When you send Haven to someone you only need one piece of information, and that is their Haven address. A raw Haven address is a set of 95 characters starting with a '4'. The Haven donation address, for instance, is 888tNkZrPN6JsEgekjMnABU4TBzc2Dt29EPAvkRxbANsAnjyPbb3iQ1YBRk1UXcdRsiKc9dhwMVgN5S9cQUiyoogDavup3H.