Kiffmeister’s #Fintech Daily Digest (20230308)

ANZ to trial offline CBDC payments via smart cards

Australia’s ANZ is partnering with two universities to trial offline central bank digital currency (CBDC) payments via smart cards that can be loaded with funds and used like physical cash. Students will install secure apps on their smartphones to view their CBDC balances and use NFC functionality to load CBDC onto their smart cards. Students will use them to make purchases at on-campus merchants and make instant peer-to-peer payments in offline environments when unconnected to existing banking infrastructures. [Read more at the DFCRC]

The CBN consults Convexity on eNaira adoption

The Central Bank of Nigeria (CBN) has reportedly partnered with Nigerian-based blockchain development firm Convexity to speed up the adoption of eNaira. Barbados-based Bitt is the CBN’s current eNaira platform provider, although rumors were flying in February 2023 that the CBN was looking for a new platform provider. From the headlines, one might suppose that Convexity’s role here is to replace Bitt’s, but a Techpoint article makes it seem like Convexity’s role is focused mainly on building use cases for the eNaira. [Read more at Techpoint]

Privacy enhancing technologies: payments and financial services in a digital society

The Bank of Japan (BoJ) published a paper on privacy-enhancing CBDC technologies, comparing methods for privacy-preservation, such as homomorphic encryption and zero-knowledge proofs (ZKPs), and discusses how important other central banks rank privacy within their CBDC projects. As part of its CBDC research, the BoJ will continue to research and study privacy protection related to digital currencies with a wide range of stakeholders. [Read more at the BoJ]

Upcoming conferences, webinars and speaking engagements:

  • I’ll be on a “public finance and the digital future” panel at the March 23-25 Willamette College of Law “Our Money, Our Future” (Hybrid) Conference in Salem, Oregon on March 24. [Register here]
  • I’ll be moderating the “CBDCs, Stablecoins, Commercial Bank Money Tokens – What is the Future of Money?” panel discussion at the Digital Euro Association Digital Euro Conference on March 31 in Frankfurt. [Register here]
  • I’ll be moderating a panel on “what happens when the lights go out…different schemes for offline functionality” at the in-person Digital Currency Conference (DCC) in Mexico City on May 18. [Register here]

Kiffmeister’s global central bank digital currency monthly monitor

Just a reminder that I produce a monthly digest of central bank digital currency (CBDC) developments exclusively for the official sector. So for any of you out there who work for a central bank, ministry of finance or international financial institution who would like to receive it by email on the first business day of every month, please DM me on LinkedIn or email me at

The Sovereign Official Digital Association (SODA) is a technology-agnostic firm offering advisory services at the intersection of central banking, digital finance and the web3 industry, aiming to make public digital money a reality. SODA believes institutions in the existing financial ecosystem should have access to the tools and resources they need to move from discussion to action. SODA offers ‘real life’ use cases to help test digital money and drive adoption as central banks and other public institutions explore the future of a more financially inclusive world powered by interoperable blockchain-based networks. SODA would love you to join us on this journey – please get in touch (

Satoshi Capital Advisors is a New York-based, global advisory firm that works with central banks, governments, and the private sector to architect, implement, and operate varying initiatives. Satoshi Capital Advisors’ central bank work revolves around CBDC architecture and implementation, providing advisory services from research phase through to growth phase. Utilizing a product-market fit and technology agnostic approach to CBDC architecture and implementation enables Satoshi Capital Advisors to build tailored solutions, bespoke to local financial system nuances. Satoshi Capital Advisors welcomes requests from central bank officials for virtual and in-person CBDC workshops. [Click here for more information]

WhisperCash offers the first fully offline digital currency platform that has the same properties as physical cash. It can perform secure consecutive offline payments without compromising on security, privacy or accessibility. WhisperCash allows direct person to person offline payments without any server infrastructure or internet connectivity. It comes in various form factors including the self-contained credit card-sized “Pro” that sports an eInk screen and capacitive keyboard, and lasts for two weeks between recharges assuming a few transactions per day. [Click here for more information]