5 posts on "blockchain"
March 27, 2025
Interoperability of Blockchain Systems and the Future of Payments
In a previous post, we introduced a three-pillar framework for interoperability of payment systems and discussed how technological, legal, and economic factors contribute to achieve interoperability and aid in the “singleness of money”—that payments and exchange are not subject to volatility in the value of the money itself—in the context of legacy systems. In this post, we use the framework to characterize the interoperability of blockchain systems and propose a methodology for evaluating interoperability. We show evidence of limited interoperability and draw insights for the future of payment systems.
February 14, 2025
How Censorship Resistant Are Decentralized Systems?
Public permissionless blockchains are designed to be censorship resistant, meaning access to the blockchain is unhampered. In practice, different blockchain ecosystem actors (such as users, builders, or proposers) can influence the degree to which a blockchain is resistant to censorship. In a recent Staff Report, we examine how sanctions imposed by the Office of Foreign Assets Control (OFAC) on Tornado Cash, a set of noncustodial cryptocurrency smart contracts on Ethereum, affected Tornado Cash and the broader Ethereum network. In this post, we summarize findings regarding sanction cooperation at the settlement layer by “block proposers”—a set of settlement actors specifically responsible for selecting new blocks to add to the blockchain.
August 16, 2023
What Makes Cryptocurrencies Different?
Permissionless blockchains, which support the most popular cryptocurrency networks like Bitcoin and Ethereum, have shown that it is possible to transfer value without relying on centralized trusted third parties, something that is new and remarkable (although perhaps most clearly useful for less developed financial markets). What makes permissionless blockchains able to transfer value without relying on a small number of trusted third parties is the combination of several components that all need to work together. The components themselves are not particularly new, but the combination of these components is more than the sum of its parts. In this post, we provide a high-level overview of these components and how they interact, taking Bitcoin as an example.
July 19, 2019
At the New York Fed: Research Conference on FinTech
Financial technology (“FinTech”) refers to the evolving intersection of financial services and technology. In March, the New York Fed hosted “The First New York Fed Research Conference on FinTech” to understand the implications of FinTech developments on issues that are relevant to the Fed’s mandates such as lending, payments, and regulation. In this post, we summarize the principal themes and findings of the conference.
August 3, 2018
At the New York Fed: Thirteenth Annual Joint Conference with NYU‑Stern on Financial Intermediation
Better understanding of financial intermediation is critical to the efforts of the New York Fed to promote financial stability and economic growth. In pursuit of this mission, the New York Fed recently hosted the thirteenth annual Federal Reserve Bank of New York–New York University Stern School of Business Conference on Financial Intermediation. At this conference, a range of authors were invited to discuss their research in this area. In this post, we present some of the discussion and findings from the conference.
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