Pause Transfers

Pause the TRANSFER feature during an incident without stopping issuance or cancellation. B20 grants pause and unpause through separate roles so you can separate emergency response from recovery authority.

Real-world asset (RWA) tokenization is one of many use cases for the B20 Asset standard. The examples on this page use a stock token for illustration; the same flows apply to other asset types.Tokenized securities examples shown for illustration. Base is a general-purpose blockchain; issuance and compliance are the responsibility of the issuer under applicable law.

Demo

The demo above is mock only. If you want to see onchain demos on Vibenet, head to Base chain demos.

New to B20? See the B20 Token Standard for the concepts and a full launch walkthrough. These samples target base-std@v1.0.0, viem@2.55.11, and Base Foundry v1.1.1.

Pause and Resume Stock Transfers

import { type Address } from "viem";
import { publicClient } from "../../shared/clients.js";
import { b20Abi } from "../abi.js";
import { sendContract } from "../write.js";

export async function setStockTransfersPaused(token: Address, paused: boolean) {
  await sendContract({ address: token, abi: b20Abi, functionName: paused ? "pause" : "unpause", args: [[0]] });
  const current = await publicClient.readContract({ address: token, abi: b20Abi, functionName: "isPaused", args: [0] });
  if (current !== paused) throw new Error("Unexpected transfer pause state");
}

base-cast send "$TOKEN_ADDRESS" "pause(uint8[])" "[0]" \
  --rpc-url "$RPC_URL" --private-key "$PRIVATE_KEY"
base-cast call "$TOKEN_ADDRESS" "isPaused(uint8)(bool)" 0 --rpc-url "$RPC_URL"
base-cast send "$TOKEN_ADDRESS" "unpause(uint8[])" "[0]" \
  --rpc-url "$RPC_URL" --private-key "$PRIVATE_KEY"

See the B20 token standard for the complete interface, roles, and policies.

Transfer pause state changes without pausing mint or burn.

Pause and unpause use separate roles. Grant recovery authority more narrowly than emergency pause authority.

Restrict Eligible Holders

Gate who can hold with policies.

Cancel Blocked Shares

Burn units from a blocked account.

Overview

Integrate DeFi

Tokenize Assets

Issue Stablecoins

Accept Payments

Demo

Pause and Resume Stock Transfers

See Also

Restrict Eligible Holders

Cancel Blocked Shares

​Demo

​Pause and Resume Stock Transfers

​See Also

Restrict Eligible Holders

Cancel Blocked Shares

Demo

Pause and Resume Stock Transfers

See Also