A notary public is a licensed professional who serves as a witness and official verifier of the authenticity of various documents and transactions. Their primary responsibilities include administering oaths and affirmations, witnessing the signing of important documents, and verifying the identity of the parties involved. Notaries play a crucial role in preventing fraud and ensuring the legality and integrity of documents such as contracts, deeds, wills, and powers of attorney. They affix their official seal or stamp to the documents, indicating that the individuals involved have been properly identified and the signatures are valid. Notaries public are appointed by government authorities and are required to adhere to specific regulations and ethical standards in their practice.