Bridging Operations

Bridging moves $USN or $sUSN from one chain to another. Noon uses Hyperlane and LeyerZero for cross-chain transfers. Follow this step-by-step guide.

For how the mechanism works under the hood, see Interoperability.

Before you bridge

• Confirm the origin chain (where your tokens are now) and the destination chain (where you want them).

• Make sure you hold a small amount of the native gas token on both chains.

• Verify the token contract on both chains against Contracts and Addresses.

Steps

1

Open the bridge

Go to https://app.noon.capital/bridge

2

Connect your wallet

Confirm your wallet is on the origin chain.

3

Select the token and destination chain

Choose $USN or $sUSN, then choose the chain to where you want to move your assets to.

4

Enter the amount

Review the quote, including the bridge fee and estimated arrival time.

5

Approve and confirm

Approve the token if prompted. Then confirm the bridge transaction in your wallet.

6

Wait for settlement

Bridging is not instant. Tokens are locked or burned on the origin chain. They are minted on the destination chain.

7

Verify the destination token

Verify the destination token matches the canonical address on Contracts and addresses.

If a bridge gets stuck

Cross-chain transfers can take time to finalise. A transfer can occasionally appear pending longer than expected. See Troubleshooting for what to check and how to get help.

How bridging works

Noon runs two bridging stacks, each fitted to the chains it serves:

LayerZero (OFT) carries $USN and $sUSN between chains. Security on these routes comes from Decentralized Verifier Networks (DVNs): every cross-chain message must be independently verified by three separate DVNs, run by LayerZero Labs, Horizen, and Nansen / Frax and all three must agree (3-of-3) before a transfer is accepted. No single verifier, including LayerZero's own, can pass a message alone. Requiring all three DVNs to agree has a trade-off: if one DVN is unavailable, transfers on that route pause until it comes back online. The design fails safely, toward a delay, and not toward a forged transfer.

Hyperlane (lock-and-mint) carries tokens to the remaining chains, locking supply on the origin chain and minting the representation on the destination, which keeps total supply consistent across chains.