Infrastructure

Technical infrastructure

The systems, networks, and services powering DBIS settlement operations, institutional governance, and public transparency.

Core systems

Chain 138

Settlement network

EVM-compatible settlement chain operating on Chain ID 138. Hosts 131 deployed smart contracts including PMM liquidity pools, cross-chain bridges (cUSDT, cUSDC), and settlement infrastructure.

Block explorer →RPC endpoint →

Absu

Consensus client

Hyperledger Besu fork purpose-built for Chain 138. Forked from besu-eth/besu with QBFT consensus for settlement-grade finality. Maintained by bis-innovations.

GitHub →

MetaMask Snap

Wallet integration

Browser wallet integration for Chain 138 — enables swaps, bridge operations, and real-time pricing within MetaMask. Most actively maintained component in the ecosystem.

GitHub →

Ledger Live integration

Hardware wallet

8-step Ledger hardware wallet integration guide for Chain 138. Enables cold storage and signing for settlement participants.

GitHub →

Fineract IPSAS ledger

Core banking

Apache Fineract instance configured for IPSAS-compliant institutional accounting. OMNL tenant provides central-bank-class ledger operations with double-entry bookkeeping.

Fineract admin →

Gitea (source control)

DevOps

Self-hosted Gitea instance hosting all DBIS portal source code, infrastructure configurations, and credential management. 9 organizations covering portals, infrastructure, and identity systems.

Gitea →

Deployed smart contracts

Chain 138 hosts 131 deployed smart contracts. Key contract categories:

cUSDT0x93E6…7f22
Compliant wrapped USDT (6 decimals)
cUSDC0xf222…640b
Compliant wrapped USDC (6 decimals)
cXAUC0x290E…EC6b
Gold-backed token — 1 token = 1 troy oz Au (6 decimals)
cXAUT0x94e4…C96E
Gold-backed token — 1 token = 1 troy oz Au (6 decimals)
DODOPMMIntegration0x5BDc…e72d
PMM integration — routes to canonical cUSDT/cUSDC pools
PMM Pool (cUSDT/cUSDC)0xff8d…0849
Primary stablecoin liquidity pool
PMM Pool (cUSDT/USDT)0x6fc6…9D71
cUSDT mint/redeem liquidity
PMM Pool (cUSDC/USDC)0x9f74…0263
cUSDC mint/redeem liquidity

Full contract addresses and verified bytecode are available on the Chain 138 explorer.

Web surfaces

Domain	Purpose
d-bis.org	Public institutional portal
admin.d-bis.org	Admin console
secure.d-bis.org	Member secure portal
core.d-bis.org	DBIS Core banking client portal
data.d-bis.org	Public data API
explorer.d-bis.org	Chain 138 block explorer
rpc.d-bis.org	Chain 138 JSON-RPC endpoint
fineract.d-bis.org	Fineract IPSAS ledger admin
gitea.d-bis.org	Source control (Gitea)
developers.d-bis.org	Developer hub and API documentation
identity.d-bis.org	DID registry
status.d-bis.org	System status monitoring