Aspects of the disclosure relate to distributed ledgers in OTP verification. A computing platform may receive an event processing request. The computing platform may generate a one time password, and record the one time password in a distributed ledger, and send the one time password to a first device. The computing platform may receive, from a second device, the one time password, which may have been sent from the first device to the second device. Using the distributed ledger, the computing platform may validate the one time password, and may record, in the distributed ledger, validation information indicating that the first one time password was validated. Based on validating the first one time password using the distributed ledger, the computing platform may process a requested event, and may notify the second device that the event was processed.