The Asian Development Bank has published a sweeping account of its blockchain experiments across Asia and the Pacific.
The report, Building Secure and Transparent Systems, published in May 2026, was produced by ADB’s Information Technology Department through its Digital Innovation Sandbox Program, a controlled environment designed to test emerging technologies in real-world but low-risk conditions.
Trade Finance: One Live Transaction, One Collapsed Platform
The most striking case study involves a live cross-border transaction completed in 2020. Using the Contour network, ADB, Standard Chartered, and the Bank for Investment and Development of Vietnam processed a $50,000 guarantee for a plastic goods shipment between Thailand and Vietnam. The process took under 4.5 hours. Conventional channels would have required more than a full business day.
The outcome held genuine promise. It wasn’t to last. Contour closed in November 2023, unable to secure sufficient funding from its bank shareholders underscoring a recurring tension in blockchain’s commercial history: the technology can work, but sustaining the consortiums required to operate it at scale remains stubbornly difficult.
Cross-Border Securities: Three Chains, One Atomic Swap
ADB’s Project Tridecagon connected three separate blockchain platforms (R3 Corda, Hyperledger Iroha, and Ethereum) to simulate cross-border delivery-versus-payment settlement across the ASEAN+3 bloc. The proof-of-concept successfully executed the simultaneous exchange of foreign currency, local currency, and securities tokens — an atomic swap across jurisdictions with differing financial architectures — compressing settlement that typically requires at least three working days to near-instantaneous.
ADB is clear that the goal was not to displace existing market infrastructure, but to demonstrate that blockchain could coexist with it as a lower-cost interoperability layer for markets that cannot afford bilateral host-to-host connections.
Carbon and Conservation
In the People’s Republic of China, ADB prototyped a blockchain master ledger to address double-counting of carbon credits across fragmented registries. In Bhutan, a separate pilot explored automating credit issuance, where end-to-end processing currently costs up to $300,000 and can take two years. In Indonesia, an attempt to leverage NFTs for coral reef conservation fundraising yielded a proof of concept rather than a deployable product.
Land Rights and Credentials
Fiji’s initiative may be the most operationally mature. A blockchain-based platform for customary land leasing, formally launched by the Government of Fiji in 2022, compresses lease processing from years to weeks by connecting previously siloed agencies to a shared ledger. In Indonesia, ADB supported the issuance of tamper-proof academic credentials on blockchain, addressing a domestic problem with fraudulent diplomas.
The Broader Lesson
Across its pilots, ADB draws a consistent conclusion: blockchain is not a default solution, and a conventional database remains cheaper and faster wherever a single trusted operator suffices. The technology earns its complexity premium in multiparty environments requiring tamper-resistance, cross-institutional transparency, and automated compliance — particularly where legacy infrastructure is thin. Stakeholder engagement, the report notes, can prove as decisive as the technology itself.
