
Custos Finance
RWA exchange
Custos Finance says it is building a proof-first RWA exchange: asset context and proof should be visible before any market action, rather than listing first and proving later.
On 2026-08-28 the team published a GIWA Sepolia testnet prototype video, called it the last round of testing, and said it is moving from testnet toward private mainnet.
The website address announced the same day was marked as coming very soon and did not respond when checked.
Description from: @custosfinance ↗ · the project's own description
Note: A 2021 account rebranded for GIWA. X About metadata not verified.
About on X
@custosfinanceCustos Finance — an RWA exchange on GIWA. Bringing real-world assets onchain with transparent, verifiable proof. Real assets. Visible proof. Follow the build
- Followers
- 16
- Following
- 2
- Posts
- 16
- Account based in
- East Asia
- Connected via
- Web
Inferred by X from connection signals — not the team's nationality or legal domicile.
GASOK Phase 3
- Status
- Selected
- Evidence tier
- Self-announced
- Evidence
- View source ↗
Based on a public statement by the project itself or a credible third party. GIWA has never published an official roster. Phase 3 is also an ongoing stage, so this means admission to it rather than completion.
What Phase 3 is
GASOK is Dunamu and Upbit's builder program for GIWA — an incubation running five months or more. Phase 3 (Aug–Sep 2026) is the "market readiness & launch" stage, aiming at testnet user metrics and a private mainnet deployment. There are five tracks: DeFi/RWA, Consumer/Social, GIWA-Native, AI/Web3, and Mass Adoption.
What Phase 3 teams receive
- Engineering and productization support from the GIWA team, plus industry advisors
- Seoul office space if needed, and press and media support
- A slot at KBW 2026 Demo Day
- A $20K initial grant for the Demo Day winner, with more tied to later KPIs
A 2021 account rebranded for GIWA. X About metadata not verified.
Latest updates
Before liquidity comes proof. Custos Finance is exploring a proof-backed RWA exchange experience on GIWA Sepolia—where asset context is visible before market action. Could proof-first builders earn the edge? Testnet prototype only. #CustosFinance #GIWA #RWA https://t.co/ZnlFLWptX3

Custos Finance has officially advanced to Phase 3 of GIWA’s GASOK program. 🚀 From testnet to private mainnet and real product development—the next chapter begins. Thank you, GIWA. We’ll keep building. @GIWA_by_Upbit #CustosFinance #GIWA #RWA https://t.co/VMiErtxcgu