Videos

(Bitcoin) Script Kiddies – Understanding Basic Transaction Scripts

A technical look at home Bitcoin transaction scripts work, with a walkthrough of the most common Pay to Public Key Hash script type.

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Intro to Cryptocurrencies – Saint Vincent College 2019

A brief look at the world of cryptocurrencies for finance students at Saint Vincent College on January 28th, 2019. A big thank you to Dr. Mark Abramovic for inviting me to speak to his students in his corporate finance and derivatives classes.

View the slides here


EZ-Pay – Full Node vs. SPV Wallets

A technical overview of the differences between full node and SPV (simplified payment verification) wallets – how they verify funds and security/privacy concerns

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What’s in Your Wallet? Understanding Private Key Control

A discussion of the different models digital currency wallets use to keep your private keys (and therefore your money!) safe.

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Playing With Blocks: The Basics of Blockchain Databases (Part 2 – Blockchain for Techies)

A technical look at how blockchains are secured using proof of work and cryptographic hash “chaining”.

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Playing With Blocks: The Basics of Blockchain Databases (Part 1 – Blockchain for Everyone)

What is a blockchain? Why is it so different than a regular database? What is a blockchain good for? This overview of blockchain databases will help explain the basics.

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BIP39 Mnemonics Made Easy (Part 2 – The Tech of Bits to Backups)

An in-depth look at how mnemonic backups are generated for crypto wallets using the BIP39 protocol.

NOTE: a few times I said 248 when I meant 2048, and some binary numbers are mis-written on the board. My apologies! The article and slides are correct AFAIK.

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BIP39 Mnemonics Made Easy (Part 1 – Backups, Simplified!)

This video explains how the Bitcoin developers made backups easy with HD wallets and mnemonic seed phrases.

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Proof of Work, Explained (Part 2 – A Hash Bash for Techies)

A technical look at proof of work algorithms used in applications such as Bitcoin and Bitcoin Cash.

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Bitcoin as “Digital Gold” is Bad for Crypto Adoption

An opinion piece discussing the view of Bitcoin as “digital gold” vs. “digital cash” – which way do you prefer to see bitcoin?

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Proof of Work, Explained (Part 1 – POW for Non-Techies)

Learn about proof of work algorithms and their applications in cryptocurrencies and anti-spam. This non-technical overview will explain the basic of POW and how it is used to keep bitcoin secure.

Read the article here