely on a “proof-of-work” consensus mechanism) can in practice actually be exploited to enable double spending.
“The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes…. If a majority of CPU power is controlled by honest nodes, the honest chain will grow the fastest and outpace any competing chains. To modify a past block, an attacker would have to redo the proof-of-work of the block and all blocks after it and then catch up with and surpass the work of the honest nodes.” – Satoshi Nakamoto, Bitcoin: A Peer-to-Peer Electronic Cash System
These incidents have provided opportunities for developers of both public and private blockchains, as well as operators of blockchain-based digital asset trading platforms, to learn from the first generation of blockchain deployments.
Proskauer authored an in-depth Practice Note published by Practical Law, which details best practices for the use of smart contracts on blockchains. It discusses functional and legal considerations for both standalone smart contracts and smart contracts used in conjunction with traditional written contracts (hybrid smart contracts) and explores the
We are happy to report that our recent in-depth Practice Note on Blockchain as applied to Supply Chain Management was selected to appear as the cover story for the June/July issue of Practical Law – The Journal. Read the full text here.
The plot has thickened in the longest-running “whodunit” in the blockchain space: Who is Satoshi Nakamoto, the pseudonymous creator of Bitcoin and author of the white paper that started it all, Bitcoin: A Peer-to-Peer Electronic Cash System? Published in 2008, Nakamoto’s paper proposed a form of electronic cash that would operate purely peer-to-peer, without the need for a trusted intermediary (such as a centralized financial institution) and in a verifiable manner that protects against the “double-spend” problem. That white paper served as the launch pad for the Bitcoin network and inspired blockchain’s proliferation. Over a decade later, the true identity of Nakamoto and whether Nakamoto is a single person or a collective remain a mystery, despite speculation and multiple claims to the digital throne.
Recently, claimants turned to intellectual property registrations in their campaigns for recognition. In April 2019, Australian entrepreneur Craig Wright (who has long claimed to be Nakamoto) sparked controversy in the blockchain community by filing two copyright registrations claiming authorship of Nakamoto’s white paper (Reg. No. TXu002136996) and the original Bitcoin source code (Reg. No. TX0008708058). In the wake of Wright’s claims, on May 24, 2019, Wei Liu, reportedly a cryptocurrency entrepreneur and a Chinese citizen with an address in California, upped the ante by also filing a copyright registration (Reg. No. TX0008726120) asserting that he had in fact authored the white paper.
The gauntlet, it seemed, had been thrown down.
Proskauer authored a Practice Note published by Practical Law, which provides an overview of the use of blockchain and smart contracts in the supply chain context, including the legal issues, concerns, benefits and risks associated with its use. It includes, among other topics, information on key distinctions between public
Today, Ohio reportedly becomes the first US state to allow taxes to be paid in the form of bitcoin. Although the program, which is spearheaded by Ohio Treasurer Josh Mandel, will not be available to individual taxpayers until a later time, businesses operating in Ohio are now able to register
Virtual worlds similar to the OASIS in Steven Spielberg’s upcoming film Ready Player One may be closer than we think – and provably scarce, blockchain-based digital assets could provide the leap forward that gets us there. Already, developers are testing early implementations.
Since CryptoKitties launched at the end of 2017, promptly causing a traffic jam on the Ethereum network and proving that crypto-collectible “games” leveraging blockchains can be a hot commodity, a number of copycats have sprung up.
While interesting, this first generation of blockchain games has been a relatively simple series of experiments. Meanwhile, developers have taken note of the potential synergies between blockchain-based digital assets and the mass-market video game and virtual/augmented reality space. As they explore potential ways of using blockchain technology to make virtual worlds and interactions more immersive and to build better bridges between in-game and real-world commerce, there are a number of legal issues to consider.