Fund verifier wallet for delegated attestations

[cyberstorm-nisto]

Context

The verifier wallet pays gas for commit attestations on behalf of users.

Wallet

• Address: 0x0CA6A71045C26087F8dCe6d3F93437f31B81C138
• Role: VERIFIER on UsernameUniqueResolverV2
• Currently: Used for identity verification signatures
• Needed: ETH balance for on-chain attestation txs

Requirements

Testnet (Base Sepolia)

• Fund from faucet or existing testnet ETH
• Estimate: 0.1 ETH should cover many test attestations

Mainnet (Base)

• Determine funding source (Allen, treasury, etc.)
• Estimate gas costs per attestation
• Set up monitoring for low balance alerts

Gas Estimates

• EAS attest(): ~100-150k gas
• At 0.1 gwei base fee: ~0.00001-0.000015 ETH per attestation
• 1 ETH = ~66,000-100,000 attestations on Base

Security

• Private key must be securely stored
• Consider: HSM, AWS KMS, or similar for mainnet
• Backend should have spending limits

Depends On

• Issue Delegated commit attestation backend #10 (backend implementation)