A witness signature refers to the signature of an individual who has observed the signing of a legal document and can attest to its authenticity. JOB REQUIREMENTS: Must have a working desktop computer, webcam, microphone, and a highspeed Internet connection.(Personalized Seal). The CPO has authority over state agency procurement Authorized to provide leadership on procurement issues, the CPO may ana. Some contracts might need a witness or notary to be there when you sign. Here's a basic "howto" on signing contracts. The correct legal persons should sign the contract. An artist manageent agreement is the contract between the artist and the person or company they choose to manage their career. The parties hereto have executed in triplicate originals this Election Services Contract on this day of February 2021. Examples of contract signatures.