Global Reserve Unit (GRU)
The GRU is the flagship digital-native reserve layer — a basket-anchored unit with transparent issuance rules and settlement-grade infrastructure. It is designed to complement national currencies and IMF-style instruments, not replace central bank money where law reserves that role exclusively.
Within DBIS tripartism, GRU activity is controlled through sovereign treasury mandates, regulated financial counterparty execution, and technical settlement evidence across ISO 20022 references, OMNL ledger entries, HYBX workflow state, and optional Chain 138 attestations.
Institutional functions
- Multi-currency anchor for participating institutions and corridor liquidity
- Reserve settlement token with published issuance and redemption boundaries
- Bridge between public transparency surfaces and member-only operational consoles
- Evidence trail connecting mandates, counterparties, payment messages, ledger postings, and reconciliation packets
On-chain implementation
The GRU reserve program is backed by deployed settlement infrastructure on Chain 138:
- cUSDT (0x93E6…7f22) — compliant USD treasury / government bond exposure for institutional settlement
- cUSDC (0xf222…640b) — compliant USD cash-tokenized electronic money for institutional settlement
- cXAUC / cXAUT — gold-backed tokens (1 token = 1 troy oz Au) anchoring the reserve's commodity layer
- PMM pools — DODO Proactive Market Maker pools providing on-chain liquidity for mint/redeem and cross-pair settlement
Full contract table and verified addresses are documented on the GRU technical model page and the Infrastructure page.
Governance & publication
Basket composition, rebalancing cadence, and emergency measures are decided under Council procedures described in Governance. Machine-readable policy summaries are published at /policy.json.
Control model
- Treasury Control — mandate, signatory, approval, and reserve-policy evidence before issuance or retirement.
- Compliance Control — EDD, KYC/CDD, sanctions, source-of-funds, and ongoing monitoring for participating counterparties.
- Settlement Control — ISO 20022 payment references, bank acknowledgements, OMNL journal entries, and HYBX workflow state.
- Evidence Control — reconciliation packets, payload hashes, and optional Chain 138 attestations for auditability.
Related reading
- GRU v2 ecosystem — full token family overview, multi-chain cW* deployment map, and aggregator listings
- Token directory — canonical token reference with contract addresses across all networks
- Monetary policy — issuance formula and backing model
- Technical model — deployed contracts, wallet integrations, and settlement parameters
- Operations — operational procedures and settlement workflows