Mintlayer ↔ USDC

Local regtest and Anvil

26/26 scenarios passed across ordinary swaps, refunds, watchtower delegation, failover and controlled reorgs. The HTLC V2 contract also passed 24 Forge tests.

Public testnets

Two ordinary swaps settled on Mintlayer testnet and Ethereum Sepolia, beginning on Windows and repeated from Ubuntu 24.04 on WSL2 with signed maker/taker JSON files.

Release candidate

The first CLI release is being prepared with manual exchange of signed JSON files and testnet as the default profile. The Forgejo repository is currently private.

Public testnet evidence covers the ordinary path. Watchtower failover and reorg recovery were exercised locally. An eligible watchtower can relay a pre-signed refund or submit a delegated claim. Recovery depends on the canonical chain state and the time remaining. Mainnet swap validation is pending.

1. First CLI release

   Manual exchange of signed maker/taker JSON files. Setup instructions for PowerShell and Ubuntu 24.04 WSL2. An explicit experimental mainnet flag with a small-amount warning.

2. Peer-to-peer offer discovery

   Publish and browse signed offers directly in ZEUS, then exchange signed acceptances between clients. Manual file exchange remains available.

3. Web offer directory

   An optional read-only view of offers already circulating on the network. An offer link opens the installed ZEUS client for verification and acceptance.

4. One recovery phrase per user

   Derive separate Mintlayer and Ethereum keys from a single phrase and restore both wallets from it.

5. Mainnet pilot

   Validate an ordinary swap with very small amounts before expanding mainnet testing.

6. Voluntary assistance after exceptional losses

   Explore how a participant might choose to compensate a counterparty following a severe reorg.

7. Bitcoin integrations

   Revisit BTC ↔ ML and BTC ↔ USDC, including watchtower-assisted fee management.