Singapore’s central bank has published a post-trail analysis of its blockchain endeavor that saw digital tokens of the national currency issued on a private Ethereum blockchain.
A newly published report by the Monetary Authority of Singapore (MAS), reveals details of ‘Project Ubin’ its blockchain effort “which places a tokenized form of the Singapore Dollar (SGD) on a distributed ledger” platform.
The project is a part of the central bank’s joint-endeavor with blockchain consortium R3, which notably launched the ‘R3 Asia Lab’ in Singapore in November. Soon after, the central bank announced the development of a blockchain proof-of-concept pilot to facilitate interbank payments. The project was Project Ubin, before it got its name.
In March this year, the MAS completed the first phase of that pilot and revealed the token powering the interbank blockchain platform – a central bank-issued digital currency. Participating banks deposited cash as collateral in exchange for these digitized dollars, with payments and transfers between member banks settled using the MAS-issued digital currency. Ultimately, the banks would swap the digital currency to cash.
A Private Ethereum Blockchain
Now, in its report that goes with the tagline “The future is here”, the MAS has detailed findings of Project Ubin.
A technical excerpt from findings of Phase 1 of its pilot, which successfully completed the proof-of-concept (PoC) project points to:
A working interbank transfer prototype on a private Ethereum network…(and) successfully conducted end-ot-end integration between the private Ethereum network and MEPS+.
MEPS+ is the central bank operated Electronic Payment System, the national payments rail platform which enables domestic and international payments in Singapore.
The central bank also tested JPMorgan-developed Quorum, a private permissioned implementation of Ethereum with an enhanced focus on data privacy. One of the key observations include:
- Quorum replaces the proof-of-work consensus model with a voting-based model.
- Throughput was observed to be higher compared to the base Ethereum protocol.
Ultimately, a summary of the findings from Phase 1 concluded that it “was successful as it brought together a wide range of parties (including non-R3 member banks, R3 member banks, the Singapore Exchange and BCSIS as a technology provider).
The MAS also revealed that it also borrowed from Project Jasper, a similar effort undertaken by its Canadian counterpart, the Bank of Canada.
“Specifically, the architecture, code and lessons learned from Project Jasper were considered and applied to the Singapore context for Project Ubin,” the report’s authors wrote.
The next phases of the project would focus on “securities settlement by developing DvP (Delivery versus Payments) and Cross-border payments (PvP)”, the report concluded.
“We look forward to the next phases of our project which will develop trial applications for securities settlement andcross-borderr payments,” stated the central bank’s Fintech chief Sopnendu Mohanty.
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