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Table of Contents

Lead Story

ATM industry's high-tech second act

Dale S. Laszig


Industry Update

Terrapinn expo probes omnichannel themes

Verifone Curb advances NYC taxi booking

CFPB on hot seat, again

Cayan hosts third annual Hackathon


Taking your business to the next level - Part 3

NFC Mobile Services

Mobile moving target

How safe is the cloud?

Breaking free of autopilot mode


Building a case for RDC check services

Patti Murphy
ProScribes Inc

Heads up, cheaters: Truth will out

Brandes Elitch
CrossCheck Inc.

Payment technology companies offer more than EMV upgrades

Adam Hark


Street SmartsSM:
Creating complex solutions for complex problems

John Tucker
1st Capital Loans LLC

The hybrid approach to sales

Jeff Fortney
Clearent LLC

Be wary of hackers seeking BII

Kevin Mendizabal
Frates Insurance and Risk Management

Company Profile

Zooz Inc.

New Products

Mobile marketing platform to drive sales

Movylo Inc.

Enhanced checkout for e-commerce

Powered Buy Platform
BlueSnap Inc.


Back to basics, again, again


Letter from the Editors

Readers Speak

Resource Guide


A Bigger Thing

The Green Sheet Online Edition

April 11, 2016  •  Issue 16:04:01

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Readers Speak

What's the deal with blockchain?

I've heard that companies are researching the possibility of using blockchain technology for identification and authentication. What is blockchain technology and what's the difference between identification and authentication?

Devin Rombly, Merchant Level Salesperson


A blockchain is a distributed database that consists of a continuously growing list of data records. Each record refers to previous items on the list, which hardens the list against tampering and revision. The first application of block chain technology was in the public ledger of bitcoin transactions. Its use in bitcoin inspired other cryptocurrencies, as well as distributed databases designed for other uses such as identification and authentication.

Identification and authentication are often used synonymously, but they are distinct. Identification occurs when a person claims, by presenting a user name and password, driver's license, etc., to have a certain identity to obtain access to a system. Authentication occurs when a system determines a person presenting identification to obtain access is, indeed, who he or she claims to be.

The Green Sheet published a feature titled "The blockchain phenomenon" on Dec. 14, 2015, in issue 15:12:01. The article delves into several uses for blockchain now being explored, including data management, activity tracking, authentication, reconciliation and auditing. Some innovators see the technology as being more efficient than current systems and thus more capable of deterring corruption and fraud.

Thanks for turning to The Green Sheet as a resource for your career in the payments industry.


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Spotlight Innovators:

North American Bancard | Simpay | USAePay | Impact Paysystems | Board Studios