Position
PBM is a digital-currency-based financial service that fills the gap between local currencies and digital vouchers — purpose-bound but closed — and general-purpose payment services — scalable but without usage conditions.

Sooho standardizes this middle ground
as open infrastructure.
What is PBM
01
Define acceptance, period, recipient, and purpose as smart-contract conditions.
02
Separation of asset and purpose
The underlying value (deposit tokens, vouchers) stays intact — only the purpose is wrapped and unwrapped.
03
Atomic settlement
Once conditions are met, settlement completes automatically in real time — with no post-hoc reconciliation.
Technology that doesn't control money, but makes its purpose executable.
Conceptual framework: MAS Project Orchid — Purpose Bound Money Whitepaper
Open PBM Infrastructure
Sooho builds PBM directly as core infrastructure and connects issuers, payment providers, and domain partners as plugins (a Core + Plugin model).
Access Layer
Platform Layer — Orchestrator
The orchestrator's role
For PBM, the core is not issuance but the orchestration that evaluates conditions
and completes settlement.
Oracle-based condition evaluation — verifying welfare data and eligibility in real time
DID identity and eligibility verification — confirming recipient and merchant eligibility on-chain
Cross-layer atomic settlement — completing cross-layer payment and settlement in a single transaction
Asset Layer
Proven Across Domains
Sooho's open PBM infrastructure is being validated through real projects across three domains.
Some projects are in discussion or preparation; partner names and figures are shown only within the scope permitted for public disclosure.
Public · Welfare
Purplace / K-BTF
Ensuring welfare budgets are spent as intended — public-issuance PBM infrastructure
Issue, spend, and settle welfare and voucher budgets according to designated purpose conditions.
Settlement · FX
Project Namsan & Tiko Pay
KRW on-chain payment and settlement rail
As part of Phase 1 of 'Project Namsan'—a global initiative to revitalize the domestic KRW stablecoin ecosystem—we have launched and currently operate TikoPay, a Wallet-to-Wallet payment app for foreign tourists.
Bank · Deposit Token
Deposit Token Settlement
Corporate settlement and consumer payments, completed with bank deposit tokens
Supports corporate settlement and retail payments based on tokenized deposits from the central bank and domestic commercial banks, combining the stability of bank deposits with PBM condition rails.
Why Sooho.io
For PBM, orchestration matters more than issuance.
Sooho has proven this through its security DNA and infrastructure track record.
01
Security expertise
Security DNA
Reagent, our AI-powered smart-contract security solution, validates the infrastructure 24/7.
02
Institutional track record
Enterprise Experience
Proven experience orchestrating projects with KOMSCO, banks, and government agencies.
03
Domain connectivity
Bridging Innovation
Connecting public sector, payments, small merchants, and banks on a single condition rail.















