Author: Zak Cole

Blockchain For Business

Within the last few months, the cryptocurrency space has seen tremendous growth. Every day an article can be found touting the analysis from another enterprise or economic mogul weighing in on the debate; is this a bubble? Many liken the phenomenon to tulip mania, the first recorded speculative bubble. A couple years ago, everyone dismissed my enthusiasm for cryptocurrency and blockchain technology, writing me off as a weirdo nerd, but recently it seems as if I’ve been regarded as some sort of savant. I think it’s safe for me to assume that 90% or more of the people I’ve encountered...

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Blockchain For Networking

Blockchain, also referred to as distributed ledger, is the concept behind the success of Bitcoin and provides a dynamic digital register of transactions. Think of it as a database that’s distributed throughout a network. Information is continually shared and reconciled throughout multiple nodes and each one has an identical copy of the database. Transactions within this database are audited and agreed upon by consensus. This decentralized method of keeping track of changes ensures the ledger can’t be practically controlled by any one entity, eliminates the possibility of single-points of failure, and allows for the verification of transactions without the need for...

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Bitcoin Mining Difficulty

The heart of Bitcoin is the blockchain. This distributed ledger system is a dynamic and decentralized database that contains a list of all the Bitcoin transactions that have ever taken place. The list is continually updated with every new transaction that occurs and groups of transactions are built into small, chronological bundles called blocks. A transaction can’t be changed once it’s added to the list and it’s shared and stored on a massive network of devices called nodes. Node Diggity, Node Doubt Nodes maintain the database and validate transactions. When a transaction occurs, it’s broadcast from one node to...

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An Interview With Ripple’s Jed McCaleb

Jed McCaleb is the co-founder and CTO of OpenCoin Inc. and the original developer of Ripple. Previously, Jed created eDonkey in 2000 (one of the largest p2p file sharing network at the time) and Mt. Gox in 2010 (the largest Bitcoin exchange). Jed dropped out of UC Berkeley in his freshman year to start building things. Why does the world need Ripple? The internet has changed many things, but finance and payments have never really changed. What we have now is just a hack to what existed in the ’60s—checks, banking, stuff like that. It’s overdue. So you see...

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