# ADD_PIECES_TYPEHASH

```ts
const ADD_PIECES_TYPEHASH: string = EIP712_TYPE_HASHES.AddPieces;
```

Defined in: [packages/synapse-sdk/src/session/key.ts:29](https://github.com/FilOzone/synapse-sdk/blob/1d6c4b9fe34534bf1087dfe41491b72be0b46858/packages/synapse-sdk/src/session/key.ts#L29)