Apparatus and methods for generating a unique token that can be imprinted on a document to attest to the verification of an executor's signature. The apparatus and methods may include a platform that may present a token electronically to the executor via a first electronic channel. The executor may use a registered device to capture a portion of the token, and transmit the portion from the registered device to the platform via a second channel to the platform. The platform may verify that the portion is registered to the executor. The platform may combine the portion with another portion of the token, and imprint the pair of combined portions on the document with another token.