An exercise in predicting the future for the Arrow Glacier fork

This article is an exercise in predicting the effect of EIP 4345. That EIP sets back the difficulty bomb at an as-yet-undetermined point in December of 2021. …


Further Explorations into Sending Money to Myself

This is the second article in a two-part series using TrueBlocks to explore the MetaMask Swap Router and how much it costs. Click here for part I.

Yes Dear…

In the previous article, I was discussing this transaction (as presented by the TrueBlocks front end in US dollars at the time of…


Fees and Slippage and Such

This is the first of a two part series describing my shock at how much it cost me to swap my own money for my own money using MetaMask. This article describes how we used TrueBlocks to figure out what happened. Click here for Part II.

Yes, Dear…

My wife spent her…


Custom Ethereum extraction for permissionless access to your data

Ethereum nodes come to consensus on a world-wide global ledger of smart contract invocations every 14 seconds. Everyone know this. This is what we celebrate about the chain. Not only is this data world-wide and consented-to, but it is also permissionless…


…a piece of open source software called an Ethereum node collects together a random, unordered collection of transactions, and after throwing out the invalid ones, puts the rest in a well-defined order.

The system then seals this newly ordered list for the rest of human history (modulo re-orgs) by creating…


This the second in a series of two articles detailing Ethereum’s issuance. Read the first part, which discusses the blockReward calculation. Also, see the code base for the actual code. This article discusses the uncleReward.

Uncle Reward

Previously, we looked at the ungrammatical second sentence in Section 11.3 of Ethereum’s Yellow Paper…


Recently, there was a dustup on Crypto Twitter (started here, carries on here) about Ethereum’s money supply. The claim was made that Ethereum’s money supply was not easily available, nor was it widely agreed upon.

News flash: Both of these claims are right.

At one point, our project, TrueBlocks, was…


This article is incomplete in the extreme.

[Jan 20, 2021: Since writing this article, we’ve come upon a project called TurboGeth. It reduces the size of the hard drive needed for an archive node from 6TB to around 1.5TB. Significant difference. Same data. Less costs.]

In the first part, we…


Why build an 18-decimal place accurate ledger if it doesn’t balance?

[Accompanying Video]

I had a call this morning with a cryptocurrency accountant. He’s a wonderful fellow. One of those people who can happily wade through thousands of rows of a spreadsheet trying to get the digits to behave themselves…

Thomas Jay Rush

Blockchain Enthusiast, Founder TrueBlocks, LLC and Philadelphia Ethereum Meetup, MS Computer Science UPenn

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