Cross-Chain Bridge

Key Features

ERC-7802 Cross-Chain Token Standard

wTNZO implements ERC-7802 (SuperchainERC20) for standardized cross-chain token interoperability. Bridge adapters call crosschainMint when tokens arrive from external chains and crosschainBurnwhen tokens leave for external chains. Combined with Tenzro's pointer model, this creates a single unified balance across all chains — any conforming bridge adapter can interact with wTNZO without custom integration.

Code Examples

use tenzro_bridge::{BridgeRouter, BridgeRequest, Strategy};

let router = BridgeRouter::new(adapters);

// Transfer TNZO to Ethereum
let request = BridgeRequest {
    source_chain: ChainId::Tenzro,
    dest_chain: ChainId::Ethereum,
    asset: Asset::TNZO,
    amount: Amount::tnzo(100.0),
    recipient: eth_address,
};

let result = router.transfer(request, Strategy::Cost).await?;
println!("Bridge tx: {}", result.tx_hash);

use tenzro_bridge::layerzero::LayerZeroAdapter;

let lz = LayerZeroAdapter::new(config);

// Send message to Ethereum contract
let msg_id = lz.send_message(
    dest_chain,
    dest_address,
    payload,
    gas_limit,
).await?;

use tenzro_bridge::{BridgeRouter, Strategy};

let router = BridgeRouter::new(adapters);

// Route by lowest cost
let result = router.transfer(request, Strategy::Cost).await?;

// Route by fastest speed
let result = router.transfer(request, Strategy::Speed).await?;

// Route by highest availability
let result = router.transfer(request, Strategy::Availability).await?;

use tenzro_bridge::canton::CantonAdapter;

let canton = CantonAdapter::new(config);

// Execute DAML command
let tx = canton.submit_daml_command(
    party_id,
    template_id,
    arguments,
).await?;

// Query contracts
let contracts = canton.query_contracts(
    template_filter,
).await?;