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A myAlaska electronic signature uses cryptography-based mechanisms to bind the data to be signed with the identity of the signer (myAlaska identity) and the date and time of the signing act. Due to this cryptographic binding, at any time after the signing act an independent third party can confirm non-repudiation (a person with knowledge of a particular myAlaska user name and password signed it, and no one else could have) and integrity (a change to any element of the content will be detectable via the cryptographic mechanism; i.e., the signature makes the content tamper-evident). The myAlaska system implements an electronic signature by packaging the data to be signed, the myAlaska identity of the signer, the date and time of the signing act, and the identity of the agency requesting the signature into one XML document and then digitally signing that XML document with a an X.509 certificate issued to the myAlaska system.