The term 'put down on paper' can be broken down into four crossword solutions: JOT, WROTE, WRITE, and PEN. JOT is a verb meaning to quickly WRITE something down, usually in shorthand or abbreviated form. WROTE is the past tense of the verb WRITE, which means to form letters, words, or symbols on a surface in order to communicate. PEN is a noun referring to a writing instrument used to apply ink to a surface. Together, these solutions suggest that the phrase 'put down on paper' means to record something in written form using a PEN or other writing instrument.