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  • Homogeneous Security: The protocol establishes consistent cryptographic security for all permissionless participants. Security attributes remain unchanged when adding new networks or Solvers.
  • Battle-Tested: The core technology of Atomic Swaps (HTLC) has been successfully used in production for the Lightning Network.
  • No Pools: No single contract holds large amounts of funds. This design choice significantly reduces the risk of being targeted by attackers.
  • Immutability: The contracts are immutable. This eliminates the risks associated with upgrades.
  • Simplicity: HTLC contracts are straightforward locking mechanisms — a single Train contract per chain with a small surface: lock, redeem, refund.
The TRAIN contracts have not yet been externally audited. The properties above describe the protocol’s design; an independent audit and bug bounty are planned before the protocol is considered production-final.