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Cryptocurrency
Mining is the production of cryptocurrency through hardware and software, as well as the recording and confirmation of cryptocurrency transfers. Because block difficulty rises with each new unit, mining requires very powerful processors.
Cryptocurrency
Cryptocurrencies are becoming part of everyday life and are expected to compete seriously with card payments. This glossary explains the key crypto terms, from address, altcoin and arbitrage to halving, mining, proof of stake and stop-loss.
Cryptocurrency
Bitcoin is a digital currency launched experimentally in 2009 by Satoshi Nakamoto. It has no ties to any central bank, can be bought and sold with national currencies and can be transferred without any intermediary.
Merchant & POS
If your POS can't start a new transaction, it's likely stuck trying to send a reversal for an earlier transaction. Here are two fixes: one recommended, one risky.
Closed-Loop Payments
Why does a coffee chain build its own loyalty program, and why does a payment app keep adding services? This post looks at how loyalty, data, and new services drive the growth of closed-loop payment systems, and at the financial layers behind that growth.
EMV
The AID tells the terminal which applications are present on a chip during a POS or ATM transaction. What does the AID do? It lets the terminal determine whether it supports an application on the chip. In Tag 9F06, it is 5-16 digits long.