zone.requestVerifiableWithdrawal

Requests a verifiable withdrawal from a zone to the parent Tempo chain. The zone sequencer encrypts the sender's identity for the provided revealTo public key.

Usage

import { PublicKey, Secp256k1 } from 'ox'
import { parseUnits } from 'viem'
import { client } from './zones.config'
 
// Generate a keypair for decrypting the sender identity later.
// Store the private key securely — the holder can reveal the sender.
const { privateKey, publicKey } = Secp256k1.createKeyPair()
const revealTo = PublicKey.toHex(PublicKey.compress(publicKey))
 
const { receipt } = await client.zone.requestVerifiableWithdrawalSync({
  amount: parseUnits('100', 6),
  token: '0x20c0000000000000000000000000000000000001',
  revealTo,
})
 
console.log('Transaction hash:', receipt.transactionHash)

import { privateKeyToAccount } from 'viem/accounts'
import { createClient } from 'viem/tempo'
import { http, zoneModerato } from 'viem/tempo/zones'
 
export const client = createClient({
  account: privateKeyToAccount('0x...'),
  chain: zoneModerato(7),
  transport: http(),
})

Asynchronous Usage

The example above uses a *Sync variant of the action, that will wait for the transaction to be included before returning.

If you are optimizing for performance, you should use the non-sync zone.requestVerifiableWithdrawal action and wait for inclusion manually:

import { PublicKey, Secp256k1 } from 'ox'
import { parseUnits } from 'viem'
import { client } from './zones.config'
 
const { privateKey, publicKey } = Secp256k1.createKeyPair()
const revealTo = PublicKey.toHex(PublicKey.compress(publicKey))
 
const hash = await client.zone.requestVerifiableWithdrawal({
  amount: parseUnits('100', 6),
  token: '0x20c0000000000000000000000000000000000001',
  revealTo,
})
const receipt = await client.waitForTransactionReceipt({ hash })

Return Type

type ReturnType = {
  /** Transaction receipt */
  receipt: TransactionReceipt
}

Parameters

amount

• Type: bigint

Amount of tokens to withdraw.

token

• Type: Address | bigint

Token address or ID to withdraw.

revealTo

• Type: Hex

33-byte compressed secp256k1 public key. The zone sequencer encrypts the sender's identity for this key.

to (optional)

• Type: Address
• Default: account.address

Recipient address on the parent Tempo chain.

data (optional)

• Type: Hex
• Default: '0x'

Optional callback data for the recipient.

fallbackRecipient (optional)

• Type: Address
• Default: to

Fallback address if callback fails.

gas (optional)

• Type: bigint
• Default: 0n

Gas limit reserved for the withdrawal callback on the parent chain.

memo (optional)

• Type: Hex
• Default: 0x00...00

Optional withdrawal memo.

account (optional)

• Type: Account | Address

Account that will be used to send the transaction.

feeToken (optional)

• Type: Address | bigint

Fee token for the transaction.

Can be an unpaused USD-denominated TIP-20 token address or ID. Use client.fee.validateToken({ token }) to validate a token before submitting a transaction or setting it as a fee preference.

feePayer (optional)

• Type: Account | true

Fee payer for the transaction.

Can be a Viem Account, or true if a Fee Payer Service will be used.

gas (optional)

• Type: bigint

Gas limit for the transaction.

maxFeePerGas (optional)

• Type: bigint

Max fee per gas for the transaction.

maxPriorityFeePerGas (optional)

• Type: bigint

Max priority fee per gas for the transaction.

nonce (optional)

• Type: number

Nonce for the transaction.

nonceKey (optional)

• Type: 'expiring' | bigint

Nonce key for the transaction. Use 'expiring' to use expiring nonces (TIP-1009), which enables concurrent transaction submission without nonce ordering.

validBefore (optional)

• Type: number

Unix timestamp before which the transaction must be included.

validAfter (optional)

• Type: number

Unix timestamp after which the transaction can be included.

throwOnReceiptRevert (optional)

• Type: boolean
• Default: true

Whether to throw an error if the transaction receipt indicates a revert. Only applicable to *Sync actions.