> ## Documentation Index
> Fetch the complete documentation index at: https://turnkey-0e7c1f5b-bc-add-sdk-typedoc.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# SIGNATURE_SCHEME_TK_API_SECP256K1_EIP191

# Variable: SIGNATURE\_SCHEME\_TK\_API\_SECP256K1\_EIP191

> `const` **SIGNATURE\_SCHEME\_TK\_API\_SECP256K1\_EIP191**: `"SIGNATURE_SCHEME_TK_API_SECP256K1_EIP191"` = `"SIGNATURE_SCHEME_TK_API_SECP256K1_EIP191"`

Defined in: [packages/wallet-stamper/src/constants.ts:1](https://github.com/tkhq/sdk/blob/ee72856c3f450731d7501ab05001215768b71500/packages/wallet-stamper/src/constants.ts#L1)