Specific technical record
Dual Node gives the founder profile a concrete, patent-backed interoperability anchor.
Web3 history
Web3 History
The source-backed history of Phạm Minh Trí / Tri Pham across KardiaChain, KaiChain, Dual Node interoperability, Vietnam GameFi context and Japan-facing regulated Web3 work.
2018
KardiaChain and patent filing
KardiaChain was built around blockchain interoperability. The Dual Node patent application was filed in Vietnam on 23 August 2018.
2019
Dual Node patent publication
The patent application for a dual network node device, information exchange method and system was published on 25 September 2019.
2020-2021
KardiaChain and Vietnam GameFi context
Coverage connected Tri Pham / Pham Minh Tri to KardiaChain and Vietnam's blockchain gaming wave.
2025
Dual Node patent grant
Vietnam patent number 1-0053047 was granted on 25 November 2025 and lists Phạm Minh Trí among the inventors.
2025-2026
KardiaChain to KaiChain and AI-era infrastructure
Public KAI/Kardia materials describe the move from KardiaChain toward KaiChain / KAI Network for the intelligent era, while the current founder profile shifts toward KAI K.K. and AI-native infrastructure.
Why This History Matters
Founder execution
KardiaChain / KaiChain ties the profile to shipped Web3 infrastructure and public company records.
Current relevance
The history carries into current work on AI-native systems and regulated Web3 applications from Japan.