Watch Quant CEO on Oracle For Startups


Gilbert Verdian tells Oracle’s Whitney Durmick, “we’re making the benefits of blockchain accessible to everyone.” 

22 February 2022 

Our CEO Gilbert Verdian is featured in this week’s episode of Oracle For Startups, a showcase for founders and innovators. 

Explaining the origins of Quant and why he helped create the ISO standard for blockchain, Gilbert says “people were building the technology in isolation and that isn’t the way to do it for mainstream adoption. So, I started to look at how to interconnect all these siloed blockchains.” 

Gilbert goes on to discuss our work with LACChain and the Inter-American Development Bank on the creation of a Latin American Dollar and how consumers worldwide will ultimately benefit from blockchain: the ability to roam with one’s money across borders and to “programme” how it is used. 

Finally, Gilbert describes the close partnership Quant enjoys with Oracle: how we graduated from the company’s startup programme and the impact of having Overledger – the world’s first blockchain-agnostic API gateway – certified by Oracle for use with Oracle Blockchain

The future of blockchain, Gilbert concludes, is “integrated and ubiquitous.” 


Overledger 2.x

Overledger 1.x


OAuth 2.0 standard (allowing SSO)

Proprietary (BPI Keys)


In API, seamless updates

In SDK, re-download for updates


Full abstraction across all DLTs

Partial, DLT-specific edge cases

RCG Framework

REST / JSON APIs from OVL Core

Proprietary P2P (experimental)

Time to Deploy

32 minutes (CI / CD pipelines)

1-2 weeks

QNT Utility Token / Treasury

Optimised, audited smart contracts

Experimental smart contracts


Optimised to scale fast – 23 Microservices

Hardened proof of concept
– 9 Microservices

Transaction Routing Algorithm

6 factor, game theory optimised

Experimental P2P emergent


Cloud native (scaling / resilience)

Standalone DB deployments

Cross-DLT Implementation

REST API calls direct to OVL, integrated smart contract back end

SDK-based Javascript 
apps call smart contract functions
via OVL

2021 Achievements

50% Quant team has grown by over 50% and will continue to do so 

OVL1.0 to 2.0 Release schedule accelerated, moved to much more frequent automated updates
– Previously, last major update was seven months, then in early 2021 moved to three months (Jan and March)
and then to monthly (April and May). We’re now moving to fortnightly releases. 

2.5X Overledger is now 2.5x bigger (April)  

2.0 Re-engineered the entire 2.0 architecture

Open API 3.0 for easy integration into developer workflows

OAuth 2.0 for single sign on for enterprise customers    

Cloud Native Scalable and resilient already, now deployable automatically 

Native Transactions 

OVL 2.0 Developer portal 2.0