PARAMETA Registers Korea's First Blockchain Wallet and ID Service on the Public Procurement Service Digital Marketplace

MyID 2.0, the only blockchain SaaS for public institutions, registered on the Digital Service Support System
First blockchain service to obtain CSAP certification, meeting the security requirements for public sector adoption
Web3-based services applicable to real administrative work — citizen cards, access passes, digital certificates
Set to be applied to Busan Metropolitan City's battery passport platform

October 28, 2025, Seoul — Web3 Enabler PARAMETA announced on the 28th that it has officially registered MyID 2.0 — the core service of the K-BTF demonstration project led by the Ministry of Science and ICT and the Korea Internet & Security Agency — on the Digital Service Support System (the "digital marketplace").

MyID 2.0 is shared blockchain infrastructure dedicated to public institutions, designed so that DID and blockchain-based services can be adopted on a subscription basis within a week, with no separate infrastructure build. The service comprises ▲ DID (Decentralized Identifier), a blockchain-based identity verification technology, ▲ blockchain wallet functionality linked to DID-based authentication, ▲ a Personal Data Store (PDS) that lets users directly control and manage real-time data, and ▲ the Blockchain File System (BFS), which addresses the existing limitations of IPFS in implementing distributed storage through content addressing. BFS was developed in-house by PARAMETA through the Ministry of Science and ICT's blockchain technology development project for the data economy. The wallet functionality in particular is linked to DID, allowing users to securely manage assets, tokens, and authentication records, and can be flexibly extended across a range of public services.

With MyID 2.0, local governments can also use DID and wallet infrastructure without separate development to issue local currency in stablecoin form easily and at low cost — and are expected to be able to meet the various regulatory requirements that will accompany the formalization of stablecoin rules.

The digital marketplace is an integrated platform operated by the Public Procurement Service so that public institutions can adopt private-sector digital services quickly and efficiently. Registration requires meeting demanding criteria for security certification, operational stability, and public applicability; SaaS-form services in particular must obtain Cloud Security Assurance Program (CSAP) certification. PARAMETA met the registration requirements this past May, becoming the first blockchain service in Korea to obtain CSAP certification.

MyID 2.0 will also be applied to the blockchain-based battery passport platform led by Busan Metropolitan City. On that platform, which securely manages full lifecycle data for electric vehicle batteries on blockchain, PARAMETA is combining DID, VC, and PDS technologies to implement a decentralized Data Space. This secures battery safety and transparency while laying the groundwork for compliance with the EU's Digital Product Passport (DPP) regulation.

"Registering on the digital service marketplace has dramatically lowered the barrier to adoption for public institutions," said PARAMETA CEO JH Kim. "We will do our utmost to accelerate the spread of blockchain technology in administrative practice and to provide trust-based infrastructure for the nation's digital transformation."

MyID 2.0 can be found by searching "MyID 2.0" on the Public Procurement Service digital service mall (digitalmall.g2b.go.kr), and consultations and inquiries are available through the PARAMETA website (www.parametacorp.com).

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