V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

OTP
       One Time Password


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

OTP
       One Time Programmable [chip] (IC)


The Free On-line Dictionary of Computing (30 December 2018):

OTP

   1.  One-Time Password.

   2.  Open Trading Protocol.

   3.  One Time Programmable Read
   Only Memory.

   4.  Open Telecom Platform.

   (2001-08-28)