GIWA — Sepolia (WETH / GiwaLend)

GIWA is a Sepolia-based EVM testnet where Heron deploys a vault for WETH allocation into the GiwaLend protocol.

Overview

How It Works

1. User connects EVM wallet
2. Deposits WETH into HeronVault contract
3. Keeper evaluates on 5-min cycles
4. On Net-Edge approval: vault calls GiwaLend lending pool
5. Yield accrues from borrower utilization

Important: Decimal Handling

WETH uses 18 decimals (not 6 like USDC). The system reads decimals directly from the token contract to avoid scaling errors:

User types "0.001 WETH"
  → Frontend reads token.decimals() → 18
  → Scales: 0.001 × 10^18 = 1000000000000000 wei
  → Signs transaction with correct amount

Vault Contract

Same EVM vault architecture as Arc — Merkle mandate, caps, sentinel, emergency exit. The only difference is the underlying asset (WETH) and venue (GiwaLend).

Factory Deployment

Like Arc, GIWA uses factory-deployed per-user vaults. Each wallet gets an isolated contract instance.

Environment

HERON_NETWORK=giwa
HERON_GIWA_RPC=https://giwa-sepolia-rpc.example.com