Chapter 7: Backup and buckle up — Recap: Amy lost her private key. Honey, I mint an NFT! Chapter 6: Not Your Key, Not Your Coinmedium.com “It is really easy to retrieve the private key. The challenge is always how to safeguard it from hacks,” said Jessica. “Hacks! Like what you experienced recently? All these things sound so scary.” Amy looked genuinely worried. “Don’t worry too much. As long as…

Chapter 6: Not Your Key, Not Your Coin — Recap: Jessica’s NFTs were hacked but were returned. Honey, I minted an NFT! Chapter 5: The Heistmedium.com Amy’s face turned pale. She was in a real panic. “Breath, honey!” Zack stroked Amy’s back, trying to calm her down. “Maybe you will be able to recall the key after you calmed down.” “It is 64 random characters and numbers. I…

Chapter 5: The Heist — Recap: Jessica explained hash and distributed ledger technology to Zack. Honey, I mint an NFT! Chapter 4: The Distributed Ledger Systemmedium.com “Darling, did you mint your NFT on OpenSea?” This was the first thing Zack said when walking through the door coming back from work. “Yes, I did. It is the biggest marketplace. What happened? You look worried.” …

Chapter 4: The Distributed Ledger System — Recap: Amy introduced Beeple’s NFT to Zack. Honey, I minted an NFT! Chapter 3: The USD69 million Digital Artmedium.com It was 8 a.m. on a Sunday and Amy was still pretty drowsy. She is not a morning person. “Hi, Jess! Meet Zack, my husband.” Amy greeted Jessica over the monitor when Jessica came online. They set up a conference call. …

Chapter 3: The USD69 million Digital Art — Recap: Amy tried to explain NFTs to Zack but to no avail. Honey, I minted an NFT! Chapter 2: Jessica, the Pen Palivyfung1.medium.com They sat back down at the dining table and immediately Amy turned on her laptop, launched Chrome and searched for “Beeple NFT”, leaving the apple pie on the table. Zack on the other hand dug in right away…

Chapter 2: Jessica, the Pen Pal — Recap: Amy told Zack she minted an NFT. Zack was trying to understand what it is and was asking who introduce it to her. Honey, I minted an NFT! Chapter 1: Gobi, the dogivyfung1.medium.com “Darling, what’s for dinner?” Zack walked into the kitchen after showering, looking much fresher than before. He saw the pizza and clam chowder on the dining…

Chapter 1: Gobi, the dog — Prologue As a trainer, I often hear the audience apologising for “stupid” questions they are going to ask. There is no “stupid” question, especially about “blockchain”, something that is so new and even the word “blockchain” itself is only a decade old. So, rather than writing an academic book about…

Both can be stolen — February seems to be the month of NFTs. 2021, NFTs rose to fame when Beeple sold his NFT for almost USD70 million. This year, a potentially USD200 million hack on OpenSea, the biggest NFTs marketplace, has made it big to the news. It is a “potentially USD200 million hack” because…

Consensus protocols: Harvest and Bake — Chips to the Brits, are fries to the Americans; they are the same, with slight differences. Symbol harvests and Tezos bakes; they are both using the Proof-of-Stake protocol with twists. Symbol’s PoS+ Symbol is the second generation of NIS1 (NEM Infrastructure System 1). It has been using proof-of-stake, with some variations, since…