> For the complete documentation index, see [llms.txt](https://docs.tap-protocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tap-protocol.com/functions/publish-your-docs/block-transferables.md).

# Block Transferables

{% hint style="info" %}
Tappable
{% endhint %}

To prevent grief attacks using the external "token-transfer", account holders can entirely disable this function by inscribing the inscription text below to themselves and tap (=send to yourself) the inscription. This feature is especially important if token-authorities are being used that redeem tokens from their own accounts.

Once tapped (=inscribed and again sent to yourself), incoming inscribe transfers are being skipped/invalidated such that no subsequent transfers using "token-transfer" aren't possible anymore. Existing transferables stay intact and can be used:

```json
{
  "p" : "tap",
  "op" : "block-transferables"
}
```