The Islamic Development Bank Institute (IsDBI) was granted Patent No. 12,548,031 B2 by the U.S. Patent and Trademark Office (USPTO) on 10 February 2026.
This milestone represents the Institute’s second USPTO patent and itsz fifth patent overall. According to the IsDBI, the achievement reinforces its position as a leader in fintech innovation for economic development and Islamic finance. The patent protects an original method for achieving consensus within Distributed Ledger Technology (DLT) and blockchain networks, introducing a paradigm shift in how transactions are validated and secured.
A shift toward reciprocity in blockchain consensus
In any blockchain system, the consensus algorithm acts as a core component, determining how the network agrees on valid transactions, their order, and the overall integrity of the shared ledger without relying on a central authority.
The IsDBI’s newly patented Proof-of-Use (PoU) mechanism introduces a reciprocity-based approach. Under this system, participants validate the transactions of others in exchange for having their own transactions validated. This model aligns network influence directly with actual participation, rather than basing it on computational power or capital.
According to the Institute, this reciprocity principle is particularly suitable for development finance. It actively prevents the network from being captured by outside speculators whose primary objective is the reward for validation rather than the transactions themselves.
How Proof-of-Use compares to traditional models
Unlike traditional consensus models such as Proof-of-Work (PoW) and Proof-of-Stake (PoS), Proof-of-Use is built fundamentally on the principle of reciprocity. This creates a unique network environment characterised by several key advantages:
- Users and Validators are One: Only active participants who use the network have the right to validate members’ transactions. This contrasts with PoW and PoS models, where validators and users are distinct groups that often have divergent objectives.
- Environmental Sustainability: By eliminating the competitive “arms race” found in PoW algorithms, the PoU model removes the feedback loops that drive extensive energy consumption.
- Fairness and Equity: PoU addresses the inherent bias present in PoS models, which often favor participants holding the largest financial stakes. Through reciprocity, PoU prioritizes utility and participation over wealth concentration.
Strategic vision for inclusive growth
Dr. Sami Al-Suwailem, acting director general of the IsDB Institute, highlighted the strategic importance of the new patent: “The Proof-of-Use mechanism is an important component of the Institute’s innovation portfolio. Our objective is to build a digital ecosystem to support inclusive growth and shared prosperity across Member Countries and communities.”
He added: “We are actively exploring strategic partnerships to capitalize on the innovative ecosystem, in line with the IsDB Group’s 10-Year Strategic Framework, which calls for enhancing Islamic digital financial services to ensure broader access to finance.”
