How V3 Works
Untron V3 converts provable Tron deposits into settleable EVM payouts.
The 30-second picture
- A depositor sends TRC-20 USDT on Tron to a deterministic receiver address (derived from a
receiverSalt). - On the EVM hub, a lease defines who controls routing for that salt (beneficiary/target chain/token/fees) at a given time.
- The hub recognizes value and creates claims (always denominated in hub USDT).
- Anyone can settle claims permissionlessly via
fill(optionally swapping/bridging) to the lease’s payout config.
Recognition paths
There are two ways deposits/controller activity become claims:
- Fast path: prove an individual Tron deposit directly on the hub (
preEntitle). - Slow path: relay + process the Tron controller’s SHA-256 event hash-chain (
relayControllerEventChain,processControllerEvents).
Key nouns
- Receiver salt: stable identifier; receiver contracts can be deployed “late”.
- Lease: time-indexed routing authority + fee parameters.
- Claim: hub-side obligation enqueued for later settlement.
Next
- Read the full deep dive: Protocol Reference
- Or jump to the API surface: V3 API